./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:55:59,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:55:59,886 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:55:59,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:55:59,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:55:59,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:55:59,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:55:59,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:55:59,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:55:59,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:55:59,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:55:59,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:55:59,908 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:55:59,909 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:55:59,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:55:59,909 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2025-02-06 12:56:00,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:56:00,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:56:00,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:56:00,124 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:56:00,124 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:56:00,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2025-02-06 12:56:01,340 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d426a507/74339d918c904b43b8ad302f1358caba/FLAGc4574fe40 [2025-02-06 12:56:01,617 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:56:01,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2025-02-06 12:56:01,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d426a507/74339d918c904b43b8ad302f1358caba/FLAGc4574fe40 [2025-02-06 12:56:01,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d426a507/74339d918c904b43b8ad302f1358caba [2025-02-06 12:56:01,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:56:01,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:56:01,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:56:01,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:56:01,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:56:01,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:56:01" (1/1) ... [2025-02-06 12:56:01,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4795616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:01, skipping insertion in model container [2025-02-06 12:56:01,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:56:01" (1/1) ... [2025-02-06 12:56:01,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:56:01,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:56:01,949 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:56:01,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:56:02,016 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:56:02,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02 WrapperNode [2025-02-06 12:56:02,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:56:02,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:56:02,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:56:02,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:56:02,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,047 INFO L138 Inliner]: procedures = 163, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-02-06 12:56:02,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:56:02,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:56:02,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:56:02,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:56:02,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,054 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,061 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]. [2025-02-06 12:56:02,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:56:02,073 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:56:02,073 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:56:02,073 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:56:02,074 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (1/1) ... [2025-02-06 12:56:02,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:56:02,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:56:02,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:56:02,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:56:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 12:56:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:56:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 12:56:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 12:56:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:56:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 12:56:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 12:56:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:56:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:56:02,147 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:56:02,241 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:56:02,242 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:56:02,322 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:56:02,322 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:56:02,380 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:56:02,380 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:56:02,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:02 BoogieIcfgContainer [2025-02-06 12:56:02,381 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:56:02,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:56:02,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:56:02,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:56:02,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:56:01" (1/3) ... [2025-02-06 12:56:02,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7194d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:56:02, skipping insertion in model container [2025-02-06 12:56:02,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:02" (2/3) ... [2025-02-06 12:56:02,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7194d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:56:02, skipping insertion in model container [2025-02-06 12:56:02,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:02" (3/3) ... [2025-02-06 12:56:02,390 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2025-02-06 12:56:02,402 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:56:02,403 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_18-first-reads_unknown_2_pos.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:56:02,404 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:56:02,444 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 12:56:02,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 25 transitions, 57 flow [2025-02-06 12:56:02,498 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2025-02-06 12:56:02,500 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:56:02,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 24 events. 2/24 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2025-02-06 12:56:02,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 25 transitions, 57 flow [2025-02-06 12:56:02,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 23 transitions, 52 flow [2025-02-06 12:56:02,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:56:02,528 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@27ac9a66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:56:02,530 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 12:56:02,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:56:02,538 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2025-02-06 12:56:02,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:56:02,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:56:02,539 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:56:02,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-02-06 12:56:02,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:56:02,545 INFO L85 PathProgramCache]: Analyzing trace with hash -765707252, now seen corresponding path program 1 times [2025-02-06 12:56:02,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:56:02,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588825867] [2025-02-06 12:56:02,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:56:02,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:56:02,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:56:02,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:56:02,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:02,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:56:02,642 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 12:56:02,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:56:02,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:56:02,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:02,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:56:02,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 12:56:02,684 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 12:56:02,685 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-06 12:56:02,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-02-06 12:56:02,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-06 12:56:02,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2025-02-06 12:56:02,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:56:02,687 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 12:56:02,704 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:56:02,704 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:56:02,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:56:02 BasicIcfg [2025-02-06 12:56:02,711 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:56:02,712 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:56:02,712 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:56:02,712 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:56:02,713 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:02" (3/4) ... [2025-02-06 12:56:02,714 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 12:56:02,714 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:56:02,716 INFO L158 Benchmark]: Toolchain (without parser) took 1074.90ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 58.9MB in the end (delta: 61.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-06 12:56:02,716 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 192.9MB. Free memory is still 111.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:02,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.99ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 100.9MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:56:02,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.24ms. Allocated memory is still 167.8MB. Free memory was 100.9MB in the beginning and 99.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:56:02,717 INFO L158 Benchmark]: Boogie Preprocessor took 24.62ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 97.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:02,718 INFO L158 Benchmark]: IcfgBuilder took 307.83ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 78.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:56:02,719 INFO L158 Benchmark]: TraceAbstraction took 328.93ms. Allocated memory is still 167.8MB. Free memory was 78.1MB in the beginning and 59.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:56:02,719 INFO L158 Benchmark]: Witness Printer took 2.22ms. Allocated memory is still 167.8MB. Free memory was 59.2MB in the beginning and 58.9MB in the end (delta: 368.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:02,720 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 192.9MB. Free memory is still 111.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.99ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 100.9MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.24ms. Allocated memory is still 167.8MB. Free memory was 100.9MB in the beginning and 99.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.62ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 97.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 307.83ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 78.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 328.93ms. Allocated memory is still 167.8MB. Free memory was 78.1MB in the beginning and 59.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.22ms. Allocated memory is still 167.8MB. Free memory was 59.2MB in the beginning and 58.9MB in the end (delta: 368.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible 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 FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) VAL [glob1=0, mutex1={3:0}] [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_2_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=0, mutex1={3:0}] - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - 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, 37 locations, 4 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: 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=52occurred 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, 8 NumberOfCodeBlocks, 8 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 could not prove your program: unable to determine feasibility of some traces [2025-02-06 12:56:02,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:56:04,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:56:04,837 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 12:56:04,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:56:04,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:56:04,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:56:04,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:56:04,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:56:04,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:56:04,857 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:56:04,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:56:04,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:56:04,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:56:04,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:56:04,857 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:56:04,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:56:04,858 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:56:04,859 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:56:04,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 12:56:04,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:56:04,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:56:04,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:56:04,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:56:04,860 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2025-02-06 12:56:05,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:56:05,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:56:05,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:56:05,111 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:56:05,111 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:56:05,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2025-02-06 12:56:06,336 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f695da370/5671bad6a5d949c396e7a298e179448b/FLAGb680d1c63 [2025-02-06 12:56:06,586 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:56:06,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2025-02-06 12:56:06,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f695da370/5671bad6a5d949c396e7a298e179448b/FLAGb680d1c63 [2025-02-06 12:56:06,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f695da370/5671bad6a5d949c396e7a298e179448b [2025-02-06 12:56:06,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:56:06,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:56:06,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:56:06,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:56:06,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:56:06,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:06,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b39bf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06, skipping insertion in model container [2025-02-06 12:56:06,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:06,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:56:06,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:56:06,886 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:56:06,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:56:06,957 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:56:06,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06 WrapperNode [2025-02-06 12:56:06,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:56:06,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:56:06,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:56:06,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:56:06,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:06,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:06,991 INFO L138 Inliner]: procedures = 167, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-02-06 12:56:06,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:56:06,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:56:06,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:56:06,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:56:06,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:06,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,015 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]. [2025-02-06 12:56:07,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,023 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:56:07,027 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:56:07,027 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:56:07,027 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:56:07,028 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (1/1) ... [2025-02-06 12:56:07,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:56:07,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:56:07,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:56:07,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:56:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 12:56:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:56:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 12:56:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 12:56:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 12:56:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 12:56:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-06 12:56:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-06 12:56:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 12:56:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:56:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:56:07,087 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:56:07,194 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:56:07,195 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:56:07,295 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:56:07,295 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:56:07,404 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:56:07,404 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:56:07,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:07 BoogieIcfgContainer [2025-02-06 12:56:07,405 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:56:07,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:56:07,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:56:07,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:56:07,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:56:06" (1/3) ... [2025-02-06 12:56:07,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73156393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:56:07, skipping insertion in model container [2025-02-06 12:56:07,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:06" (2/3) ... [2025-02-06 12:56:07,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73156393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:56:07, skipping insertion in model container [2025-02-06 12:56:07,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:07" (3/3) ... [2025-02-06 12:56:07,411 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2025-02-06 12:56:07,421 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:56:07,422 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_18-first-reads_unknown_2_pos.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:56:07,422 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:56:07,462 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 12:56:07,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 25 transitions, 57 flow [2025-02-06 12:56:07,501 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2025-02-06 12:56:07,503 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:56:07,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 24 events. 2/24 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2025-02-06 12:56:07,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 25 transitions, 57 flow [2025-02-06 12:56:07,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 23 transitions, 52 flow [2025-02-06 12:56:07,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:56:07,519 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@5746b704, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:56:07,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 12:56:07,530 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:56:07,530 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2025-02-06 12:56:07,530 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:56:07,530 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:56:07,531 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:56:07,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-02-06 12:56:07,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:56:07,540 INFO L85 PathProgramCache]: Analyzing trace with hash -765707252, now seen corresponding path program 1 times [2025-02-06 12:56:07,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:56:07,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311577320] [2025-02-06 12:56:07,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:56:07,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:56:07,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:56:07,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:56:07,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 12:56:07,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:56:07,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:56:07,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:07,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:56:07,625 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 12:56:07,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:56:07,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:56:07,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:07,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:56:07,657 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 12:56:07,658 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 12:56:07,659 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-06 12:56:07,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-02-06 12:56:07,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-06 12:56:07,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2025-02-06 12:56:07,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 12:56:07,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:56:07,862 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 12:56:07,880 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:56:07,880 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:56:07,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:56:07 BasicIcfg [2025-02-06 12:56:07,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:56:07,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:56:07,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:56:07,887 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:56:07,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:07" (3/4) ... [2025-02-06 12:56:07,889 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 12:56:07,890 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:56:07,891 INFO L158 Benchmark]: Toolchain (without parser) took 1275.42ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 28.0MB in the end (delta: 30.7MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2025-02-06 12:56:07,891 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:07,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.60ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 38.7MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:56:07,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.85ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:56:07,892 INFO L158 Benchmark]: Boogie Preprocessor took 34.71ms. Allocated memory is still 83.9MB. Free memory was 37.0MB in the beginning and 35.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:07,893 INFO L158 Benchmark]: IcfgBuilder took 377.60ms. Allocated memory is still 83.9MB. Free memory was 35.1MB in the beginning and 48.2MB in the end (delta: -13.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2025-02-06 12:56:07,894 INFO L158 Benchmark]: TraceAbstraction took 479.80ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 28.0MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:56:07,894 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 83.9MB. Free memory is still 28.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:07,896 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.60ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 38.7MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.85ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.71ms. Allocated memory is still 83.9MB. Free memory was 37.0MB in the beginning and 35.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 377.60ms. Allocated memory is still 83.9MB. Free memory was 35.1MB in the beginning and 48.2MB in the end (delta: -13.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 479.80ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 28.0MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 83.9MB. Free memory is still 28.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible 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=0, mutex1={3:0}] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) VAL [glob1=0, mutex1={3:0}] [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_2_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=0, mutex1={3:0}] - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - 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, 37 locations, 4 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: 0.4s, 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=52occurred 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, 8 NumberOfCodeBlocks, 8 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 could not prove your program: unable to determine feasibility of some traces [2025-02-06 12:56:07,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample