./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 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/pthread/lazy01.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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:14:13,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:14:13,509 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:14:13,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:14:13,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:14:13,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:14:13,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:14:13,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:14:13,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:14:13,548 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:14:13,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:14:13,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:14:13,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:14:13,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:14:13,552 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:14:13,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:14:13,553 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:14:13,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:14:13,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:14:13,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:14:13,557 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:14:13,559 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:14:13,559 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:14:13,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:14:13,560 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:14:13,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:14:13,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:14:13,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:14:13,561 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:14:13,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:14:13,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:14:13,562 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:14:13,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:14:13,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:14:13,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:14:13,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:14:13,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:14:13,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:14:13,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:14:13,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:14:13,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:14:13,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:14:13,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2024-11-20 17:14:13,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:14:13,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:14:13,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:14:13,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:14:13,852 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:14:13,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2024-11-20 17:14:15,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:14:15,531 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:14:15,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2024-11-20 17:14:15,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9021416/37a5cbfddf994c81b7a092aabc6615dc/FLAG73b76543f [2024-11-20 17:14:15,847 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9021416/37a5cbfddf994c81b7a092aabc6615dc [2024-11-20 17:14:15,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:14:15,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:14:15,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:14:15,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:14:15,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:14:15,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:15" (1/1) ... [2024-11-20 17:14:15,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b59c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:15, skipping insertion in model container [2024-11-20 17:14:15,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:15" (1/1) ... [2024-11-20 17:14:15,900 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:14:16,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:14:16,348 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:14:16,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:14:16,500 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:14:16,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16 WrapperNode [2024-11-20 17:14:16,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:14:16,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:14:16,504 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:14:16,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:14:16,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,551 INFO L138 Inliner]: procedures = 169, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2024-11-20 17:14:16,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:14:16,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:14:16,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:14:16,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:14:16,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,582 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]. [2024-11-20 17:14:16,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:14:16,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:14:16,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:14:16,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:14:16,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (1/1) ... [2024-11-20 17:14:16,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:14:16,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:14:16,640 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) [2024-11-20 17:14:16,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 17:14:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 17:14:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 17:14:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 17:14:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 17:14:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 17:14:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 17:14:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 17:14:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:14:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:14:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 17:14:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 17:14:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:14:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:14:16,695 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:14:16,849 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:14:16,851 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:14:17,023 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:14:17,023 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:14:17,130 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:14:17,131 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:14:17,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:17 BoogieIcfgContainer [2024-11-20 17:14:17,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:14:17,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:14:17,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:14:17,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:14:17,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:14:15" (1/3) ... [2024-11-20 17:14:17,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba0779a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:17, skipping insertion in model container [2024-11-20 17:14:17,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:16" (2/3) ... [2024-11-20 17:14:17,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba0779a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:17, skipping insertion in model container [2024-11-20 17:14:17,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:17" (3/3) ... [2024-11-20 17:14:17,145 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2024-11-20 17:14:17,164 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:14:17,164 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 17:14:17,164 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:14:17,218 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 17:14:17,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 38 transitions, 97 flow [2024-11-20 17:14:17,276 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-20 17:14:17,276 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 17:14:17,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 35 events. 2/35 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-20 17:14:17,280 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 38 transitions, 97 flow [2024-11-20 17:14:17,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 34 transitions, 86 flow [2024-11-20 17:14:17,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:14:17,298 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;@15100001, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:14:17,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-20 17:14:17,307 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:14:17,311 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-11-20 17:14:17,311 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 17:14:17,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:17,312 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:17,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:17,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1771620510, now seen corresponding path program 1 times [2024-11-20 17:14:17,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:14:17,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183083638] [2024-11-20 17:14:17,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:17,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:14:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:17,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:14:17,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183083638] [2024-11-20 17:14:17,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183083638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:17,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:17,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:14:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393063651] [2024-11-20 17:14:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:17,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:14:17,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:14:17,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:14:17,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:14:17,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-20 17:14:17,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-20 17:14:17,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:17,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-20 17:14:17,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:17,966 INFO L124 PetriNetUnfolderBase]: 588/1023 cut-off events. [2024-11-20 17:14:17,967 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-20 17:14:17,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1023 events. 588/1023 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5388 event pairs, 178 based on Foata normal form. 95/1096 useless extension candidates. Maximal degree in co-relation 1849. Up to 827 conditions per place. [2024-11-20 17:14:17,982 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 31 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2024-11-20 17:14:17,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 178 flow [2024-11-20 17:14:17,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:14:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:14:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-20 17:14:17,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6403508771929824 [2024-11-20 17:14:18,000 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 86 flow. Second operand 3 states and 73 transitions. [2024-11-20 17:14:18,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 178 flow [2024-11-20 17:14:18,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 162 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-20 17:14:18,012 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 87 flow [2024-11-20 17:14:18,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2024-11-20 17:14:18,018 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, -4 predicate places. [2024-11-20 17:14:18,018 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 87 flow [2024-11-20 17:14:18,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-20 17:14:18,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:18,019 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:18,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:14:18,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:18,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:18,020 INFO L85 PathProgramCache]: Analyzing trace with hash -895038378, now seen corresponding path program 1 times [2024-11-20 17:14:18,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:14:18,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862036366] [2024-11-20 17:14:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:18,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:14:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:18,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:14:18,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862036366] [2024-11-20 17:14:18,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862036366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:18,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:18,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:14:18,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500153606] [2024-11-20 17:14:18,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:18,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:14:18,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:14:18,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:14:18,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:14:18,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-20 17:14:18,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-20 17:14:18,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:18,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-20 17:14:18,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:18,326 INFO L124 PetriNetUnfolderBase]: 303/636 cut-off events. [2024-11-20 17:14:18,327 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 17:14:18,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 636 events. 303/636 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3032 event pairs, 108 based on Foata normal form. 80/709 useless extension candidates. Maximal degree in co-relation 734. Up to 327 conditions per place. [2024-11-20 17:14:18,332 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 28 selfloop transitions, 6 changer transitions 0/43 dead transitions. [2024-11-20 17:14:18,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 179 flow [2024-11-20 17:14:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:14:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:14:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-20 17:14:18,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6228070175438597 [2024-11-20 17:14:18,337 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 87 flow. Second operand 3 states and 71 transitions. [2024-11-20 17:14:18,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 179 flow [2024-11-20 17:14:18,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:14:18,339 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 96 flow [2024-11-20 17:14:18,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2024-11-20 17:14:18,340 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-11-20 17:14:18,340 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 96 flow [2024-11-20 17:14:18,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-20 17:14:18,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:18,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:18,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:14:18,341 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:18,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:18,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1678654816, now seen corresponding path program 1 times [2024-11-20 17:14:18,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:14:18,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058620068] [2024-11-20 17:14:18,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:18,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:14:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:18,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:14:18,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058620068] [2024-11-20 17:14:18,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058620068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:18,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:18,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:14:18,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8766610] [2024-11-20 17:14:18,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:18,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:14:18,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:14:18,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:14:18,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:14:18,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-20 17:14:18,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-20 17:14:18,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:18,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-20 17:14:18,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:18,612 INFO L124 PetriNetUnfolderBase]: 298/607 cut-off events. [2024-11-20 17:14:18,612 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-20 17:14:18,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 607 events. 298/607 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2824 event pairs, 65 based on Foata normal form. 5/606 useless extension candidates. Maximal degree in co-relation 255. Up to 363 conditions per place. [2024-11-20 17:14:18,617 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 39 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-11-20 17:14:18,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 238 flow [2024-11-20 17:14:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:14:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:14:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-11-20 17:14:18,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6052631578947368 [2024-11-20 17:14:18,619 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 96 flow. Second operand 4 states and 92 transitions. [2024-11-20 17:14:18,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 238 flow [2024-11-20 17:14:18,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:14:18,622 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 102 flow [2024-11-20 17:14:18,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2024-11-20 17:14:18,623 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2024-11-20 17:14:18,623 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 102 flow [2024-11-20 17:14:18,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-20 17:14:18,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:18,624 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:18,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:14:18,624 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:18,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:18,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2003875104, now seen corresponding path program 1 times [2024-11-20 17:14:18,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:14:18,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090379683] [2024-11-20 17:14:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:18,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:14:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:18,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:18,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:14:18,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090379683] [2024-11-20 17:14:18,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090379683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:18,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:18,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:14:18,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357718981] [2024-11-20 17:14:18,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:18,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:14:18,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:14:18,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:14:18,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:14:18,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-20 17:14:18,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-20 17:14:18,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:18,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-20 17:14:18,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:18,851 INFO L124 PetriNetUnfolderBase]: 341/666 cut-off events. [2024-11-20 17:14:18,851 INFO L125 PetriNetUnfolderBase]: For 213/213 co-relation queries the response was YES. [2024-11-20 17:14:18,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 666 events. 341/666 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3000 event pairs, 91 based on Foata normal form. 4/666 useless extension candidates. Maximal degree in co-relation 508. Up to 316 conditions per place. [2024-11-20 17:14:18,856 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 43 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2024-11-20 17:14:18,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 57 transitions, 261 flow [2024-11-20 17:14:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:14:18,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:14:18,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2024-11-20 17:14:18,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2024-11-20 17:14:18,858 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 102 flow. Second operand 4 states and 94 transitions. [2024-11-20 17:14:18,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 57 transitions, 261 flow [2024-11-20 17:14:18,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 57 transitions, 253 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 17:14:18,863 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 121 flow [2024-11-20 17:14:18,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2024-11-20 17:14:18,864 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-11-20 17:14:18,865 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 121 flow [2024-11-20 17:14:18,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-20 17:14:18,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:18,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:18,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:14:18,866 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:18,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:18,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1657223266, now seen corresponding path program 1 times [2024-11-20 17:14:18,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:14:18,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469776347] [2024-11-20 17:14:18,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:18,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:14:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:14:18,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:14:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:14:18,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 17:14:18,940 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:14:18,941 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-20 17:14:18,943 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-20 17:14:18,943 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-20 17:14:18,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-20 17:14:18,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-20 17:14:18,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-20 17:14:18,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:14:18,945 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-20 17:14:18,987 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:14:18,987 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:14:18,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:14:18 BasicIcfg [2024-11-20 17:14:18,991 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:14:18,992 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:14:18,992 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:14:18,992 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:14:18,993 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:17" (3/4) ... [2024-11-20 17:14:18,995 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 17:14:18,996 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:14:18,997 INFO L158 Benchmark]: Toolchain (without parser) took 3145.84ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 106.5MB in the beginning and 195.6MB in the end (delta: -89.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-11-20 17:14:18,997 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 176.2MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:14:18,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 650.86ms. Allocated memory is still 176.2MB. Free memory was 106.3MB in the beginning and 142.0MB in the end (delta: -35.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-20 17:14:18,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.83ms. Allocated memory is still 176.2MB. Free memory was 142.0MB in the beginning and 140.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:14:18,998 INFO L158 Benchmark]: Boogie Preprocessor took 41.99ms. Allocated memory is still 176.2MB. Free memory was 139.9MB in the beginning and 138.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:14:19,001 INFO L158 Benchmark]: RCFGBuilder took 535.86ms. Allocated memory is still 176.2MB. Free memory was 137.8MB in the beginning and 114.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-20 17:14:19,002 INFO L158 Benchmark]: TraceAbstraction took 1858.33ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 114.1MB in the beginning and 196.7MB in the end (delta: -82.6MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-11-20 17:14:19,002 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 274.7MB. Free memory is still 195.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:14:19,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 176.2MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 650.86ms. Allocated memory is still 176.2MB. Free memory was 106.3MB in the beginning and 142.0MB in the end (delta: -35.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.83ms. Allocated memory is still 176.2MB. Free memory was 142.0MB in the beginning and 140.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.99ms. Allocated memory is still 176.2MB. Free memory was 139.9MB in the beginning and 138.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 535.86ms. Allocated memory is still 176.2MB. Free memory was 137.8MB in the beginning and 114.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1858.33ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 114.1MB in the beginning and 196.7MB in the end (delta: -82.6MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 274.7MB. Free memory is still 195.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 20. Possible FailurePath: [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data=0, mutex={3:0}, t1=-1] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-1, t2=0] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-1, t2=0, t3=1] [L707] 1 data++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=1, mutex={3:0}] [L714] 2 data+=2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] COND TRUE 3 data >= 3 [L722] CALL 3 reach_error() [L20] COND FALSE 3 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L20] 3 __assert_fail ("0", "lazy01.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 728]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 732]: 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: 734]: 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: 733]: 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 7 procedures, 63 locations, 6 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: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 0.4s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2024-11-20 17:14:19,025 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/pthread/lazy01.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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:14:21,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:14:21,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 17:14:21,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:14:21,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:14:21,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:14:21,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:14:21,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:14:21,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:14:21,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:14:21,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:14:21,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:14:21,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:14:21,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:14:21,443 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:14:21,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:14:21,445 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:14:21,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:14:21,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:14:21,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:14:21,446 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:14:21,447 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:14:21,447 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:14:21,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:14:21,448 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:14:21,448 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 17:14:21,448 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:14:21,449 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 17:14:21,449 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:14:21,449 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:14:21,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:14:21,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:14:21,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:14:21,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:14:21,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:14:21,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:14:21,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:14:21,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:14:21,451 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 17:14:21,452 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 17:14:21,452 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:14:21,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:14:21,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:14:21,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:14:21,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2024-11-20 17:14:21,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:14:21,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:14:21,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:14:21,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:14:21,818 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:14:21,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2024-11-20 17:14:23,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:14:23,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:14:23,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2024-11-20 17:14:23,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a8d6a42/ab68363732be4e8089c34bf438e71fe0/FLAGebe60a0e2 [2024-11-20 17:14:23,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a8d6a42/ab68363732be4e8089c34bf438e71fe0 [2024-11-20 17:14:23,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:14:23,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:14:23,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:14:23,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:14:23,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:14:23,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:23" (1/1) ... [2024-11-20 17:14:23,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7e1c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:23, skipping insertion in model container [2024-11-20 17:14:23,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:23" (1/1) ... [2024-11-20 17:14:23,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:14:24,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:14:24,130 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:14:24,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:14:24,244 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:14:24,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24 WrapperNode [2024-11-20 17:14:24,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:14:24,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:14:24,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:14:24,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:14:24,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,303 INFO L138 Inliner]: procedures = 173, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-20 17:14:24,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:14:24,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:14:24,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:14:24,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:14:24,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,323 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,346 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]. [2024-11-20 17:14:24,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:14:24,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:14:24,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:14:24,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:14:24,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (1/1) ... [2024-11-20 17:14:24,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:14:24,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:14:24,397 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) [2024-11-20 17:14:24,402 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 [2024-11-20 17:14:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 17:14:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 17:14:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 17:14:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 17:14:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 17:14:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 17:14:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 17:14:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:14:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 17:14:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-20 17:14:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-20 17:14:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-20 17:14:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 17:14:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:14:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:14:24,450 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:14:24,613 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:14:24,616 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:14:24,787 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:14:24,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:14:24,945 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:14:24,945 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:14:24,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:24 BoogieIcfgContainer [2024-11-20 17:14:24,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:14:24,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:14:24,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:14:24,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:14:24,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:14:23" (1/3) ... [2024-11-20 17:14:24,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50452510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:24, skipping insertion in model container [2024-11-20 17:14:24,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:24" (2/3) ... [2024-11-20 17:14:24,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50452510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:24, skipping insertion in model container [2024-11-20 17:14:24,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:24" (3/3) ... [2024-11-20 17:14:24,959 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2024-11-20 17:14:24,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:14:24,978 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 17:14:24,978 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:14:25,042 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 17:14:25,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 38 transitions, 97 flow [2024-11-20 17:14:25,121 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-20 17:14:25,122 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 17:14:25,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 35 events. 2/35 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-20 17:14:25,126 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 38 transitions, 97 flow [2024-11-20 17:14:25,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 34 transitions, 86 flow [2024-11-20 17:14:25,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:14:25,150 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;@60215699, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:14:25,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-20 17:14:25,169 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:14:25,172 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-11-20 17:14:25,173 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 17:14:25,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:25,174 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:25,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:25,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:25,183 INFO L85 PathProgramCache]: Analyzing trace with hash -252257762, now seen corresponding path program 1 times [2024-11-20 17:14:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:14:25,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311708599] [2024-11-20 17:14:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:25,199 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 [2024-11-20 17:14:25,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:14:25,200 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) [2024-11-20 17:14:25,221 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 [2024-11-20 17:14:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:25,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 17:14:25,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:14:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:25,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:14:25,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:14:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311708599] [2024-11-20 17:14:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311708599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:25,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:25,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:14:25,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181751641] [2024-11-20 17:14:25,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:25,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:14:25,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:14:25,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:14:25,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:14:25,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-20 17:14:25,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-20 17:14:25,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:25,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-20 17:14:25,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:25,700 INFO L124 PetriNetUnfolderBase]: 588/1023 cut-off events. [2024-11-20 17:14:25,701 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-20 17:14:25,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1023 events. 588/1023 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5390 event pairs, 178 based on Foata normal form. 95/1096 useless extension candidates. Maximal degree in co-relation 1849. Up to 827 conditions per place. [2024-11-20 17:14:25,714 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 31 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2024-11-20 17:14:25,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 178 flow [2024-11-20 17:14:25,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:14:25,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:14:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-20 17:14:25,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6403508771929824 [2024-11-20 17:14:25,728 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 86 flow. Second operand 3 states and 73 transitions. [2024-11-20 17:14:25,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 178 flow [2024-11-20 17:14:25,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 162 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-20 17:14:25,737 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 87 flow [2024-11-20 17:14:25,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2024-11-20 17:14:25,744 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, -4 predicate places. [2024-11-20 17:14:25,744 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 87 flow [2024-11-20 17:14:25,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-20 17:14:25,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:25,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:25,749 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 [2024-11-20 17:14:25,947 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 [2024-11-20 17:14:25,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:25,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:25,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1501736296, now seen corresponding path program 1 times [2024-11-20 17:14:25,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:14:25,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836576706] [2024-11-20 17:14:25,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:25,950 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 [2024-11-20 17:14:25,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:14:25,953 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) [2024-11-20 17:14:25,954 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 [2024-11-20 17:14:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:26,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:14:26,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:14:26,103 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 [2024-11-20 17:14:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:26,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:14:26,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:14:26,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836576706] [2024-11-20 17:14:26,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836576706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:26,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:26,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:14:26,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780678421] [2024-11-20 17:14:26,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:26,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:14:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:14:26,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:14:26,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:14:26,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-20 17:14:26,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-20 17:14:26,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:26,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-20 17:14:26,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:26,301 INFO L124 PetriNetUnfolderBase]: 303/636 cut-off events. [2024-11-20 17:14:26,301 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 17:14:26,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 636 events. 303/636 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3033 event pairs, 108 based on Foata normal form. 80/709 useless extension candidates. Maximal degree in co-relation 734. Up to 327 conditions per place. [2024-11-20 17:14:26,308 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 28 selfloop transitions, 6 changer transitions 0/43 dead transitions. [2024-11-20 17:14:26,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 179 flow [2024-11-20 17:14:26,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:14:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:14:26,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-20 17:14:26,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6228070175438597 [2024-11-20 17:14:26,312 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 87 flow. Second operand 3 states and 71 transitions. [2024-11-20 17:14:26,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 179 flow [2024-11-20 17:14:26,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:14:26,315 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 96 flow [2024-11-20 17:14:26,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2024-11-20 17:14:26,316 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-11-20 17:14:26,316 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 96 flow [2024-11-20 17:14:26,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-20 17:14:26,316 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:26,317 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:26,325 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 [2024-11-20 17:14:26,517 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 [2024-11-20 17:14:26,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:26,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:26,519 INFO L85 PathProgramCache]: Analyzing trace with hash 50888544, now seen corresponding path program 1 times [2024-11-20 17:14:26,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:14:26,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602515836] [2024-11-20 17:14:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:26,520 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 [2024-11-20 17:14:26,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:14:26,523 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) [2024-11-20 17:14:26,524 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 [2024-11-20 17:14:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:26,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:14:26,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:14:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:26,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:14:26,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:14:26,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602515836] [2024-11-20 17:14:26,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602515836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:26,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:26,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:14:26,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431695313] [2024-11-20 17:14:26,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:26,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:14:26,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:14:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:14:26,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:14:26,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-20 17:14:26,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-20 17:14:26,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:26,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-20 17:14:26,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:26,818 INFO L124 PetriNetUnfolderBase]: 298/607 cut-off events. [2024-11-20 17:14:26,819 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-20 17:14:26,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 607 events. 298/607 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2839 event pairs, 65 based on Foata normal form. 5/606 useless extension candidates. Maximal degree in co-relation 255. Up to 363 conditions per place. [2024-11-20 17:14:26,824 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 39 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-11-20 17:14:26,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 238 flow [2024-11-20 17:14:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:14:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:14:26,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-11-20 17:14:26,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6052631578947368 [2024-11-20 17:14:26,829 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 96 flow. Second operand 4 states and 92 transitions. [2024-11-20 17:14:26,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 238 flow [2024-11-20 17:14:26,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:14:26,832 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 102 flow [2024-11-20 17:14:26,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2024-11-20 17:14:26,834 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2024-11-20 17:14:26,835 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 102 flow [2024-11-20 17:14:26,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-20 17:14:26,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:26,835 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:26,840 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 [2024-11-20 17:14:27,038 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 [2024-11-20 17:14:27,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:27,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash 376108832, now seen corresponding path program 1 times [2024-11-20 17:14:27,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:14:27,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127934930] [2024-11-20 17:14:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:27,041 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 [2024-11-20 17:14:27,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:14:27,044 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2024-11-20 17:14:27,045 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 (5)] Waiting until timeout for monitored process [2024-11-20 17:14:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:14:27,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:14:27,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:14:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:14:27,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:14:27,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:14:27,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127934930] [2024-11-20 17:14:27,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127934930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:14:27,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:14:27,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:14:27,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570806822] [2024-11-20 17:14:27,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:14:27,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:14:27,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:14:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:14:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:14:27,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-20 17:14:27,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-20 17:14:27,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:14:27,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-20 17:14:27,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:14:27,295 INFO L124 PetriNetUnfolderBase]: 294/567 cut-off events. [2024-11-20 17:14:27,295 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-20 17:14:27,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 567 events. 294/567 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2527 event pairs, 100 based on Foata normal form. 4/561 useless extension candidates. Maximal degree in co-relation 491. Up to 381 conditions per place. [2024-11-20 17:14:27,298 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 38 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-11-20 17:14:27,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 51 transitions, 232 flow [2024-11-20 17:14:27,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:14:27,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:14:27,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-20 17:14:27,300 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5986842105263158 [2024-11-20 17:14:27,300 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 102 flow. Second operand 4 states and 91 transitions. [2024-11-20 17:14:27,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 51 transitions, 232 flow [2024-11-20 17:14:27,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 224 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 17:14:27,303 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 106 flow [2024-11-20 17:14:27,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2024-11-20 17:14:27,304 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2024-11-20 17:14:27,304 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 106 flow [2024-11-20 17:14:27,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-20 17:14:27,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:14:27,305 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:14:27,310 INFO L540 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 (5)] Forceful destruction successful, exit code 0 [2024-11-20 17:14:27,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 [2024-11-20 17:14:27,506 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:14:27,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:14:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1764660510, now seen corresponding path program 1 times [2024-11-20 17:14:27,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:14:27,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776293123] [2024-11-20 17:14:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:14:27,507 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 [2024-11-20 17:14:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:14:27,508 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2024-11-20 17:14:27,509 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 (6)] Waiting until timeout for monitored process [2024-11-20 17:14:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:14:27,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:14:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:14:27,657 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-20 17:14:27,657 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:14:27,658 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-20 17:14:27,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-20 17:14:27,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-20 17:14:27,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-20 17:14:27,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-20 17:14:27,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-20 17:14:27,666 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 (6)] Ended with exit code 0 [2024-11-20 17:14:27,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2024-11-20 17:14:27,862 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-20 17:14:27,913 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:14:27,915 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:14:27,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:14:27 BasicIcfg [2024-11-20 17:14:27,921 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:14:27,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:14:27,922 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:14:27,922 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:14:27,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:24" (3/4) ... [2024-11-20 17:14:27,925 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 17:14:27,926 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:14:27,927 INFO L158 Benchmark]: Toolchain (without parser) took 4265.63ms. Allocated memory was 69.2MB in the beginning and 113.2MB in the end (delta: 44.0MB). Free memory was 49.9MB in the beginning and 66.5MB in the end (delta: -16.7MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-11-20 17:14:27,927 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 48.2MB. Free memory is still 25.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:14:27,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.14ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 46.4MB in the end (delta: 3.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-11-20 17:14:27,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.91ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 44.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:14:27,931 INFO L158 Benchmark]: Boogie Preprocessor took 56.42ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 42.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:14:27,932 INFO L158 Benchmark]: RCFGBuilder took 582.89ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 42.0MB in the beginning and 55.0MB in the end (delta: -13.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-20 17:14:27,932 INFO L158 Benchmark]: TraceAbstraction took 2970.88ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.9MB in the beginning and 67.6MB in the end (delta: -13.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-11-20 17:14:27,932 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 113.2MB. Free memory was 67.6MB in the beginning and 66.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:14:27,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 48.2MB. Free memory is still 25.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.14ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 46.4MB in the end (delta: 3.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.91ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 44.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.42ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 42.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.89ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 42.0MB in the beginning and 55.0MB in the end (delta: -13.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2970.88ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.9MB in the beginning and 67.6MB in the end (delta: -13.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 113.2MB. Free memory was 67.6MB in the beginning and 66.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 20. Possible FailurePath: [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data=0, mutex={3:0}, t1=-1] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-1, t2=0] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-1, t2=0, t3=1] [L707] 1 data++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=1, mutex={3:0}] [L714] 2 data+=2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] COND TRUE 3 data >= 3 [L722] CALL 3 reach_error() [L20] COND FALSE 3 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L20] 3 __assert_fail ("0", "lazy01.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 728]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 732]: 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: 734]: 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: 733]: 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 7 procedures, 63 locations, 6 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 14, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2024-11-20 17:14:27,961 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