./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d 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/weaver/parallel-bluetooth.wvr.c -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 673666cb71096405cc13bacc98be08aac7026343d1cf8127c7ee9fffc801c83e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:38:40,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:38:41,048 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:38:41,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:38:41,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:38:41,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:38:41,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:38:41,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:38:41,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:38:41,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:38:41,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:38:41,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:38:41,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:38:41,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:38:41,076 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:38:41,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:38:41,077 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:38:41,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:38:41,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:38:41,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:38:41,079 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:38:41,079 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:38:41,080 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:38:41,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:38:41,081 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:38:41,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:38:41,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:38:41,082 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:38:41,082 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:38:41,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:38:41,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:38:41,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:38:41,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:38:41,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:38:41,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:38:41,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:38:41,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:38:41,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:38:41,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:38:41,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:38:41,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:38:41,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:38:41,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 673666cb71096405cc13bacc98be08aac7026343d1cf8127c7ee9fffc801c83e [2024-10-13 12:38:41,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:38:41,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:38:41,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:38:41,421 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:38:41,421 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:38:41,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-10-13 12:38:43,106 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:38:43,273 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:38:43,274 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-10-13 12:38:43,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87083c4c/aea27fa6e02443baadf69a42d225ae65/FLAGb8786d39c [2024-10-13 12:38:43,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87083c4c/aea27fa6e02443baadf69a42d225ae65 [2024-10-13 12:38:43,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:38:43,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:38:43,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:38:43,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:38:43,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:38:43,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:43,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e1033c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43, skipping insertion in model container [2024-10-13 12:38:43,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:43,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:38:43,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:38:43,702 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:38:43,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:38:43,798 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:38:43,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43 WrapperNode [2024-10-13 12:38:43,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:38:43,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:38:43,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:38:43,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:38:43,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:43,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:43,931 INFO L138 Inliner]: procedures = 20, calls = 39, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 119 [2024-10-13 12:38:43,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:38:43,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:38:43,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:38:43,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:38:43,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:43,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:43,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,005 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 12:38:44,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:38:44,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:38:44,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:38:44,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:38:44,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (1/1) ... [2024-10-13 12:38:44,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:38:44,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:38:44,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:38:44,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:38:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:38:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 12:38:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 12:38:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 12:38:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 12:38:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:38:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:38:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:38:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:38:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:38:44,171 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:38:44,264 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:38:44,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:38:44,517 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:38:44,517 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:38:44,684 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:38:44,685 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:38:44,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:44 BoogieIcfgContainer [2024-10-13 12:38:44,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:38:44,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:38:44,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:38:44,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:38:44,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:38:43" (1/3) ... [2024-10-13 12:38:44,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e97ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:38:44, skipping insertion in model container [2024-10-13 12:38:44,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:43" (2/3) ... [2024-10-13 12:38:44,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e97ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:38:44, skipping insertion in model container [2024-10-13 12:38:44,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:44" (3/3) ... [2024-10-13 12:38:44,692 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2024-10-13 12:38:44,706 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:38:44,707 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:38:44,707 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:38:44,745 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 12:38:44,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 80 flow [2024-10-13 12:38:44,794 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2024-10-13 12:38:44,794 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 12:38:44,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 2/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2024-10-13 12:38:44,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 33 transitions, 80 flow [2024-10-13 12:38:44,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 72 flow [2024-10-13 12:38:44,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:38:44,812 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;@6f43224c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:38:44,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-13 12:38:44,831 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:38:44,832 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 12:38:44,832 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 12:38:44,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:38:44,834 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, 1, 1, 1, 1] [2024-10-13 12:38:44,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:38:44,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:38:44,853 INFO L85 PathProgramCache]: Analyzing trace with hash -503285303, now seen corresponding path program 1 times [2024-10-13 12:38:44,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:38:44,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257508098] [2024-10-13 12:38:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:38:44,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:38:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:38:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:38:45,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:38:45,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257508098] [2024-10-13 12:38:45,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257508098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:38:45,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:38:45,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:38:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499002458] [2024-10-13 12:38:45,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:38:45,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:38:45,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:38:45,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:38:45,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:38:45,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 33 [2024-10-13 12:38:45,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:38:45,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:38:45,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 33 [2024-10-13 12:38:45,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:38:45,608 INFO L124 PetriNetUnfolderBase]: 107/248 cut-off events. [2024-10-13 12:38:45,612 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-13 12:38:45,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 248 events. 107/248 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1054 event pairs, 37 based on Foata normal form. 9/231 useless extension candidates. Maximal degree in co-relation 412. Up to 131 conditions per place. [2024-10-13 12:38:45,660 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 25 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2024-10-13 12:38:45,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 152 flow [2024-10-13 12:38:45,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:38:45,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:38:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-10-13 12:38:45,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-10-13 12:38:45,699 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 72 flow. Second operand 3 states and 72 transitions. [2024-10-13 12:38:45,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 152 flow [2024-10-13 12:38:45,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 39 transitions, 140 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:38:45,713 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 79 flow [2024-10-13 12:38:45,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2024-10-13 12:38:45,723 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2024-10-13 12:38:45,723 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 79 flow [2024-10-13 12:38:45,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:38:45,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:38:45,724 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, 1, 1, 1, 1, 1] [2024-10-13 12:38:45,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:38:45,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:38:45,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:38:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1624639613, now seen corresponding path program 1 times [2024-10-13 12:38:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:38:45,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338603510] [2024-10-13 12:38:45,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:38:45,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:38:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:38:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:38:46,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:38:46,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338603510] [2024-10-13 12:38:46,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338603510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:38:46,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:38:46,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:38:46,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873958601] [2024-10-13 12:38:46,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:38:46,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:38:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:38:46,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:38:46,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:38:46,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 33 [2024-10-13 12:38:46,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:38:46,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:38:46,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 33 [2024-10-13 12:38:46,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:38:46,461 INFO L124 PetriNetUnfolderBase]: 122/301 cut-off events. [2024-10-13 12:38:46,466 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-13 12:38:46,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 301 events. 122/301 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1343 event pairs, 69 based on Foata normal form. 1/270 useless extension candidates. Maximal degree in co-relation 216. Up to 143 conditions per place. [2024-10-13 12:38:46,469 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 17 selfloop transitions, 3 changer transitions 10/41 dead transitions. [2024-10-13 12:38:46,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 160 flow [2024-10-13 12:38:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:38:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:38:46,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-10-13 12:38:46,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2024-10-13 12:38:46,475 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 79 flow. Second operand 4 states and 85 transitions. [2024-10-13 12:38:46,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 160 flow [2024-10-13 12:38:46,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 157 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:38:46,476 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 78 flow [2024-10-13 12:38:46,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-10-13 12:38:46,478 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2024-10-13 12:38:46,478 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 78 flow [2024-10-13 12:38:46,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:38:46,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:38:46,482 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, 1, 1, 1, 1, 1] [2024-10-13 12:38:46,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:38:46,483 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:38:46,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:38:46,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1870940982, now seen corresponding path program 1 times [2024-10-13 12:38:46,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:38:46,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629771806] [2024-10-13 12:38:46,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:38:46,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:38:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:38:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:38:46,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:38:46,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629771806] [2024-10-13 12:38:46,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629771806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:38:46,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:38:46,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:38:46,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057702772] [2024-10-13 12:38:46,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:38:46,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:38:46,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:38:46,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:38:46,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:38:46,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2024-10-13 12:38:46,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:38:46,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:38:46,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2024-10-13 12:38:46,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:38:46,881 INFO L124 PetriNetUnfolderBase]: 22/76 cut-off events. [2024-10-13 12:38:46,882 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 12:38:46,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 76 events. 22/76 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 143 event pairs, 7 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 54. Up to 43 conditions per place. [2024-10-13 12:38:46,886 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2024-10-13 12:38:46,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 106 flow [2024-10-13 12:38:46,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:38:46,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:38:46,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2024-10-13 12:38:46,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-10-13 12:38:46,888 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 78 flow. Second operand 4 states and 77 transitions. [2024-10-13 12:38:46,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 106 flow [2024-10-13 12:38:46,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 96 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-13 12:38:46,888 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2024-10-13 12:38:46,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2024-10-13 12:38:46,889 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2024-10-13 12:38:46,889 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2024-10-13 12:38:46,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:38:46,915 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-13 12:38:46,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-13 12:38:46,918 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-13 12:38:46,918 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-13 12:38:46,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:38:46,919 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 12:38:46,926 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 12:38:46,929 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:38:46,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:38:46 BasicIcfg [2024-10-13 12:38:46,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:38:46,947 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:38:46,947 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:38:46,947 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:38:46,947 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:44" (3/4) ... [2024-10-13 12:38:46,949 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:38:46,960 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 12:38:46,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 12:38:46,971 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2024-10-13 12:38:46,978 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-13 12:38:46,978 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-13 12:38:46,979 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 12:38:47,151 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:38:47,152 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:38:47,152 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:38:47,153 INFO L158 Benchmark]: Toolchain (without parser) took 3853.67ms. Allocated memory was 144.7MB in the beginning and 232.8MB in the end (delta: 88.1MB). Free memory was 76.0MB in the beginning and 191.6MB in the end (delta: -115.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:38:47,155 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:38:47,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.95ms. Allocated memory was 144.7MB in the beginning and 232.8MB in the end (delta: 88.1MB). Free memory was 75.9MB in the beginning and 198.1MB in the end (delta: -122.3MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-10-13 12:38:47,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.71ms. Allocated memory is still 232.8MB. Free memory was 198.1MB in the beginning and 201.0MB in the end (delta: -3.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-10-13 12:38:47,156 INFO L158 Benchmark]: Boogie Preprocessor took 113.36ms. Allocated memory is still 232.8MB. Free memory was 201.0MB in the beginning and 198.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:38:47,159 INFO L158 Benchmark]: RCFGBuilder took 638.77ms. Allocated memory is still 232.8MB. Free memory was 198.9MB in the beginning and 157.0MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-13 12:38:47,159 INFO L158 Benchmark]: TraceAbstraction took 2258.92ms. Allocated memory is still 232.8MB. Free memory was 157.0MB in the beginning and 197.8MB in the end (delta: -40.8MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2024-10-13 12:38:47,160 INFO L158 Benchmark]: Witness Printer took 205.31ms. Allocated memory is still 232.8MB. Free memory was 197.8MB in the beginning and 191.6MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 12:38:47,163 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.95ms. Allocated memory was 144.7MB in the beginning and 232.8MB in the end (delta: 88.1MB). Free memory was 75.9MB in the beginning and 198.1MB in the end (delta: -122.3MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.71ms. Allocated memory is still 232.8MB. Free memory was 198.1MB in the beginning and 201.0MB in the end (delta: -3.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.36ms. Allocated memory is still 232.8MB. Free memory was 201.0MB in the beginning and 198.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.77ms. Allocated memory is still 232.8MB. Free memory was 198.9MB in the beginning and 157.0MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2258.92ms. Allocated memory is still 232.8MB. Free memory was 157.0MB in the beginning and 197.8MB in the end (delta: -40.8MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. * Witness Printer took 205.31ms. Allocated memory is still 232.8MB. Free memory was 197.8MB in the beginning and 191.6MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 90]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 7 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 12:38:47,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE