./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:43:21,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:43:21,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:43:21,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:43:21,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:43:21,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:43:21,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:43:21,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:43:21,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:43:21,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:43:21,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:43:21,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:43:21,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:43:21,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:43:21,574 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:43:21,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:43:21,575 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:43:21,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:43:21,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:43:21,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:43:21,576 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:43:21,578 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:43:21,578 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:43:21,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:43:21,579 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:43:21,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:43:21,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:43:21,580 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:43:21,580 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:43:21,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:43:21,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:43:21,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:43:21,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:43:21,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:43:21,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:43:21,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:43:21,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:43:21,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:43:21,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:43:21,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:43:21,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:43:21,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:43:21,583 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2024-10-14 19:43:21,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:43:21,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:43:21,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:43:21,843 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:43:21,844 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:43:21,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-10-14 19:43:23,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:43:23,468 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:43:23,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-10-14 19:43:23,494 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2259aa7/0d79f547dcf845b099e4bcea0af15f00/FLAG54f844dc7 [2024-10-14 19:43:23,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2259aa7/0d79f547dcf845b099e4bcea0af15f00 [2024-10-14 19:43:23,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:43:23,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:43:23,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:43:23,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:43:23,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:43:23,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:43:23" (1/1) ... [2024-10-14 19:43:23,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1968d074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:23, skipping insertion in model container [2024-10-14 19:43:23,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:43:23" (1/1) ... [2024-10-14 19:43:23,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:43:24,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:43:24,073 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:43:24,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:43:24,215 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:43:24,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24 WrapperNode [2024-10-14 19:43:24,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:43:24,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:43:24,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:43:24,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:43:24,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,289 INFO L138 Inliner]: procedures = 354, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-10-14 19:43:24,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:43:24,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:43:24,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:43:24,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:43:24,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,334 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]. [2024-10-14 19:43:24,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:43:24,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:43:24,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:43:24,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:43:24,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (1/1) ... [2024-10-14 19:43:24,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:43:24,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:43:24,416 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) [2024-10-14 19:43:24,418 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 [2024-10-14 19:43:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-14 19:43:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-14 19:43:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-14 19:43:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-14 19:43:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 19:43:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 19:43:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:43:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:43:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 19:43:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:43:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:43:24,470 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:43:24,741 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:43:24,744 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:43:24,885 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:43:24,886 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:43:24,973 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:43:24,973 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:43:24,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:24 BoogieIcfgContainer [2024-10-14 19:43:24,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:43:24,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:43:24,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:43:24,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:43:24,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:43:23" (1/3) ... [2024-10-14 19:43:24,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e296058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:43:24, skipping insertion in model container [2024-10-14 19:43:24,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:24" (2/3) ... [2024-10-14 19:43:24,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e296058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:43:24, skipping insertion in model container [2024-10-14 19:43:24,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:24" (3/3) ... [2024-10-14 19:43:24,983 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-10-14 19:43:25,000 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:43:25,001 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:43:25,002 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:43:25,040 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 19:43:25,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 80 flow [2024-10-14 19:43:25,125 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2024-10-14 19:43:25,125 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 19:43:25,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 2/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-10-14 19:43:25,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 33 transitions, 80 flow [2024-10-14 19:43:25,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 72 flow [2024-10-14 19:43:25,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:43:25,168 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;@13e6dd3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:43:25,168 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 19:43:25,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:43:25,178 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2024-10-14 19:43:25,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:43:25,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:25,180 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:25,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:43:25,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1625130636, now seen corresponding path program 1 times [2024-10-14 19:43:25,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:43:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553350506] [2024-10-14 19:43:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:43:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:43:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:43:25,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:43:25,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553350506] [2024-10-14 19:43:25,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553350506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:43:25,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:43:25,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:43:25,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054013024] [2024-10-14 19:43:25,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:43:25,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:43:25,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:43:25,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:43:25,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:43:25,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-10-14 19:43:25,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-14 19:43:25,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:43:25,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-10-14 19:43:25,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:43:25,991 INFO L124 PetriNetUnfolderBase]: 214/412 cut-off events. [2024-10-14 19:43:25,992 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-14 19:43:25,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 412 events. 214/412 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1745 event pairs, 91 based on Foata normal form. 26/423 useless extension candidates. Maximal degree in co-relation 781. Up to 207 conditions per place. [2024-10-14 19:43:25,998 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 36 selfloop transitions, 10 changer transitions 0/52 dead transitions. [2024-10-14 19:43:25,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 52 transitions, 214 flow [2024-10-14 19:43:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:43:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:43:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2024-10-14 19:43:26,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5575757575757576 [2024-10-14 19:43:26,012 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 72 flow. Second operand 5 states and 92 transitions. [2024-10-14 19:43:26,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 52 transitions, 214 flow [2024-10-14 19:43:26,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 52 transitions, 202 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:43:26,021 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 124 flow [2024-10-14 19:43:26,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=124, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2024-10-14 19:43:26,027 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2024-10-14 19:43:26,027 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 124 flow [2024-10-14 19:43:26,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-14 19:43:26,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:26,029 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:26,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:43:26,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:43:26,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:26,030 INFO L85 PathProgramCache]: Analyzing trace with hash -812809834, now seen corresponding path program 1 times [2024-10-14 19:43:26,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:43:26,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947849711] [2024-10-14 19:43:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:43:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:43:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:43:26,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:43:26,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947849711] [2024-10-14 19:43:26,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947849711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:43:26,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:43:26,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:43:26,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506301395] [2024-10-14 19:43:26,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:43:26,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:43:26,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:43:26,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:43:26,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:43:26,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-10-14 19:43:26,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-10-14 19:43:26,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:43:26,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-10-14 19:43:26,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:43:26,479 INFO L124 PetriNetUnfolderBase]: 96/220 cut-off events. [2024-10-14 19:43:26,480 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-14 19:43:26,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 220 events. 96/220 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 763 event pairs, 24 based on Foata normal form. 26/244 useless extension candidates. Maximal degree in co-relation 460. Up to 71 conditions per place. [2024-10-14 19:43:26,483 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 30 selfloop transitions, 15 changer transitions 0/51 dead transitions. [2024-10-14 19:43:26,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 51 transitions, 241 flow [2024-10-14 19:43:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:43:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:43:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 108 transitions. [2024-10-14 19:43:26,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4675324675324675 [2024-10-14 19:43:26,489 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 124 flow. Second operand 7 states and 108 transitions. [2024-10-14 19:43:26,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 51 transitions, 241 flow [2024-10-14 19:43:26,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 235 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 19:43:26,494 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 134 flow [2024-10-14 19:43:26,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=134, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2024-10-14 19:43:26,496 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2024-10-14 19:43:26,497 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 134 flow [2024-10-14 19:43:26,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-10-14 19:43:26,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:26,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:26,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:43:26,498 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:43:26,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:26,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2113086282, now seen corresponding path program 1 times [2024-10-14 19:43:26,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:43:26,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681767814] [2024-10-14 19:43:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:26,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:43:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 19:43:26,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 19:43:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 19:43:26,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 19:43:26,589 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 19:43:26,590 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-14 19:43:26,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-14 19:43:26,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-14 19:43:26,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-14 19:43:26,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2024-10-14 19:43:26,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:43:26,594 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 19:43:26,637 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:43:26,637 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:43:26,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:43:26 BasicIcfg [2024-10-14 19:43:26,642 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:43:26,643 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:43:26,644 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:43:26,644 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:43:26,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:24" (3/4) ... [2024-10-14 19:43:26,646 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 19:43:26,647 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:43:26,648 INFO L158 Benchmark]: Toolchain (without parser) took 3130.80ms. Allocated memory was 134.2MB in the beginning and 260.0MB in the end (delta: 125.8MB). Free memory was 59.6MB in the beginning and 164.5MB in the end (delta: -104.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 19:43:26,648 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:26,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 698.28ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 59.3MB in the beginning and 128.0MB in the end (delta: -68.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-10-14 19:43:26,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.96ms. Allocated memory is still 186.6MB. Free memory was 128.0MB in the beginning and 124.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:43:26,649 INFO L158 Benchmark]: Boogie Preprocessor took 88.38ms. Allocated memory is still 186.6MB. Free memory was 124.9MB in the beginning and 121.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:43:26,650 INFO L158 Benchmark]: RCFGBuilder took 594.41ms. Allocated memory is still 186.6MB. Free memory was 121.7MB in the beginning and 91.2MB in the end (delta: 30.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-14 19:43:26,652 INFO L158 Benchmark]: TraceAbstraction took 1666.11ms. Allocated memory was 186.6MB in the beginning and 260.0MB in the end (delta: 73.4MB). Free memory was 90.2MB in the beginning and 164.5MB in the end (delta: -74.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:26,652 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 260.0MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:26,656 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 698.28ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 59.3MB in the beginning and 128.0MB in the end (delta: -68.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.96ms. Allocated memory is still 186.6MB. Free memory was 128.0MB in the beginning and 124.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.38ms. Allocated memory is still 186.6MB. Free memory was 124.9MB in the beginning and 121.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 594.41ms. Allocated memory is still 186.6MB. Free memory was 121.7MB in the beginning and 91.2MB in the end (delta: 30.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1666.11ms. Allocated memory was 186.6MB in the beginning and 260.0MB in the end (delta: 73.4MB). Free memory was 90.2MB in the beginning and 164.5MB in the end (delta: -74.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 260.0MB. Free memory is still 164.5MB. 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: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, \old(argv)={1150:1151}, \old(ptr)={0:0}, argc=1152, g=0, mut={3:0}, t1=-1] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, \old(argv)={1150:1151}, \old(ptr)={0:0}, argc=1152, g=0, mut={3:0}, t1=-1, t2=0] [L1356] 1 g = 1 VAL [\old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) VAL [\old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}] [L18] 2 __assert_fail ("0", "13-privatized_67-pthread_cond_wait_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1371]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 55 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 0 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 19:43:26,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:43:28,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:43:28,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-14 19:43:28,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:43:28,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:43:28,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:43:28,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:43:28,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:43:28,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:43:28,936 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:43:28,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:43:28,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:43:28,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:43:28,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:43:28,939 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:43:28,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:43:28,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:43:28,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:43:28,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:43:28,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:43:28,942 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:43:28,943 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:43:28,943 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:43:28,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:43:28,944 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:43:28,944 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 19:43:28,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:43:28,945 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 19:43:28,945 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:43:28,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:43:28,946 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:43:28,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:43:28,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:43:28,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:43:28,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:43:28,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:43:28,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:43:28,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:43:28,948 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 19:43:28,949 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 19:43:28,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:43:28,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:43:28,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:43:28,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:43:28,952 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 19:43:28,952 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2024-10-14 19:43:29,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:43:29,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:43:29,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:43:29,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:43:29,336 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:43:29,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-10-14 19:43:30,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:43:31,111 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:43:31,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-10-14 19:43:31,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b18efa4/2b4d7aa05bf7448f9d99deff38a09357/FLAGc3abe9ca7 [2024-10-14 19:43:31,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b18efa4/2b4d7aa05bf7448f9d99deff38a09357 [2024-10-14 19:43:31,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:43:31,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:43:31,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:43:31,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:43:31,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:43:31,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:31,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5311812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31, skipping insertion in model container [2024-10-14 19:43:31,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:31,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:43:31,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:43:31,797 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:43:31,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:43:31,961 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:43:31,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31 WrapperNode [2024-10-14 19:43:31,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:43:31,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:43:31,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:43:31,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:43:31,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,037 INFO L138 Inliner]: procedures = 358, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-10-14 19:43:32,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:43:32,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:43:32,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:43:32,039 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:43:32,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,080 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]. [2024-10-14 19:43:32,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:43:32,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:43:32,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:43:32,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:43:32,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (1/1) ... [2024-10-14 19:43:32,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:43:32,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:43:32,165 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) [2024-10-14 19:43:32,172 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 [2024-10-14 19:43:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-14 19:43:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-14 19:43:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-14 19:43:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-14 19:43:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 19:43:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 19:43:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-10-14 19:43:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-10-14 19:43:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 19:43:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 19:43:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:43:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:43:32,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:43:32,224 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:43:32,544 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:43:32,547 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:43:32,725 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:43:32,726 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:43:32,854 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:43:32,854 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:43:32,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:32 BoogieIcfgContainer [2024-10-14 19:43:32,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:43:32,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:43:32,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:43:32,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:43:32,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:43:31" (1/3) ... [2024-10-14 19:43:32,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c665236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:43:32, skipping insertion in model container [2024-10-14 19:43:32,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:31" (2/3) ... [2024-10-14 19:43:32,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c665236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:43:32, skipping insertion in model container [2024-10-14 19:43:32,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:32" (3/3) ... [2024-10-14 19:43:32,867 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-10-14 19:43:32,884 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:43:32,884 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:43:32,884 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:43:32,936 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 19:43:32,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 80 flow [2024-10-14 19:43:33,011 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2024-10-14 19:43:33,012 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 19:43:33,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 2/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-10-14 19:43:33,018 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 33 transitions, 80 flow [2024-10-14 19:43:33,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 72 flow [2024-10-14 19:43:33,033 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:43:33,040 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;@36a71357, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:43:33,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 19:43:33,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:43:33,053 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2024-10-14 19:43:33,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:43:33,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:33,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:33,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:43:33,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash -313271628, now seen corresponding path program 1 times [2024-10-14 19:43:33,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:43:33,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023975136] [2024-10-14 19:43:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:33,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:43:33,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:43:33,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:43:33,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 19:43:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:43:33,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 19:43:33,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:43:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:43:33,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:43:33,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:43:33,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023975136] [2024-10-14 19:43:33,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023975136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:43:33,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:43:33,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:43:33,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889286101] [2024-10-14 19:43:33,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:43:33,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:43:33,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:43:33,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:43:33,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:43:33,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-10-14 19:43:33,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-10-14 19:43:33,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:43:33,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-10-14 19:43:33,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:43:33,615 INFO L124 PetriNetUnfolderBase]: 191/389 cut-off events. [2024-10-14 19:43:33,616 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-14 19:43:33,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 389 events. 191/389 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1751 event pairs, 91 based on Foata normal form. 43/430 useless extension candidates. Maximal degree in co-relation 721. Up to 220 conditions per place. [2024-10-14 19:43:33,623 INFO L140 encePairwiseOnDemand]: 25/33 looper letters, 35 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2024-10-14 19:43:33,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 208 flow [2024-10-14 19:43:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:43:33,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:43:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 95 transitions. [2024-10-14 19:43:33,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-10-14 19:43:33,637 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 72 flow. Second operand 5 states and 95 transitions. [2024-10-14 19:43:33,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 208 flow [2024-10-14 19:43:33,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 51 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:43:33,643 INFO L231 Difference]: Finished difference. Result has 37 places, 34 transitions, 114 flow [2024-10-14 19:43:33,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2024-10-14 19:43:33,649 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-10-14 19:43:33,649 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 114 flow [2024-10-14 19:43:33,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-10-14 19:43:33,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:33,650 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:33,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-14 19:43:33,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:43:33,855 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:43:33,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash 871473176, now seen corresponding path program 1 times [2024-10-14 19:43:33,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:43:33,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783066195] [2024-10-14 19:43:33,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:33,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:43:33,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:43:33,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:43:33,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 19:43:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:43:34,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:43:34,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:43:34,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-10-14 19:43:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:43:34,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:43:34,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:43:34,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783066195] [2024-10-14 19:43:34,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783066195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:43:34,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:43:34,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:43:34,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276180077] [2024-10-14 19:43:34,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:43:34,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:43:34,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:43:34,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:43:34,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:43:34,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-10-14 19:43:34,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-14 19:43:34,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:43:34,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-10-14 19:43:34,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:43:34,355 INFO L124 PetriNetUnfolderBase]: 89/213 cut-off events. [2024-10-14 19:43:34,355 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-14 19:43:34,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 213 events. 89/213 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 748 event pairs, 31 based on Foata normal form. 22/233 useless extension candidates. Maximal degree in co-relation 468. Up to 123 conditions per place. [2024-10-14 19:43:34,358 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 23 selfloop transitions, 6 changer transitions 0/36 dead transitions. [2024-10-14 19:43:34,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 164 flow [2024-10-14 19:43:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:43:34,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:43:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-10-14 19:43:34,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2024-10-14 19:43:34,370 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 114 flow. Second operand 3 states and 56 transitions. [2024-10-14 19:43:34,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 164 flow [2024-10-14 19:43:34,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 162 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-14 19:43:34,373 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 102 flow [2024-10-14 19:43:34,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2024-10-14 19:43:34,374 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-10-14 19:43:34,374 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 102 flow [2024-10-14 19:43:34,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-14 19:43:34,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:34,375 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:34,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-14 19:43:34,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:43:34,576 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:43:34,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:34,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1126598794, now seen corresponding path program 1 times [2024-10-14 19:43:34,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:43:34,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917923732] [2024-10-14 19:43:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:34,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:43:34,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:43:34,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:43:34,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-14 19:43:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 19:43:34,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 19:43:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 19:43:34,774 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-14 19:43:34,775 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 19:43:34,776 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-14 19:43:34,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-14 19:43:34,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-14 19:43:34,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-14 19:43:34,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2024-10-14 19:43:34,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-14 19:43:34,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:43:34,983 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 19:43:35,022 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:43:35,023 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:43:35,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:43:35 BasicIcfg [2024-10-14 19:43:35,029 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:43:35,030 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:43:35,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:43:35,030 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:43:35,031 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:32" (3/4) ... [2024-10-14 19:43:35,033 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 19:43:35,034 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:43:35,036 INFO L158 Benchmark]: Toolchain (without parser) took 3883.14ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 44.8MB in the beginning and 63.6MB in the end (delta: -18.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2024-10-14 19:43:35,039 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 29.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:35,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 808.72ms. Allocated memory is still 81.8MB. Free memory was 44.6MB in the beginning and 50.2MB in the end (delta: -5.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-10-14 19:43:35,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.83ms. Allocated memory is still 81.8MB. Free memory was 50.2MB in the beginning and 47.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:43:35,040 INFO L158 Benchmark]: Boogie Preprocessor took 86.67ms. Allocated memory is still 81.8MB. Free memory was 47.3MB in the beginning and 43.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:43:35,040 INFO L158 Benchmark]: RCFGBuilder took 729.44ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 43.4MB in the beginning and 77.8MB in the end (delta: -34.3MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2024-10-14 19:43:35,040 INFO L158 Benchmark]: TraceAbstraction took 2170.72ms. Allocated memory is still 111.1MB. Free memory was 77.1MB in the beginning and 63.6MB in the end (delta: 13.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-10-14 19:43:35,040 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 111.1MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:35,046 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 29.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 808.72ms. Allocated memory is still 81.8MB. Free memory was 44.6MB in the beginning and 50.2MB in the end (delta: -5.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.83ms. Allocated memory is still 81.8MB. Free memory was 50.2MB in the beginning and 47.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.67ms. Allocated memory is still 81.8MB. Free memory was 47.3MB in the beginning and 43.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 729.44ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 43.4MB in the beginning and 77.8MB in the end (delta: -34.3MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2170.72ms. Allocated memory is still 111.1MB. Free memory was 77.1MB in the beginning and 63.6MB in the end (delta: 13.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 111.1MB. Free memory is still 63.6MB. 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: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=200, \old(argv)={202:201}, \old(ptr)={0:0}, argc=200, g=0, mut={3:0}, t1=-1] [L1356] 1 g = 1 VAL [\old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=200, \old(argv)={202:201}, \old(ptr)={0:0}, argc=200, g=1, mut={3:0}, ptr={0:0}, t1=-1, t2=0] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) VAL [\old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}] [L18] 2 __assert_fail ("0", "13-privatized_67-pthread_cond_wait_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1371]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 55 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=1, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 2 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 19:43:35,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample