./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/test-easy11.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 d4ad0d0809306a534b821bfb65370b6441b48266d0d86b4699760a422c08b963 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:02:52,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:02:52,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 20:02:52,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:02:52,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:02:52,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:02:52,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:02:52,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:02:52,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:02:52,882 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:02:52,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:02:52,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:02:52,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:02:52,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:02:52,886 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:02:52,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:02:52,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:02:52,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:02:52,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:02:52,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:02:52,888 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 20:02:52,888 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 20:02:52,888 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 20:02:52,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:02:52,889 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 20:02:52,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:02:52,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:02:52,889 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:02:52,889 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:02:52,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:02:52,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:02:52,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:02:52,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:02:52,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:02:52,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:02:52,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:02:52,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:02:52,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:02:52,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:02:52,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:02:52,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:02:52,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:02:52,894 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4ad0d0809306a534b821bfb65370b6441b48266d0d86b4699760a422c08b963 [2024-10-11 20:02:53,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:02:53,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:02:53,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:02:53,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:02:53,199 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:02:53,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-10-11 20:02:54,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:02:54,737 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:02:54,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-10-11 20:02:54,747 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/974bac689/c7d86410e6be461590615c8733722136/FLAGb06c73d2d [2024-10-11 20:02:55,150 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/974bac689/c7d86410e6be461590615c8733722136 [2024-10-11 20:02:55,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:02:55,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:02:55,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:02:55,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:02:55,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:02:55,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111f212d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55, skipping insertion in model container [2024-10-11 20:02:55,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:02:55,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:02:55,368 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:02:55,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:02:55,409 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:02:55,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55 WrapperNode [2024-10-11 20:02:55,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:02:55,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:02:55,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:02:55,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:02:55,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,443 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2024-10-11 20:02:55,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:02:55,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:02:55,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:02:55,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:02:55,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,483 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]. [2024-10-11 20:02:55,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,492 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:02:55,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:02:55,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:02:55,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:02:55,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (1/1) ... [2024-10-11 20:02:55,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:02:55,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:02:55,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:02:55,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:02:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:02:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 20:02:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 20:02:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 20:02:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 20:02:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 20:02:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 20:02:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 20:02:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:02:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:02:55,571 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 20:02:55,640 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:02:55,642 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:02:55,773 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 20:02:55,773 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:02:55,897 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:02:55,897 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 20:02:55,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:02:55 BoogieIcfgContainer [2024-10-11 20:02:55,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:02:55,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:02:55,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:02:55,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:02:55,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:02:55" (1/3) ... [2024-10-11 20:02:55,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfc05c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:02:55, skipping insertion in model container [2024-10-11 20:02:55,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:55" (2/3) ... [2024-10-11 20:02:55,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfc05c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:02:55, skipping insertion in model container [2024-10-11 20:02:55,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:02:55" (3/3) ... [2024-10-11 20:02:55,906 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2024-10-11 20:02:55,923 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:02:55,923 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 20:02:55,923 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 20:02:55,960 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 20:02:55,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 24 transitions, 62 flow [2024-10-11 20:02:56,019 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-10-11 20:02:56,020 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 20:02:56,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 2/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2024-10-11 20:02:56,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 24 transitions, 62 flow [2024-10-11 20:02:56,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2024-10-11 20:02:56,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:02:56,048 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;@5577444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:02:56,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 20:02:56,063 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 20:02:56,063 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-10-11 20:02:56,063 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 20:02:56,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:56,064 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:56,065 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)] === [2024-10-11 20:02:56,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:56,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1071131489, now seen corresponding path program 1 times [2024-10-11 20:02:56,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445998465] [2024-10-11 20:02:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:56,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:56,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445998465] [2024-10-11 20:02:56,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445998465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:56,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:56,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:56,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136552135] [2024-10-11 20:02:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:56,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:56,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:56,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:56,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:56,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:56,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:56,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:57,164 INFO L124 PetriNetUnfolderBase]: 111/201 cut-off events. [2024-10-11 20:02:57,165 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-11 20:02:57,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 201 events. 111/201 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 605 event pairs, 2 based on Foata normal form. 2/175 useless extension candidates. Maximal degree in co-relation 364. Up to 57 conditions per place. [2024-10-11 20:02:57,172 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 40 selfloop transitions, 10 changer transitions 10/61 dead transitions. [2024-10-11 20:02:57,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 61 transitions, 278 flow [2024-10-11 20:02:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:02:57,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:02:57,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 98 transitions. [2024-10-11 20:02:57,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2024-10-11 20:02:57,190 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 9 states and 98 transitions. [2024-10-11 20:02:57,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 61 transitions, 278 flow [2024-10-11 20:02:57,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 20:02:57,198 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 107 flow [2024-10-11 20:02:57,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=107, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2024-10-11 20:02:57,207 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2024-10-11 20:02:57,207 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 107 flow [2024-10-11 20:02:57,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:57,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:57,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:57,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:02:57,209 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)] === [2024-10-11 20:02:57,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:57,209 INFO L85 PathProgramCache]: Analyzing trace with hash 374310665, now seen corresponding path program 2 times [2024-10-11 20:02:57,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:57,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201243405] [2024-10-11 20:02:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:57,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:57,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:57,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201243405] [2024-10-11 20:02:57,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201243405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:57,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:57,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:57,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566607658] [2024-10-11 20:02:57,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:57,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:57,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:57,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:57,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:57,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 107 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:57,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:57,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:57,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:57,774 INFO L124 PetriNetUnfolderBase]: 114/208 cut-off events. [2024-10-11 20:02:57,775 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-11 20:02:57,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 208 events. 114/208 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 601 event pairs, 15 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 575. Up to 115 conditions per place. [2024-10-11 20:02:57,777 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 34 selfloop transitions, 14 changer transitions 10/59 dead transitions. [2024-10-11 20:02:57,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 336 flow [2024-10-11 20:02:57,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:02:57,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:02:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-10-11 20:02:57,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-10-11 20:02:57,782 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 107 flow. Second operand 9 states and 92 transitions. [2024-10-11 20:02:57,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 336 flow [2024-10-11 20:02:57,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 324 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-11 20:02:57,785 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 190 flow [2024-10-11 20:02:57,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2024-10-11 20:02:57,786 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 17 predicate places. [2024-10-11 20:02:57,786 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 190 flow [2024-10-11 20:02:57,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:57,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:57,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:57,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:02:57,787 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)] === [2024-10-11 20:02:57,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:57,788 INFO L85 PathProgramCache]: Analyzing trace with hash 123364783, now seen corresponding path program 3 times [2024-10-11 20:02:57,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:57,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550617232] [2024-10-11 20:02:57,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:57,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:57,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:57,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550617232] [2024-10-11 20:02:57,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550617232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:57,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:57,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986615813] [2024-10-11 20:02:57,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:57,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:57,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:57,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:57,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:57,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:57,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 190 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:57,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:57,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:57,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:58,234 INFO L124 PetriNetUnfolderBase]: 120/218 cut-off events. [2024-10-11 20:02:58,234 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2024-10-11 20:02:58,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 218 events. 120/218 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 673 event pairs, 11 based on Foata normal form. 1/219 useless extension candidates. Maximal degree in co-relation 698. Up to 119 conditions per place. [2024-10-11 20:02:58,237 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 39 selfloop transitions, 18 changer transitions 10/68 dead transitions. [2024-10-11 20:02:58,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 457 flow [2024-10-11 20:02:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:02:58,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:02:58,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-10-11 20:02:58,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-10-11 20:02:58,239 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 190 flow. Second operand 9 states and 96 transitions. [2024-10-11 20:02:58,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 68 transitions, 457 flow [2024-10-11 20:02:58,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 422 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-11 20:02:58,242 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 256 flow [2024-10-11 20:02:58,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=256, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-10-11 20:02:58,243 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-10-11 20:02:58,243 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 256 flow [2024-10-11 20:02:58,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:58,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:58,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:58,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 20:02:58,244 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:02:58,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:58,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1307526245, now seen corresponding path program 4 times [2024-10-11 20:02:58,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:58,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772301739] [2024-10-11 20:02:58,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:58,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:58,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:58,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772301739] [2024-10-11 20:02:58,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772301739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:58,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:58,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870741288] [2024-10-11 20:02:58,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:58,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:58,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:58,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:58,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:58,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:58,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 256 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:58,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:58,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:58,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:58,657 INFO L124 PetriNetUnfolderBase]: 141/249 cut-off events. [2024-10-11 20:02:58,657 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-10-11 20:02:58,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 249 events. 141/249 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 754 event pairs, 20 based on Foata normal form. 1/250 useless extension candidates. Maximal degree in co-relation 891. Up to 129 conditions per place. [2024-10-11 20:02:58,664 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 36 selfloop transitions, 26 changer transitions 10/73 dead transitions. [2024-10-11 20:02:58,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 576 flow [2024-10-11 20:02:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:02:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:02:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-11 20:02:58,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-11 20:02:58,667 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 256 flow. Second operand 9 states and 95 transitions. [2024-10-11 20:02:58,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 576 flow [2024-10-11 20:02:58,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 514 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 20:02:58,673 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 391 flow [2024-10-11 20:02:58,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=391, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-10-11 20:02:58,674 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 28 predicate places. [2024-10-11 20:02:58,674 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 391 flow [2024-10-11 20:02:58,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:58,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:58,674 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:58,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 20:02:58,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:02:58,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1126397875, now seen corresponding path program 5 times [2024-10-11 20:02:58,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:58,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433112947] [2024-10-11 20:02:58,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:58,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:58,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:58,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433112947] [2024-10-11 20:02:58,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433112947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:58,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:58,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:58,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811084330] [2024-10-11 20:02:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:58,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:58,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:58,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:58,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:58,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 391 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:58,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:58,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:58,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:59,076 INFO L124 PetriNetUnfolderBase]: 149/262 cut-off events. [2024-10-11 20:02:59,077 INFO L125 PetriNetUnfolderBase]: For 612/612 co-relation queries the response was YES. [2024-10-11 20:02:59,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 262 events. 149/262 cut-off events. For 612/612 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 847 event pairs, 10 based on Foata normal form. 1/263 useless extension candidates. Maximal degree in co-relation 1031. Up to 132 conditions per place. [2024-10-11 20:02:59,079 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 48 selfloop transitions, 25 changer transitions 10/84 dead transitions. [2024-10-11 20:02:59,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 84 transitions, 715 flow [2024-10-11 20:02:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:02:59,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:02:59,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 99 transitions. [2024-10-11 20:02:59,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-10-11 20:02:59,081 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 391 flow. Second operand 9 states and 99 transitions. [2024-10-11 20:02:59,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 84 transitions, 715 flow [2024-10-11 20:02:59,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 668 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-10-11 20:02:59,086 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 423 flow [2024-10-11 20:02:59,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=423, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2024-10-11 20:02:59,087 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 33 predicate places. [2024-10-11 20:02:59,087 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 423 flow [2024-10-11 20:02:59,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:59,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:59,088 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:59,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 20:02:59,088 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:02:59,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1895407655, now seen corresponding path program 6 times [2024-10-11 20:02:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952858392] [2024-10-11 20:02:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:59,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:59,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952858392] [2024-10-11 20:02:59,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952858392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:59,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:59,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:59,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160997261] [2024-10-11 20:02:59,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:59,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:59,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:59,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:59,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:59,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:59,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 423 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:59,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:59,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:59,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:59,446 INFO L124 PetriNetUnfolderBase]: 166/288 cut-off events. [2024-10-11 20:02:59,446 INFO L125 PetriNetUnfolderBase]: For 859/859 co-relation queries the response was YES. [2024-10-11 20:02:59,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1258 conditions, 288 events. 166/288 cut-off events. For 859/859 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 943 event pairs, 12 based on Foata normal form. 1/289 useless extension candidates. Maximal degree in co-relation 1236. Up to 149 conditions per place. [2024-10-11 20:02:59,449 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 33 changer transitions 9/86 dead transitions. [2024-10-11 20:02:59,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 86 transitions, 814 flow [2024-10-11 20:02:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:02:59,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:02:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-11 20:02:59,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-11 20:02:59,451 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 423 flow. Second operand 9 states and 95 transitions. [2024-10-11 20:02:59,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 86 transitions, 814 flow [2024-10-11 20:02:59,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 86 transitions, 738 flow, removed 6 selfloop flow, removed 7 redundant places. [2024-10-11 20:02:59,456 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 588 flow [2024-10-11 20:02:59,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=588, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2024-10-11 20:02:59,458 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 37 predicate places. [2024-10-11 20:02:59,459 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 588 flow [2024-10-11 20:02:59,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:59,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:59,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:59,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 20:02:59,460 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:02:59,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:59,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1357983573, now seen corresponding path program 7 times [2024-10-11 20:02:59,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:59,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654689795] [2024-10-11 20:02:59,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:59,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:59,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:59,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654689795] [2024-10-11 20:02:59,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654689795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:59,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:59,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:59,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187385444] [2024-10-11 20:02:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:59,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:59,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:59,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:59,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:59,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 588 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:59,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:59,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:59,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:59,821 INFO L124 PetriNetUnfolderBase]: 164/286 cut-off events. [2024-10-11 20:02:59,821 INFO L125 PetriNetUnfolderBase]: For 1052/1052 co-relation queries the response was YES. [2024-10-11 20:02:59,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 286 events. 164/286 cut-off events. For 1052/1052 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 951 event pairs, 14 based on Foata normal form. 1/287 useless extension candidates. Maximal degree in co-relation 1317. Up to 147 conditions per place. [2024-10-11 20:02:59,825 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 51 selfloop transitions, 29 changer transitions 11/92 dead transitions. [2024-10-11 20:02:59,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 939 flow [2024-10-11 20:02:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:02:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:02:59,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-11 20:02:59,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-11 20:02:59,827 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 588 flow. Second operand 9 states and 94 transitions. [2024-10-11 20:02:59,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 939 flow [2024-10-11 20:02:59,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 92 transitions, 857 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-10-11 20:02:59,834 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 569 flow [2024-10-11 20:02:59,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=569, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2024-10-11 20:02:59,835 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 41 predicate places. [2024-10-11 20:02:59,835 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 569 flow [2024-10-11 20:02:59,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:59,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:59,836 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:59,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 20:02:59,836 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:02:59,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:59,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1232672397, now seen corresponding path program 8 times [2024-10-11 20:02:59,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:59,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440227805] [2024-10-11 20:02:59,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:59,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:59,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:59,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440227805] [2024-10-11 20:02:59,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440227805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:59,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:59,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:02:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161215032] [2024-10-11 20:02:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:59,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:02:59,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:02:59,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:02:59,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:02:59,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 569 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:02:59,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:59,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:02:59,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:00,220 INFO L124 PetriNetUnfolderBase]: 177/308 cut-off events. [2024-10-11 20:03:00,220 INFO L125 PetriNetUnfolderBase]: For 1088/1088 co-relation queries the response was YES. [2024-10-11 20:03:00,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 308 events. 177/308 cut-off events. For 1088/1088 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1050 event pairs, 12 based on Foata normal form. 1/309 useless extension candidates. Maximal degree in co-relation 1343. Up to 151 conditions per place. [2024-10-11 20:03:00,223 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 46 selfloop transitions, 34 changer transitions 10/91 dead transitions. [2024-10-11 20:03:00,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 894 flow [2024-10-11 20:03:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 100 transitions. [2024-10-11 20:03:00,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2024-10-11 20:03:00,225 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 569 flow. Second operand 9 states and 100 transitions. [2024-10-11 20:03:00,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 894 flow [2024-10-11 20:03:00,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 91 transitions, 830 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:00,230 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 634 flow [2024-10-11 20:03:00,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=634, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2024-10-11 20:03:00,231 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 42 predicate places. [2024-10-11 20:03:00,231 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 634 flow [2024-10-11 20:03:00,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:00,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:00,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:00,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 20:03:00,232 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:00,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:00,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1864329839, now seen corresponding path program 9 times [2024-10-11 20:03:00,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:00,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910018826] [2024-10-11 20:03:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:00,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:00,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:00,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910018826] [2024-10-11 20:03:00,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910018826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:00,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:00,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:00,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382471508] [2024-10-11 20:03:00,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:00,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:00,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:00,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:00,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:00,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:00,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 634 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:00,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:00,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:00,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:00,595 INFO L124 PetriNetUnfolderBase]: 171/301 cut-off events. [2024-10-11 20:03:00,596 INFO L125 PetriNetUnfolderBase]: For 1240/1240 co-relation queries the response was YES. [2024-10-11 20:03:00,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 301 events. 171/301 cut-off events. For 1240/1240 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1019 event pairs, 15 based on Foata normal form. 1/302 useless extension candidates. Maximal degree in co-relation 1382. Up to 165 conditions per place. [2024-10-11 20:03:00,598 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 45 selfloop transitions, 32 changer transitions 9/87 dead transitions. [2024-10-11 20:03:00,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 87 transitions, 906 flow [2024-10-11 20:03:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:00,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-11 20:03:00,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-11 20:03:00,600 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 634 flow. Second operand 9 states and 95 transitions. [2024-10-11 20:03:00,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 87 transitions, 906 flow [2024-10-11 20:03:00,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 87 transitions, 840 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-10-11 20:03:00,606 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 644 flow [2024-10-11 20:03:00,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=644, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2024-10-11 20:03:00,607 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 46 predicate places. [2024-10-11 20:03:00,607 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 644 flow [2024-10-11 20:03:00,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:00,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:00,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:00,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 20:03:00,608 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:00,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:00,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1812532241, now seen corresponding path program 10 times [2024-10-11 20:03:00,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:00,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129411710] [2024-10-11 20:03:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:00,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:00,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:00,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:00,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129411710] [2024-10-11 20:03:00,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129411710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:00,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:00,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:00,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790484283] [2024-10-11 20:03:00,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:00,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:00,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:00,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:00,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:00,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 644 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:00,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:00,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:00,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:00,955 INFO L124 PetriNetUnfolderBase]: 170/301 cut-off events. [2024-10-11 20:03:00,956 INFO L125 PetriNetUnfolderBase]: For 1192/1192 co-relation queries the response was YES. [2024-10-11 20:03:00,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 301 events. 170/301 cut-off events. For 1192/1192 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1037 event pairs, 15 based on Foata normal form. 1/302 useless extension candidates. Maximal degree in co-relation 1358. Up to 163 conditions per place. [2024-10-11 20:03:00,959 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 44 selfloop transitions, 30 changer transitions 12/87 dead transitions. [2024-10-11 20:03:00,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 87 transitions, 908 flow [2024-10-11 20:03:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:00,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-11 20:03:00,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-11 20:03:00,961 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 644 flow. Second operand 9 states and 95 transitions. [2024-10-11 20:03:00,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 87 transitions, 908 flow [2024-10-11 20:03:00,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 87 transitions, 838 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:00,978 INFO L231 Difference]: Finished difference. Result has 73 places, 63 transitions, 610 flow [2024-10-11 20:03:00,979 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=610, PETRI_PLACES=73, PETRI_TRANSITIONS=63} [2024-10-11 20:03:00,979 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 47 predicate places. [2024-10-11 20:03:00,979 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 63 transitions, 610 flow [2024-10-11 20:03:00,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:00,980 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:00,980 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:00,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 20:03:00,980 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:00,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1947205253, now seen corresponding path program 11 times [2024-10-11 20:03:00,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:00,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967776174] [2024-10-11 20:03:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:00,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:01,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:01,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967776174] [2024-10-11 20:03:01,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967776174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:01,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:01,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:01,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993240679] [2024-10-11 20:03:01,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:01,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:01,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:01,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:01,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:01,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:01,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 63 transitions, 610 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:01,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:01,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:01,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:01,315 INFO L124 PetriNetUnfolderBase]: 162/286 cut-off events. [2024-10-11 20:03:01,315 INFO L125 PetriNetUnfolderBase]: For 1124/1124 co-relation queries the response was YES. [2024-10-11 20:03:01,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 286 events. 162/286 cut-off events. For 1124/1124 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 956 event pairs, 14 based on Foata normal form. 1/287 useless extension candidates. Maximal degree in co-relation 1292. Up to 151 conditions per place. [2024-10-11 20:03:01,318 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 28 changer transitions 12/84 dead transitions. [2024-10-11 20:03:01,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 863 flow [2024-10-11 20:03:01,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-11 20:03:01,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-11 20:03:01,319 INFO L175 Difference]: Start difference. First operand has 73 places, 63 transitions, 610 flow. Second operand 9 states and 94 transitions. [2024-10-11 20:03:01,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 863 flow [2024-10-11 20:03:01,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 84 transitions, 797 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:01,326 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 568 flow [2024-10-11 20:03:01,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=568, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2024-10-11 20:03:01,327 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 45 predicate places. [2024-10-11 20:03:01,327 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 568 flow [2024-10-11 20:03:01,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:01,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:01,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:01,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 20:03:01,328 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:01,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:01,328 INFO L85 PathProgramCache]: Analyzing trace with hash -534132667, now seen corresponding path program 12 times [2024-10-11 20:03:01,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:01,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685388651] [2024-10-11 20:03:01,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:01,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:01,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:01,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685388651] [2024-10-11 20:03:01,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685388651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:01,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:01,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:01,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238379585] [2024-10-11 20:03:01,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:01,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:01,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:01,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:01,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:01,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:01,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 568 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:01,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:01,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:01,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:01,665 INFO L124 PetriNetUnfolderBase]: 166/291 cut-off events. [2024-10-11 20:03:01,666 INFO L125 PetriNetUnfolderBase]: For 1138/1138 co-relation queries the response was YES. [2024-10-11 20:03:01,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 291 events. 166/291 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 967 event pairs, 13 based on Foata normal form. 1/292 useless extension candidates. Maximal degree in co-relation 1288. Up to 153 conditions per place. [2024-10-11 20:03:01,668 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 45 selfloop transitions, 29 changer transitions 9/84 dead transitions. [2024-10-11 20:03:01,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 84 transitions, 840 flow [2024-10-11 20:03:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-11 20:03:01,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-11 20:03:01,670 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 568 flow. Second operand 9 states and 94 transitions. [2024-10-11 20:03:01,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 84 transitions, 840 flow [2024-10-11 20:03:01,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 778 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-11 20:03:01,675 INFO L231 Difference]: Finished difference. Result has 72 places, 61 transitions, 586 flow [2024-10-11 20:03:01,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=586, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2024-10-11 20:03:01,676 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 46 predicate places. [2024-10-11 20:03:01,676 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 586 flow [2024-10-11 20:03:01,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:01,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:01,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:01,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 20:03:01,676 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:01,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:01,677 INFO L85 PathProgramCache]: Analyzing trace with hash -772296443, now seen corresponding path program 13 times [2024-10-11 20:03:01,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:01,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893598479] [2024-10-11 20:03:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:01,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:01,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:01,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893598479] [2024-10-11 20:03:01,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893598479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:01,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:01,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193047707] [2024-10-11 20:03:01,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:01,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:01,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:01,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:01,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 61 transitions, 586 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:01,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:01,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:01,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:02,089 INFO L124 PetriNetUnfolderBase]: 163/289 cut-off events. [2024-10-11 20:03:02,089 INFO L125 PetriNetUnfolderBase]: For 1295/1295 co-relation queries the response was YES. [2024-10-11 20:03:02,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 289 events. 163/289 cut-off events. For 1295/1295 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 946 event pairs, 21 based on Foata normal form. 1/290 useless extension candidates. Maximal degree in co-relation 1294. Up to 157 conditions per place. [2024-10-11 20:03:02,092 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 30 changer transitions 10/84 dead transitions. [2024-10-11 20:03:02,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 84 transitions, 875 flow [2024-10-11 20:03:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:02,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-11 20:03:02,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-11 20:03:02,093 INFO L175 Difference]: Start difference. First operand has 72 places, 61 transitions, 586 flow. Second operand 9 states and 94 transitions. [2024-10-11 20:03:02,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 84 transitions, 875 flow [2024-10-11 20:03:02,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 803 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:02,099 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 620 flow [2024-10-11 20:03:02,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-10-11 20:03:02,099 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 49 predicate places. [2024-10-11 20:03:02,100 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 620 flow [2024-10-11 20:03:02,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:02,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:02,100 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:02,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 20:03:02,101 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:02,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:02,101 INFO L85 PathProgramCache]: Analyzing trace with hash -2104401479, now seen corresponding path program 14 times [2024-10-11 20:03:02,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:02,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963351546] [2024-10-11 20:03:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:02,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:02,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:02,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963351546] [2024-10-11 20:03:02,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963351546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:02,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:02,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:02,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42495975] [2024-10-11 20:03:02,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:02,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:02,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:02,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:02,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:02,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:02,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 620 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:02,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:02,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:02,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:02,436 INFO L124 PetriNetUnfolderBase]: 168/297 cut-off events. [2024-10-11 20:03:02,437 INFO L125 PetriNetUnfolderBase]: For 1356/1356 co-relation queries the response was YES. [2024-10-11 20:03:02,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 297 events. 168/297 cut-off events. For 1356/1356 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 988 event pairs, 12 based on Foata normal form. 1/298 useless extension candidates. Maximal degree in co-relation 1349. Up to 107 conditions per place. [2024-10-11 20:03:02,439 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 52 selfloop transitions, 26 changer transitions 9/88 dead transitions. [2024-10-11 20:03:02,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 88 transitions, 941 flow [2024-10-11 20:03:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2024-10-11 20:03:02,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-10-11 20:03:02,441 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 620 flow. Second operand 9 states and 90 transitions. [2024-10-11 20:03:02,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 88 transitions, 941 flow [2024-10-11 20:03:02,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 88 transitions, 890 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-11 20:03:02,447 INFO L231 Difference]: Finished difference. Result has 78 places, 64 transitions, 643 flow [2024-10-11 20:03:02,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=643, PETRI_PLACES=78, PETRI_TRANSITIONS=64} [2024-10-11 20:03:02,448 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 52 predicate places. [2024-10-11 20:03:02,448 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 64 transitions, 643 flow [2024-10-11 20:03:02,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:02,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:02,448 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:02,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 20:03:02,449 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:02,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:02,449 INFO L85 PathProgramCache]: Analyzing trace with hash 322513067, now seen corresponding path program 15 times [2024-10-11 20:03:02,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:02,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828722000] [2024-10-11 20:03:02,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:02,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:02,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:02,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:02,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828722000] [2024-10-11 20:03:02,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828722000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:02,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:02,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651345920] [2024-10-11 20:03:02,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:02,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:02,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:02,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:02,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:02,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:02,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 64 transitions, 643 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:02,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:02,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:02,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:02,778 INFO L124 PetriNetUnfolderBase]: 164/293 cut-off events. [2024-10-11 20:03:02,778 INFO L125 PetriNetUnfolderBase]: For 1473/1473 co-relation queries the response was YES. [2024-10-11 20:03:02,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 293 events. 164/293 cut-off events. For 1473/1473 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 975 event pairs, 20 based on Foata normal form. 1/294 useless extension candidates. Maximal degree in co-relation 1358. Up to 163 conditions per place. [2024-10-11 20:03:02,781 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 49 selfloop transitions, 24 changer transitions 11/85 dead transitions. [2024-10-11 20:03:02,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 942 flow [2024-10-11 20:03:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:02,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2024-10-11 20:03:02,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-10-11 20:03:02,783 INFO L175 Difference]: Start difference. First operand has 78 places, 64 transitions, 643 flow. Second operand 9 states and 90 transitions. [2024-10-11 20:03:02,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 942 flow [2024-10-11 20:03:02,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 859 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:02,789 INFO L231 Difference]: Finished difference. Result has 79 places, 62 transitions, 592 flow [2024-10-11 20:03:02,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=592, PETRI_PLACES=79, PETRI_TRANSITIONS=62} [2024-10-11 20:03:02,791 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 53 predicate places. [2024-10-11 20:03:02,791 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 62 transitions, 592 flow [2024-10-11 20:03:02,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:02,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:02,792 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:02,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 20:03:02,792 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:02,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2022059101, now seen corresponding path program 16 times [2024-10-11 20:03:02,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:02,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852283222] [2024-10-11 20:03:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:02,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:02,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:02,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852283222] [2024-10-11 20:03:02,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852283222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:02,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:02,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:02,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77527770] [2024-10-11 20:03:02,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:02,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:02,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:02,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:02,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:02,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:02,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 62 transitions, 592 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:02,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:02,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:02,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:03,150 INFO L124 PetriNetUnfolderBase]: 172/305 cut-off events. [2024-10-11 20:03:03,150 INFO L125 PetriNetUnfolderBase]: For 1365/1365 co-relation queries the response was YES. [2024-10-11 20:03:03,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 305 events. 172/305 cut-off events. For 1365/1365 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1022 event pairs, 22 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 1349. Up to 166 conditions per place. [2024-10-11 20:03:03,153 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 47 selfloop transitions, 28 changer transitions 10/86 dead transitions. [2024-10-11 20:03:03,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 886 flow [2024-10-11 20:03:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-10-11 20:03:03,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-10-11 20:03:03,154 INFO L175 Difference]: Start difference. First operand has 79 places, 62 transitions, 592 flow. Second operand 9 states and 96 transitions. [2024-10-11 20:03:03,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 886 flow [2024-10-11 20:03:03,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 86 transitions, 834 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:03,160 INFO L231 Difference]: Finished difference. Result has 79 places, 63 transitions, 618 flow [2024-10-11 20:03:03,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=618, PETRI_PLACES=79, PETRI_TRANSITIONS=63} [2024-10-11 20:03:03,161 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 53 predicate places. [2024-10-11 20:03:03,162 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 63 transitions, 618 flow [2024-10-11 20:03:03,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:03,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:03,162 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:03,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 20:03:03,162 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:03,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1359323843, now seen corresponding path program 17 times [2024-10-11 20:03:03,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:03,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81300758] [2024-10-11 20:03:03,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:03,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:03,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:03,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81300758] [2024-10-11 20:03:03,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81300758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:03,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:03,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:03,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984927762] [2024-10-11 20:03:03,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:03,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:03,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:03,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:03,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:03,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:03,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 63 transitions, 618 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:03,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:03,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:03,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:03,519 INFO L124 PetriNetUnfolderBase]: 166/298 cut-off events. [2024-10-11 20:03:03,519 INFO L125 PetriNetUnfolderBase]: For 1428/1428 co-relation queries the response was YES. [2024-10-11 20:03:03,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 298 events. 166/298 cut-off events. For 1428/1428 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 991 event pairs, 24 based on Foata normal form. 1/299 useless extension candidates. Maximal degree in co-relation 1344. Up to 171 conditions per place. [2024-10-11 20:03:03,522 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 44 selfloop transitions, 26 changer transitions 11/82 dead transitions. [2024-10-11 20:03:03,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 876 flow [2024-10-11 20:03:03,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:03,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-10-11 20:03:03,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-10-11 20:03:03,523 INFO L175 Difference]: Start difference. First operand has 79 places, 63 transitions, 618 flow. Second operand 9 states and 92 transitions. [2024-10-11 20:03:03,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 876 flow [2024-10-11 20:03:03,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 806 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:03,529 INFO L231 Difference]: Finished difference. Result has 80 places, 61 transitions, 579 flow [2024-10-11 20:03:03,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=579, PETRI_PLACES=80, PETRI_TRANSITIONS=61} [2024-10-11 20:03:03,529 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-10-11 20:03:03,530 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 61 transitions, 579 flow [2024-10-11 20:03:03,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:03,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:03,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:03,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 20:03:03,530 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:03,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:03,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2107027255, now seen corresponding path program 18 times [2024-10-11 20:03:03,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:03,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096785406] [2024-10-11 20:03:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:03,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:03,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:03,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096785406] [2024-10-11 20:03:03,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096785406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:03,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:03,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:03,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544719892] [2024-10-11 20:03:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:03,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:03,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:03,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 61 transitions, 579 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:03,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:03,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:03,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:03,852 INFO L124 PetriNetUnfolderBase]: 171/305 cut-off events. [2024-10-11 20:03:03,852 INFO L125 PetriNetUnfolderBase]: For 1444/1444 co-relation queries the response was YES. [2024-10-11 20:03:03,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 305 events. 171/305 cut-off events. For 1444/1444 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1029 event pairs, 24 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 1344. Up to 173 conditions per place. [2024-10-11 20:03:03,854 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 51 selfloop transitions, 24 changer transitions 9/85 dead transitions. [2024-10-11 20:03:03,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 903 flow [2024-10-11 20:03:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:03,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2024-10-11 20:03:03,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-10-11 20:03:03,855 INFO L175 Difference]: Start difference. First operand has 80 places, 61 transitions, 579 flow. Second operand 9 states and 91 transitions. [2024-10-11 20:03:03,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 903 flow [2024-10-11 20:03:03,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 843 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:03,861 INFO L231 Difference]: Finished difference. Result has 80 places, 62 transitions, 595 flow [2024-10-11 20:03:03,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=595, PETRI_PLACES=80, PETRI_TRANSITIONS=62} [2024-10-11 20:03:03,861 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-10-11 20:03:03,862 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 62 transitions, 595 flow [2024-10-11 20:03:03,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:03,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:03,862 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:03,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 20:03:03,862 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:03,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:03,863 INFO L85 PathProgramCache]: Analyzing trace with hash 506103131, now seen corresponding path program 19 times [2024-10-11 20:03:03,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:03,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803735127] [2024-10-11 20:03:03,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:03,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:03,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:03,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803735127] [2024-10-11 20:03:03,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803735127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:03,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:03,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:03,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738372215] [2024-10-11 20:03:03,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:03,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:03,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:03,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:03,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:03,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 62 transitions, 595 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:03,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:03,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:03,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:04,200 INFO L124 PetriNetUnfolderBase]: 179/321 cut-off events. [2024-10-11 20:03:04,200 INFO L125 PetriNetUnfolderBase]: For 1704/1704 co-relation queries the response was YES. [2024-10-11 20:03:04,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1468 conditions, 321 events. 179/321 cut-off events. For 1704/1704 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1122 event pairs, 20 based on Foata normal form. 1/322 useless extension candidates. Maximal degree in co-relation 1436. Up to 183 conditions per place. [2024-10-11 20:03:04,203 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 47 selfloop transitions, 28 changer transitions 9/85 dead transitions. [2024-10-11 20:03:04,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 900 flow [2024-10-11 20:03:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:04,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-11 20:03:04,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-11 20:03:04,204 INFO L175 Difference]: Start difference. First operand has 80 places, 62 transitions, 595 flow. Second operand 9 states and 94 transitions. [2024-10-11 20:03:04,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 900 flow [2024-10-11 20:03:04,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 830 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:04,210 INFO L231 Difference]: Finished difference. Result has 82 places, 64 transitions, 620 flow [2024-10-11 20:03:04,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=82, PETRI_TRANSITIONS=64} [2024-10-11 20:03:04,210 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 56 predicate places. [2024-10-11 20:03:04,211 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 64 transitions, 620 flow [2024-10-11 20:03:04,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:04,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:04,211 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:04,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 20:03:04,211 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:04,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:04,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1820902075, now seen corresponding path program 20 times [2024-10-11 20:03:04,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:04,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004838133] [2024-10-11 20:03:04,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:04,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:04,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:04,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004838133] [2024-10-11 20:03:04,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004838133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:04,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:04,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:03:04,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122421477] [2024-10-11 20:03:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:04,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:04,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:04,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:04,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:04,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:04,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 64 transitions, 620 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:04,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:04,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:04,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:04,584 INFO L124 PetriNetUnfolderBase]: 171/309 cut-off events. [2024-10-11 20:03:04,585 INFO L125 PetriNetUnfolderBase]: For 1742/1742 co-relation queries the response was YES. [2024-10-11 20:03:04,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 309 events. 171/309 cut-off events. For 1742/1742 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1065 event pairs, 23 based on Foata normal form. 1/310 useless extension candidates. Maximal degree in co-relation 1392. Up to 185 conditions per place. [2024-10-11 20:03:04,587 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 46 selfloop transitions, 24 changer transitions 11/82 dead transitions. [2024-10-11 20:03:04,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 82 transitions, 883 flow [2024-10-11 20:03:04,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2024-10-11 20:03:04,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-10-11 20:03:04,588 INFO L175 Difference]: Start difference. First operand has 82 places, 64 transitions, 620 flow. Second operand 9 states and 91 transitions. [2024-10-11 20:03:04,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 82 transitions, 883 flow [2024-10-11 20:03:04,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 82 transitions, 811 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:04,594 INFO L231 Difference]: Finished difference. Result has 82 places, 61 transitions, 566 flow [2024-10-11 20:03:04,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=566, PETRI_PLACES=82, PETRI_TRANSITIONS=61} [2024-10-11 20:03:04,595 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 56 predicate places. [2024-10-11 20:03:04,595 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 61 transitions, 566 flow [2024-10-11 20:03:04,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-10-11 20:03:04,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:04,595 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:04,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 20:03:04,596 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:04,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -741185840, now seen corresponding path program 1 times [2024-10-11 20:03:04,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:04,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400787350] [2024-10-11 20:03:04,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:04,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:04,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:04,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400787350] [2024-10-11 20:03:04,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400787350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:04,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:04,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:04,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660259823] [2024-10-11 20:03:04,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:04,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:04,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:04,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:04,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:04,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:04,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 61 transitions, 566 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:04,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:04,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:04,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:04,765 INFO L124 PetriNetUnfolderBase]: 212/412 cut-off events. [2024-10-11 20:03:04,766 INFO L125 PetriNetUnfolderBase]: For 2589/2591 co-relation queries the response was YES. [2024-10-11 20:03:04,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1920 conditions, 412 events. 212/412 cut-off events. For 2589/2591 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1793 event pairs, 26 based on Foata normal form. 14/424 useless extension candidates. Maximal degree in co-relation 1884. Up to 112 conditions per place. [2024-10-11 20:03:04,771 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 56 selfloop transitions, 28 changer transitions 4/103 dead transitions. [2024-10-11 20:03:04,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 103 transitions, 1071 flow [2024-10-11 20:03:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:03:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 20:03:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2024-10-11 20:03:04,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-10-11 20:03:04,773 INFO L175 Difference]: Start difference. First operand has 82 places, 61 transitions, 566 flow. Second operand 7 states and 91 transitions. [2024-10-11 20:03:04,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 103 transitions, 1071 flow [2024-10-11 20:03:04,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 103 transitions, 1011 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-10-11 20:03:04,780 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 793 flow [2024-10-11 20:03:04,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=793, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2024-10-11 20:03:04,781 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 56 predicate places. [2024-10-11 20:03:04,781 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 793 flow [2024-10-11 20:03:04,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:04,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:04,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:04,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 20:03:04,782 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:04,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:04,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2001057560, now seen corresponding path program 2 times [2024-10-11 20:03:04,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:04,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822609486] [2024-10-11 20:03:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:04,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:04,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:04,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822609486] [2024-10-11 20:03:04,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822609486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:04,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:04,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:04,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201233624] [2024-10-11 20:03:04,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:04,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:04,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:04,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:04,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:04,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:04,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 793 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:04,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:04,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:04,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:04,958 INFO L124 PetriNetUnfolderBase]: 235/461 cut-off events. [2024-10-11 20:03:04,958 INFO L125 PetriNetUnfolderBase]: For 4075/4077 co-relation queries the response was YES. [2024-10-11 20:03:04,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2332 conditions, 461 events. 235/461 cut-off events. For 4075/4077 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2037 event pairs, 51 based on Foata normal form. 10/467 useless extension candidates. Maximal degree in co-relation 2167. Up to 206 conditions per place. [2024-10-11 20:03:04,962 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 67 selfloop transitions, 21 changer transitions 0/103 dead transitions. [2024-10-11 20:03:04,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 103 transitions, 1164 flow [2024-10-11 20:03:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:03:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 20:03:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-10-11 20:03:04,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2024-10-11 20:03:04,965 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 793 flow. Second operand 5 states and 77 transitions. [2024-10-11 20:03:04,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 103 transitions, 1164 flow [2024-10-11 20:03:04,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 103 transitions, 1069 flow, removed 35 selfloop flow, removed 3 redundant places. [2024-10-11 20:03:04,975 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 860 flow [2024-10-11 20:03:04,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=860, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-10-11 20:03:04,975 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 60 predicate places. [2024-10-11 20:03:04,975 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 860 flow [2024-10-11 20:03:04,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:04,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:04,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:04,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 20:03:04,976 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:04,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:04,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1294786963, now seen corresponding path program 1 times [2024-10-11 20:03:04,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:04,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312492681] [2024-10-11 20:03:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:04,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:05,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:05,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312492681] [2024-10-11 20:03:05,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312492681] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:05,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699373104] [2024-10-11 20:03:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:05,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:05,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:05,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:05,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:03:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:05,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:03:05,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:05,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:05,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699373104] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:05,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:03:05,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2024-10-11 20:03:05,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413245493] [2024-10-11 20:03:05,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:05,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:05,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:05,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:05,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:03:05,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:05,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 860 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:05,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:05,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:05,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:05,357 INFO L124 PetriNetUnfolderBase]: 313/649 cut-off events. [2024-10-11 20:03:05,358 INFO L125 PetriNetUnfolderBase]: For 4566/4574 co-relation queries the response was YES. [2024-10-11 20:03:05,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3083 conditions, 649 events. 313/649 cut-off events. For 4566/4574 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3356 event pairs, 18 based on Foata normal form. 17/662 useless extension candidates. Maximal degree in co-relation 2653. Up to 291 conditions per place. [2024-10-11 20:03:05,364 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 62 selfloop transitions, 34 changer transitions 0/111 dead transitions. [2024-10-11 20:03:05,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 111 transitions, 1289 flow [2024-10-11 20:03:05,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:03:05,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 20:03:05,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2024-10-11 20:03:05,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-10-11 20:03:05,366 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 860 flow. Second operand 5 states and 76 transitions. [2024-10-11 20:03:05,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 111 transitions, 1289 flow [2024-10-11 20:03:05,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 111 transitions, 1218 flow, removed 27 selfloop flow, removed 1 redundant places. [2024-10-11 20:03:05,381 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 1040 flow [2024-10-11 20:03:05,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1040, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2024-10-11 20:03:05,381 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 66 predicate places. [2024-10-11 20:03:05,381 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 1040 flow [2024-10-11 20:03:05,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:05,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:05,382 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:05,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:05,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 20:03:05,583 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:05,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:05,583 INFO L85 PathProgramCache]: Analyzing trace with hash 333099746, now seen corresponding path program 3 times [2024-10-11 20:03:05,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:05,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264013348] [2024-10-11 20:03:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:05,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264013348] [2024-10-11 20:03:05,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264013348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:05,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:05,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:05,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346143308] [2024-10-11 20:03:05,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:05,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:05,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:05,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:05,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:05,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:05,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 1040 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:05,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:05,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:05,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:05,841 INFO L124 PetriNetUnfolderBase]: 307/641 cut-off events. [2024-10-11 20:03:05,841 INFO L125 PetriNetUnfolderBase]: For 4835/4844 co-relation queries the response was YES. [2024-10-11 20:03:05,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3142 conditions, 641 events. 307/641 cut-off events. For 4835/4844 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3321 event pairs, 40 based on Foata normal form. 16/657 useless extension candidates. Maximal degree in co-relation 2971. Up to 154 conditions per place. [2024-10-11 20:03:05,847 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 72 selfloop transitions, 30 changer transitions 4/121 dead transitions. [2024-10-11 20:03:05,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 121 transitions, 1462 flow [2024-10-11 20:03:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:03:05,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 20:03:05,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 107 transitions. [2024-10-11 20:03:05,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5572916666666666 [2024-10-11 20:03:05,848 INFO L175 Difference]: Start difference. First operand has 92 places, 87 transitions, 1040 flow. Second operand 8 states and 107 transitions. [2024-10-11 20:03:05,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 121 transitions, 1462 flow [2024-10-11 20:03:05,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 121 transitions, 1436 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-10-11 20:03:05,862 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 1081 flow [2024-10-11 20:03:05,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1081, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2024-10-11 20:03:05,863 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2024-10-11 20:03:05,863 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 1081 flow [2024-10-11 20:03:05,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:05,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:05,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:05,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 20:03:05,864 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:05,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash -511077783, now seen corresponding path program 2 times [2024-10-11 20:03:05,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:05,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852490585] [2024-10-11 20:03:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:05,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:05,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:05,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852490585] [2024-10-11 20:03:05,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852490585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:05,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:05,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:05,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090903726] [2024-10-11 20:03:05,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:05,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:05,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:05,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:05,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:05,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:05,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 1081 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:05,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:05,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:05,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:06,050 INFO L124 PetriNetUnfolderBase]: 271/569 cut-off events. [2024-10-11 20:03:06,051 INFO L125 PetriNetUnfolderBase]: For 4562/4570 co-relation queries the response was YES. [2024-10-11 20:03:06,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2912 conditions, 569 events. 271/569 cut-off events. For 4562/4570 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2866 event pairs, 19 based on Foata normal form. 20/585 useless extension candidates. Maximal degree in co-relation 2753. Up to 170 conditions per place. [2024-10-11 20:03:06,057 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 64 selfloop transitions, 24 changer transitions 3/105 dead transitions. [2024-10-11 20:03:06,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 1396 flow [2024-10-11 20:03:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:03:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 20:03:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 80 transitions. [2024-10-11 20:03:06,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-11 20:03:06,058 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 1081 flow. Second operand 6 states and 80 transitions. [2024-10-11 20:03:06,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 105 transitions, 1396 flow [2024-10-11 20:03:06,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 105 transitions, 1340 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-11 20:03:06,072 INFO L231 Difference]: Finished difference. Result has 102 places, 79 transitions, 987 flow [2024-10-11 20:03:06,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=987, PETRI_PLACES=102, PETRI_TRANSITIONS=79} [2024-10-11 20:03:06,073 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 76 predicate places. [2024-10-11 20:03:06,073 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 79 transitions, 987 flow [2024-10-11 20:03:06,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:06,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:06,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 20:03:06,074 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:06,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash -111371070, now seen corresponding path program 4 times [2024-10-11 20:03:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991340687] [2024-10-11 20:03:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:06,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:06,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:06,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991340687] [2024-10-11 20:03:06,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991340687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:06,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:06,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:06,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459568124] [2024-10-11 20:03:06,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:06,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:06,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:06,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:06,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:06,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:06,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 79 transitions, 987 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:06,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:06,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:06,261 INFO L124 PetriNetUnfolderBase]: 242/495 cut-off events. [2024-10-11 20:03:06,262 INFO L125 PetriNetUnfolderBase]: For 4514/4520 co-relation queries the response was YES. [2024-10-11 20:03:06,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2537 conditions, 495 events. 242/495 cut-off events. For 4514/4520 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2309 event pairs, 34 based on Foata normal form. 14/505 useless extension candidates. Maximal degree in co-relation 2422. Up to 271 conditions per place. [2024-10-11 20:03:06,267 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 58 selfloop transitions, 21 changer transitions 1/94 dead transitions. [2024-10-11 20:03:06,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 94 transitions, 1192 flow [2024-10-11 20:03:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:03:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 20:03:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2024-10-11 20:03:06,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-10-11 20:03:06,268 INFO L175 Difference]: Start difference. First operand has 102 places, 79 transitions, 987 flow. Second operand 5 states and 70 transitions. [2024-10-11 20:03:06,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 94 transitions, 1192 flow [2024-10-11 20:03:06,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 94 transitions, 1140 flow, removed 13 selfloop flow, removed 6 redundant places. [2024-10-11 20:03:06,280 INFO L231 Difference]: Finished difference. Result has 99 places, 77 transitions, 927 flow [2024-10-11 20:03:06,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=927, PETRI_PLACES=99, PETRI_TRANSITIONS=77} [2024-10-11 20:03:06,280 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2024-10-11 20:03:06,281 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 77 transitions, 927 flow [2024-10-11 20:03:06,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:06,281 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:06,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 20:03:06,281 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:06,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:06,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1610813881, now seen corresponding path program 3 times [2024-10-11 20:03:06,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:06,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051444118] [2024-10-11 20:03:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:06,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:06,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:06,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051444118] [2024-10-11 20:03:06,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051444118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:06,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:06,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:06,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232474025] [2024-10-11 20:03:06,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:06,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:06,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:06,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:06,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:06,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:06,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 77 transitions, 927 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:06,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:06,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:06,482 INFO L124 PetriNetUnfolderBase]: 313/620 cut-off events. [2024-10-11 20:03:06,483 INFO L125 PetriNetUnfolderBase]: For 5362/5364 co-relation queries the response was YES. [2024-10-11 20:03:06,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3232 conditions, 620 events. 313/620 cut-off events. For 5362/5364 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3080 event pairs, 92 based on Foata normal form. 11/620 useless extension candidates. Maximal degree in co-relation 3066. Up to 373 conditions per place. [2024-10-11 20:03:06,489 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 68 selfloop transitions, 31 changer transitions 0/113 dead transitions. [2024-10-11 20:03:06,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 113 transitions, 1493 flow [2024-10-11 20:03:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:03:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 20:03:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2024-10-11 20:03:06,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-10-11 20:03:06,490 INFO L175 Difference]: Start difference. First operand has 99 places, 77 transitions, 927 flow. Second operand 5 states and 73 transitions. [2024-10-11 20:03:06,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 113 transitions, 1493 flow [2024-10-11 20:03:06,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 113 transitions, 1410 flow, removed 15 selfloop flow, removed 9 redundant places. [2024-10-11 20:03:06,502 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 1212 flow [2024-10-11 20:03:06,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1212, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-10-11 20:03:06,502 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 71 predicate places. [2024-10-11 20:03:06,503 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 1212 flow [2024-10-11 20:03:06,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:06,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:06,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 20:03:06,503 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:06,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:06,504 INFO L85 PathProgramCache]: Analyzing trace with hash 733440583, now seen corresponding path program 4 times [2024-10-11 20:03:06,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:06,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728453082] [2024-10-11 20:03:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:06,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:06,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:06,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728453082] [2024-10-11 20:03:06,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728453082] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:06,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:06,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218538005] [2024-10-11 20:03:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:06,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:06,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:06,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 1212 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:06,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:06,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:06,691 INFO L124 PetriNetUnfolderBase]: 297/605 cut-off events. [2024-10-11 20:03:06,691 INFO L125 PetriNetUnfolderBase]: For 5127/5129 co-relation queries the response was YES. [2024-10-11 20:03:06,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3230 conditions, 605 events. 297/605 cut-off events. For 5127/5129 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3040 event pairs, 55 based on Foata normal form. 12/612 useless extension candidates. Maximal degree in co-relation 2374. Up to 222 conditions per place. [2024-10-11 20:03:06,696 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 65 selfloop transitions, 32 changer transitions 3/114 dead transitions. [2024-10-11 20:03:06,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 114 transitions, 1564 flow [2024-10-11 20:03:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:03:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 20:03:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions. [2024-10-11 20:03:06,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2024-10-11 20:03:06,698 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 1212 flow. Second operand 7 states and 87 transitions. [2024-10-11 20:03:06,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 114 transitions, 1564 flow [2024-10-11 20:03:06,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 114 transitions, 1544 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-10-11 20:03:06,711 INFO L231 Difference]: Finished difference. Result has 104 places, 92 transitions, 1266 flow [2024-10-11 20:03:06,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1266, PETRI_PLACES=104, PETRI_TRANSITIONS=92} [2024-10-11 20:03:06,712 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 78 predicate places. [2024-10-11 20:03:06,715 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 92 transitions, 1266 flow [2024-10-11 20:03:06,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:06,715 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:06,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 20:03:06,716 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:06,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash 107556206, now seen corresponding path program 5 times [2024-10-11 20:03:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:06,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926489968] [2024-10-11 20:03:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:06,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:06,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926489968] [2024-10-11 20:03:06,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926489968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:06,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:06,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:06,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245289462] [2024-10-11 20:03:06,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:06,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:06,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:06,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:06,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 92 transitions, 1266 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:06,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:06,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:06,901 INFO L124 PetriNetUnfolderBase]: 255/519 cut-off events. [2024-10-11 20:03:06,901 INFO L125 PetriNetUnfolderBase]: For 4772/4772 co-relation queries the response was YES. [2024-10-11 20:03:06,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2881 conditions, 519 events. 255/519 cut-off events. For 4772/4772 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2444 event pairs, 20 based on Foata normal form. 14/531 useless extension candidates. Maximal degree in co-relation 2440. Up to 159 conditions per place. [2024-10-11 20:03:06,906 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 68 selfloop transitions, 22 changer transitions 3/106 dead transitions. [2024-10-11 20:03:06,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 106 transitions, 1507 flow [2024-10-11 20:03:06,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:03:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 20:03:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2024-10-11 20:03:06,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-10-11 20:03:06,907 INFO L175 Difference]: Start difference. First operand has 104 places, 92 transitions, 1266 flow. Second operand 6 states and 78 transitions. [2024-10-11 20:03:06,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 106 transitions, 1507 flow [2024-10-11 20:03:06,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 106 transitions, 1438 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-10-11 20:03:06,919 INFO L231 Difference]: Finished difference. Result has 105 places, 83 transitions, 1101 flow [2024-10-11 20:03:06,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1101, PETRI_PLACES=105, PETRI_TRANSITIONS=83} [2024-10-11 20:03:06,920 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 79 predicate places. [2024-10-11 20:03:06,920 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 83 transitions, 1101 flow [2024-10-11 20:03:06,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:06,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:06,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-11 20:03:06,921 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:06,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:06,923 INFO L85 PathProgramCache]: Analyzing trace with hash 81766419, now seen corresponding path program 5 times [2024-10-11 20:03:06,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:06,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651810058] [2024-10-11 20:03:06,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:06,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:06,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:06,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651810058] [2024-10-11 20:03:06,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651810058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:06,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:06,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:03:06,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148610010] [2024-10-11 20:03:06,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:06,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:03:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:03:06,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:03:06,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:06,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 83 transitions, 1101 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:06,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:06,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:06,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:07,122 INFO L124 PetriNetUnfolderBase]: 225/443 cut-off events. [2024-10-11 20:03:07,122 INFO L125 PetriNetUnfolderBase]: For 4544/4544 co-relation queries the response was YES. [2024-10-11 20:03:07,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 443 events. 225/443 cut-off events. For 4544/4544 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1953 event pairs, 40 based on Foata normal form. 6/445 useless extension candidates. Maximal degree in co-relation 2133. Up to 146 conditions per place. [2024-10-11 20:03:07,128 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 61 selfloop transitions, 27 changer transitions 2/103 dead transitions. [2024-10-11 20:03:07,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 103 transitions, 1373 flow [2024-10-11 20:03:07,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:03:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 20:03:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 99 transitions. [2024-10-11 20:03:07,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-10-11 20:03:07,132 INFO L175 Difference]: Start difference. First operand has 105 places, 83 transitions, 1101 flow. Second operand 8 states and 99 transitions. [2024-10-11 20:03:07,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 103 transitions, 1373 flow [2024-10-11 20:03:07,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 103 transitions, 1298 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-10-11 20:03:07,142 INFO L231 Difference]: Finished difference. Result has 102 places, 78 transitions, 1013 flow [2024-10-11 20:03:07,142 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1013, PETRI_PLACES=102, PETRI_TRANSITIONS=78} [2024-10-11 20:03:07,143 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 76 predicate places. [2024-10-11 20:03:07,143 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 78 transitions, 1013 flow [2024-10-11 20:03:07,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-11 20:03:07,143 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:07,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:07,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-11 20:03:07,144 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:07,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2142470050, now seen corresponding path program 1 times [2024-10-11 20:03:07,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:07,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612643056] [2024-10-11 20:03:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:07,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:07,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612643056] [2024-10-11 20:03:07,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612643056] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188883461] [2024-10-11 20:03:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:07,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:07,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:07,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:07,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:03:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:07,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:07,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:07,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:07,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188883461] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:07,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:07,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-11 20:03:07,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715654025] [2024-10-11 20:03:07,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:07,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:07,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:07,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:07,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:07,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:07,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 78 transitions, 1013 flow. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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) [2024-10-11 20:03:07,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:07,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:07,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:09,139 INFO L124 PetriNetUnfolderBase]: 677/1270 cut-off events. [2024-10-11 20:03:09,140 INFO L125 PetriNetUnfolderBase]: For 9595/9595 co-relation queries the response was YES. [2024-10-11 20:03:09,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6314 conditions, 1270 events. 677/1270 cut-off events. For 9595/9595 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6780 event pairs, 35 based on Foata normal form. 2/1272 useless extension candidates. Maximal degree in co-relation 5740. Up to 236 conditions per place. [2024-10-11 20:03:09,152 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 128 selfloop transitions, 85 changer transitions 64/278 dead transitions. [2024-10-11 20:03:09,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 278 transitions, 3312 flow [2024-10-11 20:03:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-11 20:03:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-10-11 20:03:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 346 transitions. [2024-10-11 20:03:09,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40046296296296297 [2024-10-11 20:03:09,154 INFO L175 Difference]: Start difference. First operand has 102 places, 78 transitions, 1013 flow. Second operand 36 states and 346 transitions. [2024-10-11 20:03:09,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 278 transitions, 3312 flow [2024-10-11 20:03:09,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 278 transitions, 3126 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-11 20:03:09,170 INFO L231 Difference]: Finished difference. Result has 150 places, 126 transitions, 1933 flow [2024-10-11 20:03:09,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1933, PETRI_PLACES=150, PETRI_TRANSITIONS=126} [2024-10-11 20:03:09,171 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 124 predicate places. [2024-10-11 20:03:09,171 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 126 transitions, 1933 flow [2024-10-11 20:03:09,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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) [2024-10-11 20:03:09,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:09,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:09,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 20:03:09,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:09,374 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:09,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:09,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1599077694, now seen corresponding path program 2 times [2024-10-11 20:03:09,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:09,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379154210] [2024-10-11 20:03:09,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:09,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:09,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:09,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379154210] [2024-10-11 20:03:09,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379154210] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:09,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893125749] [2024-10-11 20:03:09,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:03:09,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:09,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:09,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:09,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:03:09,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:09,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:09,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:03:09,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:09,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:09,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893125749] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:09,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:09,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-10-11 20:03:09,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145892077] [2024-10-11 20:03:09,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:09,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 20:03:09,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:09,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 20:03:09,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-10-11 20:03:09,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:09,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 126 transitions, 1933 flow. Second operand has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 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) [2024-10-11 20:03:09,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:09,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:09,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:11,493 INFO L124 PetriNetUnfolderBase]: 845/1586 cut-off events. [2024-10-11 20:03:11,493 INFO L125 PetriNetUnfolderBase]: For 15409/15409 co-relation queries the response was YES. [2024-10-11 20:03:11,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8959 conditions, 1586 events. 845/1586 cut-off events. For 15409/15409 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 9101 event pairs, 111 based on Foata normal form. 13/1599 useless extension candidates. Maximal degree in co-relation 8834. Up to 738 conditions per place. [2024-10-11 20:03:11,504 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 132 selfloop transitions, 162 changer transitions 15/310 dead transitions. [2024-10-11 20:03:11,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 310 transitions, 4870 flow [2024-10-11 20:03:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 20:03:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-10-11 20:03:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 335 transitions. [2024-10-11 20:03:11,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37725225225225223 [2024-10-11 20:03:11,506 INFO L175 Difference]: Start difference. First operand has 150 places, 126 transitions, 1933 flow. Second operand 37 states and 335 transitions. [2024-10-11 20:03:11,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 310 transitions, 4870 flow [2024-10-11 20:03:11,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 310 transitions, 4088 flow, removed 287 selfloop flow, removed 16 redundant places. [2024-10-11 20:03:11,546 INFO L231 Difference]: Finished difference. Result has 171 places, 224 transitions, 3473 flow [2024-10-11 20:03:11,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1586, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=3473, PETRI_PLACES=171, PETRI_TRANSITIONS=224} [2024-10-11 20:03:11,546 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 145 predicate places. [2024-10-11 20:03:11,546 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 224 transitions, 3473 flow [2024-10-11 20:03:11,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 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) [2024-10-11 20:03:11,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:11,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:11,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:11,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:11,749 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:11,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:11,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1860663798, now seen corresponding path program 3 times [2024-10-11 20:03:11,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:11,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549679625] [2024-10-11 20:03:11,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:11,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:11,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:11,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:11,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549679625] [2024-10-11 20:03:11,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549679625] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:11,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726746635] [2024-10-11 20:03:11,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:03:11,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:11,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:11,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:11,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:03:11,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 20:03:11,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:11,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:03:11,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:12,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:12,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726746635] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:12,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:12,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-10-11 20:03:12,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500408216] [2024-10-11 20:03:12,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:12,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 20:03:12,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:12,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 20:03:12,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-11 20:03:12,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:12,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 224 transitions, 3473 flow. Second operand has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 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) [2024-10-11 20:03:12,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:12,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:12,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:12,894 INFO L124 PetriNetUnfolderBase]: 833/1553 cut-off events. [2024-10-11 20:03:12,894 INFO L125 PetriNetUnfolderBase]: For 13774/13774 co-relation queries the response was YES. [2024-10-11 20:03:12,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8701 conditions, 1553 events. 833/1553 cut-off events. For 13774/13774 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8827 event pairs, 63 based on Foata normal form. 5/1558 useless extension candidates. Maximal degree in co-relation 8598. Up to 589 conditions per place. [2024-10-11 20:03:12,907 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 126 selfloop transitions, 136 changer transitions 23/286 dead transitions. [2024-10-11 20:03:12,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 286 transitions, 4585 flow [2024-10-11 20:03:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 20:03:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-11 20:03:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 177 transitions. [2024-10-11 20:03:12,909 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4097222222222222 [2024-10-11 20:03:12,909 INFO L175 Difference]: Start difference. First operand has 171 places, 224 transitions, 3473 flow. Second operand 18 states and 177 transitions. [2024-10-11 20:03:12,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 286 transitions, 4585 flow [2024-10-11 20:03:12,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 286 transitions, 4072 flow, removed 190 selfloop flow, removed 11 redundant places. [2024-10-11 20:03:12,966 INFO L231 Difference]: Finished difference. Result has 182 places, 229 transitions, 3396 flow [2024-10-11 20:03:12,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2984, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3396, PETRI_PLACES=182, PETRI_TRANSITIONS=229} [2024-10-11 20:03:12,967 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 156 predicate places. [2024-10-11 20:03:12,967 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 229 transitions, 3396 flow [2024-10-11 20:03:12,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 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) [2024-10-11 20:03:12,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:12,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:12,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 20:03:13,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-10-11 20:03:13,172 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:13,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:13,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1350276192, now seen corresponding path program 4 times [2024-10-11 20:03:13,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:13,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914485105] [2024-10-11 20:03:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:13,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:13,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:13,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914485105] [2024-10-11 20:03:13,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914485105] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:13,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253992619] [2024-10-11 20:03:13,301 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:03:13,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:13,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:13,303 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:13,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:03:13,350 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:03:13,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:13,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:13,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:13,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:13,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:13,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253992619] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:13,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:13,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-11 20:03:13,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001220972] [2024-10-11 20:03:13,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:13,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:13,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:13,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:13,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:13,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 229 transitions, 3396 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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) [2024-10-11 20:03:13,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:13,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:13,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:14,404 INFO L124 PetriNetUnfolderBase]: 919/1702 cut-off events. [2024-10-11 20:03:14,405 INFO L125 PetriNetUnfolderBase]: For 16754/16754 co-relation queries the response was YES. [2024-10-11 20:03:14,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9697 conditions, 1702 events. 919/1702 cut-off events. For 16754/16754 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 9730 event pairs, 48 based on Foata normal form. 5/1707 useless extension candidates. Maximal degree in co-relation 9595. Up to 366 conditions per place. [2024-10-11 20:03:14,416 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 108 selfloop transitions, 164 changer transitions 59/332 dead transitions. [2024-10-11 20:03:14,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 332 transitions, 5219 flow [2024-10-11 20:03:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 20:03:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 20:03:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 180 transitions. [2024-10-11 20:03:14,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39473684210526316 [2024-10-11 20:03:14,418 INFO L175 Difference]: Start difference. First operand has 182 places, 229 transitions, 3396 flow. Second operand 19 states and 180 transitions. [2024-10-11 20:03:14,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 332 transitions, 5219 flow [2024-10-11 20:03:14,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 332 transitions, 5094 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:14,487 INFO L231 Difference]: Finished difference. Result has 198 places, 237 transitions, 3973 flow [2024-10-11 20:03:14,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3284, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3973, PETRI_PLACES=198, PETRI_TRANSITIONS=237} [2024-10-11 20:03:14,487 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 172 predicate places. [2024-10-11 20:03:14,488 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 237 transitions, 3973 flow [2024-10-11 20:03:14,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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) [2024-10-11 20:03:14,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:14,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:14,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 20:03:14,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-10-11 20:03:14,693 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:14,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:14,693 INFO L85 PathProgramCache]: Analyzing trace with hash 123412482, now seen corresponding path program 5 times [2024-10-11 20:03:14,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:14,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221416211] [2024-10-11 20:03:14,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:14,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:14,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:14,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221416211] [2024-10-11 20:03:14,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221416211] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:14,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771977156] [2024-10-11 20:03:14,815 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:03:14,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:14,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:14,817 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:14,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:03:14,861 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:14,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:14,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:03:14,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:14,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:03:14,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771977156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:14,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:03:14,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-10-11 20:03:14,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006187338] [2024-10-11 20:03:14,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:14,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:14,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:14,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-11 20:03:14,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:14,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 237 transitions, 3973 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2024-10-11 20:03:14,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:14,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:14,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:15,181 INFO L124 PetriNetUnfolderBase]: 774/1429 cut-off events. [2024-10-11 20:03:15,182 INFO L125 PetriNetUnfolderBase]: For 18120/18120 co-relation queries the response was YES. [2024-10-11 20:03:15,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9203 conditions, 1429 events. 774/1429 cut-off events. For 18120/18120 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7684 event pairs, 162 based on Foata normal form. 2/1431 useless extension candidates. Maximal degree in co-relation 9143. Up to 871 conditions per place. [2024-10-11 20:03:15,192 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 151 selfloop transitions, 112 changer transitions 17/281 dead transitions. [2024-10-11 20:03:15,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 281 transitions, 5101 flow [2024-10-11 20:03:15,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:15,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2024-10-11 20:03:15,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-10-11 20:03:15,194 INFO L175 Difference]: Start difference. First operand has 198 places, 237 transitions, 3973 flow. Second operand 9 states and 91 transitions. [2024-10-11 20:03:15,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 281 transitions, 5101 flow [2024-10-11 20:03:15,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 281 transitions, 4794 flow, removed 116 selfloop flow, removed 9 redundant places. [2024-10-11 20:03:15,282 INFO L231 Difference]: Finished difference. Result has 187 places, 247 transitions, 4104 flow [2024-10-11 20:03:15,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3677, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4104, PETRI_PLACES=187, PETRI_TRANSITIONS=247} [2024-10-11 20:03:15,283 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 161 predicate places. [2024-10-11 20:03:15,283 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 247 transitions, 4104 flow [2024-10-11 20:03:15,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2024-10-11 20:03:15,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:15,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:15,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:15,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-10-11 20:03:15,485 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:15,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1031649478, now seen corresponding path program 6 times [2024-10-11 20:03:15,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:15,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228011274] [2024-10-11 20:03:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:15,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:15,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:15,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:15,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228011274] [2024-10-11 20:03:15,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228011274] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:15,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197127146] [2024-10-11 20:03:15,600 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:03:15,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:15,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:15,603 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:15,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:03:15,649 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-10-11 20:03:15,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:15,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:15,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:15,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:16,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197127146] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:16,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:16,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-11 20:03:16,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014190027] [2024-10-11 20:03:16,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:16,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 20:03:16,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 20:03:16,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:03:16,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:16,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 247 transitions, 4104 flow. Second operand has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 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) [2024-10-11 20:03:16,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:16,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:16,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:17,357 INFO L124 PetriNetUnfolderBase]: 1519/2811 cut-off events. [2024-10-11 20:03:17,357 INFO L125 PetriNetUnfolderBase]: For 35353/35353 co-relation queries the response was YES. [2024-10-11 20:03:17,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17240 conditions, 2811 events. 1519/2811 cut-off events. For 35353/35353 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 18038 event pairs, 78 based on Foata normal form. 20/2831 useless extension candidates. Maximal degree in co-relation 17181. Up to 551 conditions per place. [2024-10-11 20:03:17,378 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 178 selfloop transitions, 344 changer transitions 40/563 dead transitions. [2024-10-11 20:03:17,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 563 transitions, 9663 flow [2024-10-11 20:03:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 20:03:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-11 20:03:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 342 transitions. [2024-10-11 20:03:17,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40714285714285714 [2024-10-11 20:03:17,380 INFO L175 Difference]: Start difference. First operand has 187 places, 247 transitions, 4104 flow. Second operand 35 states and 342 transitions. [2024-10-11 20:03:17,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 563 transitions, 9663 flow [2024-10-11 20:03:17,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 563 transitions, 9257 flow, removed 84 selfloop flow, removed 6 redundant places. [2024-10-11 20:03:17,548 INFO L231 Difference]: Finished difference. Result has 231 places, 432 transitions, 8308 flow [2024-10-11 20:03:17,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3924, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=8308, PETRI_PLACES=231, PETRI_TRANSITIONS=432} [2024-10-11 20:03:17,549 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 205 predicate places. [2024-10-11 20:03:17,549 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 432 transitions, 8308 flow [2024-10-11 20:03:17,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 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) [2024-10-11 20:03:17,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:17,550 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:17,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 20:03:17,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:17,750 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:17,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1393510450, now seen corresponding path program 7 times [2024-10-11 20:03:17,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:17,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618445611] [2024-10-11 20:03:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:17,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:17,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:17,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618445611] [2024-10-11 20:03:17,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618445611] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:17,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248382551] [2024-10-11 20:03:17,867 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:03:17,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:17,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:17,869 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:17,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 20:03:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:17,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:17,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:17,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248382551] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:18,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:18,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2024-10-11 20:03:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655007546] [2024-10-11 20:03:18,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:18,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 20:03:18,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 20:03:18,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-11 20:03:18,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:18,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 432 transitions, 8308 flow. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 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) [2024-10-11 20:03:18,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:18,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:18,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:19,223 INFO L124 PetriNetUnfolderBase]: 1458/2736 cut-off events. [2024-10-11 20:03:19,223 INFO L125 PetriNetUnfolderBase]: For 40526/40526 co-relation queries the response was YES. [2024-10-11 20:03:19,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18573 conditions, 2736 events. 1458/2736 cut-off events. For 40526/40526 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 17694 event pairs, 103 based on Foata normal form. 53/2789 useless extension candidates. Maximal degree in co-relation 18500. Up to 705 conditions per place. [2024-10-11 20:03:19,246 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 132 selfloop transitions, 325 changer transitions 59/517 dead transitions. [2024-10-11 20:03:19,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 517 transitions, 10370 flow [2024-10-11 20:03:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-11 20:03:19,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-11 20:03:19,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 224 transitions. [2024-10-11 20:03:19,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37333333333333335 [2024-10-11 20:03:19,248 INFO L175 Difference]: Start difference. First operand has 231 places, 432 transitions, 8308 flow. Second operand 25 states and 224 transitions. [2024-10-11 20:03:19,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 517 transitions, 10370 flow [2024-10-11 20:03:19,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 517 transitions, 9522 flow, removed 216 selfloop flow, removed 15 redundant places. [2024-10-11 20:03:19,562 INFO L231 Difference]: Finished difference. Result has 245 places, 419 transitions, 8480 flow [2024-10-11 20:03:19,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6888, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8480, PETRI_PLACES=245, PETRI_TRANSITIONS=419} [2024-10-11 20:03:19,563 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 219 predicate places. [2024-10-11 20:03:19,563 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 419 transitions, 8480 flow [2024-10-11 20:03:19,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 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) [2024-10-11 20:03:19,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:19,564 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:19,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 20:03:19,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-11 20:03:19,766 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:19,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:19,766 INFO L85 PathProgramCache]: Analyzing trace with hash 954149100, now seen corresponding path program 8 times [2024-10-11 20:03:19,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:19,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555696316] [2024-10-11 20:03:19,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:19,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:19,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:19,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555696316] [2024-10-11 20:03:19,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555696316] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:19,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089070976] [2024-10-11 20:03:19,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:03:19,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:19,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:19,909 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:19,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 20:03:19,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:19,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:19,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:19,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:20,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089070976] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:20,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-10-11 20:03:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988049527] [2024-10-11 20:03:20,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:20,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 20:03:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 20:03:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2024-10-11 20:03:20,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:20,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 419 transitions, 8480 flow. Second operand has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 22 states have internal predecessors, (120), 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) [2024-10-11 20:03:20,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:20,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:20,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:20,940 INFO L124 PetriNetUnfolderBase]: 1464/2762 cut-off events. [2024-10-11 20:03:20,940 INFO L125 PetriNetUnfolderBase]: For 44290/44290 co-relation queries the response was YES. [2024-10-11 20:03:20,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20272 conditions, 2762 events. 1464/2762 cut-off events. For 44290/44290 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 18063 event pairs, 178 based on Foata normal form. 2/2764 useless extension candidates. Maximal degree in co-relation 20197. Up to 1368 conditions per place. [2024-10-11 20:03:20,960 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 232 selfloop transitions, 304 changer transitions 23/560 dead transitions. [2024-10-11 20:03:20,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 560 transitions, 12369 flow [2024-10-11 20:03:20,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:03:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 20:03:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 139 transitions. [2024-10-11 20:03:20,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41369047619047616 [2024-10-11 20:03:20,961 INFO L175 Difference]: Start difference. First operand has 245 places, 419 transitions, 8480 flow. Second operand 14 states and 139 transitions. [2024-10-11 20:03:20,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 560 transitions, 12369 flow [2024-10-11 20:03:21,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 560 transitions, 11612 flow, removed 262 selfloop flow, removed 9 redundant places. [2024-10-11 20:03:21,283 INFO L231 Difference]: Finished difference. Result has 247 places, 491 transitions, 10367 flow [2024-10-11 20:03:21,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7959, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10367, PETRI_PLACES=247, PETRI_TRANSITIONS=491} [2024-10-11 20:03:21,284 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 221 predicate places. [2024-10-11 20:03:21,284 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 491 transitions, 10367 flow [2024-10-11 20:03:21,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 22 states have internal predecessors, (120), 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) [2024-10-11 20:03:21,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:21,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:21,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:21,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:21,485 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:21,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:21,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1475391222, now seen corresponding path program 9 times [2024-10-11 20:03:21,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:21,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346370382] [2024-10-11 20:03:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:21,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:21,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346370382] [2024-10-11 20:03:21,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346370382] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:21,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114474841] [2024-10-11 20:03:21,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:03:21,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:21,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:21,609 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:21,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 20:03:21,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-11 20:03:21,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:21,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:21,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:21,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:21,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114474841] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:21,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:21,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-10-11 20:03:21,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370448230] [2024-10-11 20:03:21,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:21,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 20:03:21,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:21,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 20:03:21,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-11 20:03:21,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:21,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 491 transitions, 10367 flow. Second operand has 22 states, 22 states have (on average 5.5) internal successors, (121), 22 states have internal predecessors, (121), 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) [2024-10-11 20:03:21,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:21,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:21,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:22,948 INFO L124 PetriNetUnfolderBase]: 1588/3016 cut-off events. [2024-10-11 20:03:22,949 INFO L125 PetriNetUnfolderBase]: For 48366/48366 co-relation queries the response was YES. [2024-10-11 20:03:22,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21557 conditions, 3016 events. 1588/3016 cut-off events. For 48366/48366 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 20119 event pairs, 187 based on Foata normal form. 6/3022 useless extension candidates. Maximal degree in co-relation 21483. Up to 1350 conditions per place. [2024-10-11 20:03:22,968 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 235 selfloop transitions, 296 changer transitions 47/579 dead transitions. [2024-10-11 20:03:22,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 579 transitions, 12719 flow [2024-10-11 20:03:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 20:03:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-11 20:03:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 154 transitions. [2024-10-11 20:03:22,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4010416666666667 [2024-10-11 20:03:22,969 INFO L175 Difference]: Start difference. First operand has 247 places, 491 transitions, 10367 flow. Second operand 16 states and 154 transitions. [2024-10-11 20:03:22,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 579 transitions, 12719 flow [2024-10-11 20:03:23,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 579 transitions, 12445 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-10-11 20:03:23,252 INFO L231 Difference]: Finished difference. Result has 258 places, 483 transitions, 10494 flow [2024-10-11 20:03:23,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=10114, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=294, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10494, PETRI_PLACES=258, PETRI_TRANSITIONS=483} [2024-10-11 20:03:23,253 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 232 predicate places. [2024-10-11 20:03:23,253 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 483 transitions, 10494 flow [2024-10-11 20:03:23,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.5) internal successors, (121), 22 states have internal predecessors, (121), 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) [2024-10-11 20:03:23,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:23,253 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:23,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 20:03:23,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-10-11 20:03:23,457 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:23,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:23,457 INFO L85 PathProgramCache]: Analyzing trace with hash 862787534, now seen corresponding path program 10 times [2024-10-11 20:03:23,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:23,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291679052] [2024-10-11 20:03:23,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:23,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:23,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:23,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291679052] [2024-10-11 20:03:23,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291679052] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:23,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968141225] [2024-10-11 20:03:23,570 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:03:23,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:23,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:23,572 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:23,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 20:03:23,609 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:03:23,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:23,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:23,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:23,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:23,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968141225] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:23,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:23,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-10-11 20:03:23,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666160806] [2024-10-11 20:03:23,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:23,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 20:03:23,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:23,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 20:03:23,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-10-11 20:03:23,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:23,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 483 transitions, 10494 flow. Second operand has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 states have internal predecessors, (110), 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) [2024-10-11 20:03:23,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:23,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:23,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:24,846 INFO L124 PetriNetUnfolderBase]: 1438/2752 cut-off events. [2024-10-11 20:03:24,846 INFO L125 PetriNetUnfolderBase]: For 47224/47224 co-relation queries the response was YES. [2024-10-11 20:03:24,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20185 conditions, 2752 events. 1438/2752 cut-off events. For 47224/47224 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 18120 event pairs, 61 based on Foata normal form. 5/2757 useless extension candidates. Maximal degree in co-relation 20110. Up to 642 conditions per place. [2024-10-11 20:03:24,870 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 127 selfloop transitions, 372 changer transitions 40/540 dead transitions. [2024-10-11 20:03:24,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 540 transitions, 12089 flow [2024-10-11 20:03:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 20:03:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-11 20:03:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 213 transitions. [2024-10-11 20:03:24,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3697916666666667 [2024-10-11 20:03:24,872 INFO L175 Difference]: Start difference. First operand has 258 places, 483 transitions, 10494 flow. Second operand 24 states and 213 transitions. [2024-10-11 20:03:24,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 540 transitions, 12089 flow [2024-10-11 20:03:25,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 540 transitions, 11504 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-10-11 20:03:25,114 INFO L231 Difference]: Finished difference. Result has 269 places, 467 transitions, 10326 flow [2024-10-11 20:03:25,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9927, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=10326, PETRI_PLACES=269, PETRI_TRANSITIONS=467} [2024-10-11 20:03:25,115 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 243 predicate places. [2024-10-11 20:03:25,116 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 467 transitions, 10326 flow [2024-10-11 20:03:25,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 states have internal predecessors, (110), 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) [2024-10-11 20:03:25,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:25,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:25,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 20:03:25,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-11 20:03:25,317 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:25,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:25,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1541176500, now seen corresponding path program 11 times [2024-10-11 20:03:25,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:25,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41474682] [2024-10-11 20:03:25,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:25,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:25,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:25,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41474682] [2024-10-11 20:03:25,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41474682] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:25,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613318535] [2024-10-11 20:03:25,485 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:03:25,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:25,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:25,486 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:25,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 20:03:25,522 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:25,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:25,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:03:25,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:25,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:03:25,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613318535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:25,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:03:25,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-10-11 20:03:25,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866467094] [2024-10-11 20:03:25,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:25,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:25,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:25,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-10-11 20:03:25,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:25,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 467 transitions, 10326 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2024-10-11 20:03:25,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:25,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:25,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:26,148 INFO L124 PetriNetUnfolderBase]: 1545/2971 cut-off events. [2024-10-11 20:03:26,148 INFO L125 PetriNetUnfolderBase]: For 52244/52244 co-relation queries the response was YES. [2024-10-11 20:03:26,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22221 conditions, 2971 events. 1545/2971 cut-off events. For 52244/52244 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 20072 event pairs, 244 based on Foata normal form. 8/2979 useless extension candidates. Maximal degree in co-relation 22145. Up to 1617 conditions per place. [2024-10-11 20:03:26,176 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 266 selfloop transitions, 190 changer transitions 93/550 dead transitions. [2024-10-11 20:03:26,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 550 transitions, 13082 flow [2024-10-11 20:03:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:26,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-10-11 20:03:26,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-10-11 20:03:26,177 INFO L175 Difference]: Start difference. First operand has 269 places, 467 transitions, 10326 flow. Second operand 9 states and 96 transitions. [2024-10-11 20:03:26,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 550 transitions, 13082 flow [2024-10-11 20:03:26,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 550 transitions, 12561 flow, removed 39 selfloop flow, removed 13 redundant places. [2024-10-11 20:03:26,477 INFO L231 Difference]: Finished difference. Result has 266 places, 442 transitions, 9962 flow [2024-10-11 20:03:26,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9851, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9962, PETRI_PLACES=266, PETRI_TRANSITIONS=442} [2024-10-11 20:03:26,477 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 240 predicate places. [2024-10-11 20:03:26,478 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 442 transitions, 9962 flow [2024-10-11 20:03:26,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2024-10-11 20:03:26,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:26,478 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:26,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 20:03:26,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:26,678 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:26,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:26,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1865087166, now seen corresponding path program 12 times [2024-10-11 20:03:26,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:26,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410975928] [2024-10-11 20:03:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:26,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:26,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410975928] [2024-10-11 20:03:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410975928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556770051] [2024-10-11 20:03:26,810 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:03:26,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:26,812 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:26,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 20:03:26,857 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-11 20:03:26,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:26,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:26,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:26,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:27,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556770051] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:27,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:27,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-11 20:03:27,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700381231] [2024-10-11 20:03:27,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:27,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 20:03:27,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:27,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 20:03:27,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:03:27,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:27,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 442 transitions, 9962 flow. Second operand has 21 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 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) [2024-10-11 20:03:27,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:27,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:27,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:28,237 INFO L124 PetriNetUnfolderBase]: 1329/2562 cut-off events. [2024-10-11 20:03:28,237 INFO L125 PetriNetUnfolderBase]: For 47950/47950 co-relation queries the response was YES. [2024-10-11 20:03:28,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19447 conditions, 2562 events. 1329/2562 cut-off events. For 47950/47950 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 16752 event pairs, 89 based on Foata normal form. 3/2565 useless extension candidates. Maximal degree in co-relation 19367. Up to 631 conditions per place. [2024-10-11 20:03:28,254 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 135 selfloop transitions, 290 changer transitions 81/507 dead transitions. [2024-10-11 20:03:28,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 507 transitions, 11676 flow [2024-10-11 20:03:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-11 20:03:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-11 20:03:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 241 transitions. [2024-10-11 20:03:28,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40166666666666667 [2024-10-11 20:03:28,256 INFO L175 Difference]: Start difference. First operand has 266 places, 442 transitions, 9962 flow. Second operand 25 states and 241 transitions. [2024-10-11 20:03:28,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 507 transitions, 11676 flow [2024-10-11 20:03:28,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 507 transitions, 11335 flow, removed 42 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:28,452 INFO L231 Difference]: Finished difference. Result has 286 places, 384 transitions, 8915 flow [2024-10-11 20:03:28,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9636, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=281, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8915, PETRI_PLACES=286, PETRI_TRANSITIONS=384} [2024-10-11 20:03:28,453 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 260 predicate places. [2024-10-11 20:03:28,453 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 384 transitions, 8915 flow [2024-10-11 20:03:28,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 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) [2024-10-11 20:03:28,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:28,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:28,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:28,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:28,654 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:28,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash 296660174, now seen corresponding path program 13 times [2024-10-11 20:03:28,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:28,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196086404] [2024-10-11 20:03:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:28,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:28,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:28,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196086404] [2024-10-11 20:03:28,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196086404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:28,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741225336] [2024-10-11 20:03:28,765 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:03:28,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:28,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:28,767 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:28,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 20:03:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:28,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:28,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:28,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:29,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741225336] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:29,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:29,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-10-11 20:03:29,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360102911] [2024-10-11 20:03:29,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:29,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 20:03:29,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:29,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 20:03:29,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-10-11 20:03:29,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:29,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 384 transitions, 8915 flow. Second operand has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 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) [2024-10-11 20:03:29,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:29,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:29,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:29,971 INFO L124 PetriNetUnfolderBase]: 1198/2308 cut-off events. [2024-10-11 20:03:29,971 INFO L125 PetriNetUnfolderBase]: For 43897/43897 co-relation queries the response was YES. [2024-10-11 20:03:29,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17686 conditions, 2308 events. 1198/2308 cut-off events. For 43897/43897 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 14525 event pairs, 51 based on Foata normal form. 4/2312 useless extension candidates. Maximal degree in co-relation 17605. Up to 570 conditions per place. [2024-10-11 20:03:29,993 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 116 selfloop transitions, 284 changer transitions 38/439 dead transitions. [2024-10-11 20:03:29,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 439 transitions, 10203 flow [2024-10-11 20:03:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-11 20:03:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-11 20:03:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 213 transitions. [2024-10-11 20:03:29,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.355 [2024-10-11 20:03:29,994 INFO L175 Difference]: Start difference. First operand has 286 places, 384 transitions, 8915 flow. Second operand 25 states and 213 transitions. [2024-10-11 20:03:29,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 439 transitions, 10203 flow [2024-10-11 20:03:30,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 439 transitions, 9601 flow, removed 54 selfloop flow, removed 16 redundant places. [2024-10-11 20:03:30,180 INFO L231 Difference]: Finished difference. Result has 294 places, 371 transitions, 8607 flow [2024-10-11 20:03:30,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=8335, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=282, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8607, PETRI_PLACES=294, PETRI_TRANSITIONS=371} [2024-10-11 20:03:30,180 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 268 predicate places. [2024-10-11 20:03:30,181 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 371 transitions, 8607 flow [2024-10-11 20:03:30,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 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) [2024-10-11 20:03:30,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:30,181 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:30,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:30,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-10-11 20:03:30,382 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:30,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1713554998, now seen corresponding path program 14 times [2024-10-11 20:03:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:30,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126922891] [2024-10-11 20:03:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:30,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:30,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:30,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126922891] [2024-10-11 20:03:30,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126922891] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:30,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105972460] [2024-10-11 20:03:30,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:03:30,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:30,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:30,502 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:30,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 20:03:30,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:30,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:30,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:30,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:30,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:30,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:30,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105972460] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:30,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:30,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-11 20:03:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516188067] [2024-10-11 20:03:30,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:30,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 20:03:30,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 20:03:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:03:30,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:30,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 371 transitions, 8607 flow. Second operand has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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) [2024-10-11 20:03:30,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:30,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:30,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:31,703 INFO L124 PetriNetUnfolderBase]: 1130/2172 cut-off events. [2024-10-11 20:03:31,703 INFO L125 PetriNetUnfolderBase]: For 41101/41101 co-relation queries the response was YES. [2024-10-11 20:03:31,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16839 conditions, 2172 events. 1130/2172 cut-off events. For 41101/41101 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 13435 event pairs, 71 based on Foata normal form. 4/2176 useless extension candidates. Maximal degree in co-relation 16760. Up to 638 conditions per place. [2024-10-11 20:03:31,725 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 120 selfloop transitions, 226 changer transitions 67/414 dead transitions. [2024-10-11 20:03:31,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 414 transitions, 9714 flow [2024-10-11 20:03:31,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 20:03:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 20:03:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 204 transitions. [2024-10-11 20:03:31,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2024-10-11 20:03:31,727 INFO L175 Difference]: Start difference. First operand has 294 places, 371 transitions, 8607 flow. Second operand 21 states and 204 transitions. [2024-10-11 20:03:31,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 414 transitions, 9714 flow [2024-10-11 20:03:31,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 414 transitions, 8905 flow, removed 19 selfloop flow, removed 24 redundant places. [2024-10-11 20:03:31,899 INFO L231 Difference]: Finished difference. Result has 282 places, 315 transitions, 6972 flow [2024-10-11 20:03:31,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7810, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6972, PETRI_PLACES=282, PETRI_TRANSITIONS=315} [2024-10-11 20:03:31,900 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 256 predicate places. [2024-10-11 20:03:31,900 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 315 transitions, 6972 flow [2024-10-11 20:03:31,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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) [2024-10-11 20:03:31,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:31,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:31,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 20:03:32,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:32,101 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:32,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:32,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1835379864, now seen corresponding path program 15 times [2024-10-11 20:03:32,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:32,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845855461] [2024-10-11 20:03:32,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:32,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:32,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845855461] [2024-10-11 20:03:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845855461] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179480148] [2024-10-11 20:03:32,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:03:32,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:32,220 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:32,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 20:03:32,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 20:03:32,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:32,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:32,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:32,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:32,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179480148] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:32,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:32,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-11 20:03:32,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352981673] [2024-10-11 20:03:32,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:32,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:32,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:32,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:32,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:32,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:32,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 315 transitions, 6972 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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) [2024-10-11 20:03:32,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:32,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:32,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:33,288 INFO L124 PetriNetUnfolderBase]: 1337/2556 cut-off events. [2024-10-11 20:03:33,289 INFO L125 PetriNetUnfolderBase]: For 47397/47397 co-relation queries the response was YES. [2024-10-11 20:03:33,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18617 conditions, 2556 events. 1337/2556 cut-off events. For 47397/47397 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 16407 event pairs, 226 based on Foata normal form. 2/2558 useless extension candidates. Maximal degree in co-relation 18541. Up to 929 conditions per place. [2024-10-11 20:03:33,313 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 238 selfloop transitions, 209 changer transitions 15/463 dead transitions. [2024-10-11 20:03:33,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 463 transitions, 10765 flow [2024-10-11 20:03:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 20:03:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 20:03:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 145 transitions. [2024-10-11 20:03:33,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2024-10-11 20:03:33,314 INFO L175 Difference]: Start difference. First operand has 282 places, 315 transitions, 6972 flow. Second operand 15 states and 145 transitions. [2024-10-11 20:03:33,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 463 transitions, 10765 flow [2024-10-11 20:03:33,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 463 transitions, 10060 flow, removed 11 selfloop flow, removed 32 redundant places. [2024-10-11 20:03:33,487 INFO L231 Difference]: Finished difference. Result has 266 places, 387 transitions, 8902 flow [2024-10-11 20:03:33,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6420, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=8902, PETRI_PLACES=266, PETRI_TRANSITIONS=387} [2024-10-11 20:03:33,488 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 240 predicate places. [2024-10-11 20:03:33,488 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 387 transitions, 8902 flow [2024-10-11 20:03:33,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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) [2024-10-11 20:03:33,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:33,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:33,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:33,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-10-11 20:03:33,689 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:33,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:33,689 INFO L85 PathProgramCache]: Analyzing trace with hash -940066678, now seen corresponding path program 16 times [2024-10-11 20:03:33,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:33,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504054556] [2024-10-11 20:03:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:33,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:33,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504054556] [2024-10-11 20:03:33,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504054556] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:33,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093768681] [2024-10-11 20:03:33,803 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:03:33,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:33,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:33,805 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:33,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 20:03:33,842 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:03:33,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:33,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:33,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:33,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:34,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093768681] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:34,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:34,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-11 20:03:34,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755759985] [2024-10-11 20:03:34,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:34,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 20:03:34,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:34,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 20:03:34,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:03:34,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:34,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 387 transitions, 8902 flow. Second operand has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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) [2024-10-11 20:03:34,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:34,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:34,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:35,199 INFO L124 PetriNetUnfolderBase]: 1987/3761 cut-off events. [2024-10-11 20:03:35,199 INFO L125 PetriNetUnfolderBase]: For 73868/73868 co-relation queries the response was YES. [2024-10-11 20:03:35,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28338 conditions, 3761 events. 1987/3761 cut-off events. For 73868/73868 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 26184 event pairs, 164 based on Foata normal form. 13/3774 useless extension candidates. Maximal degree in co-relation 28259. Up to 1377 conditions per place. [2024-10-11 20:03:35,230 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 214 selfloop transitions, 374 changer transitions 83/672 dead transitions. [2024-10-11 20:03:35,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 672 transitions, 16177 flow [2024-10-11 20:03:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 20:03:35,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-10-11 20:03:35,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 275 transitions. [2024-10-11 20:03:35,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40922619047619047 [2024-10-11 20:03:35,232 INFO L175 Difference]: Start difference. First operand has 266 places, 387 transitions, 8902 flow. Second operand 28 states and 275 transitions. [2024-10-11 20:03:35,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 672 transitions, 16177 flow [2024-10-11 20:03:35,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 672 transitions, 15844 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-10-11 20:03:35,532 INFO L231 Difference]: Finished difference. Result has 299 places, 517 transitions, 13380 flow [2024-10-11 20:03:35,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=8705, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=13380, PETRI_PLACES=299, PETRI_TRANSITIONS=517} [2024-10-11 20:03:35,533 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 273 predicate places. [2024-10-11 20:03:35,533 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 517 transitions, 13380 flow [2024-10-11 20:03:35,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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) [2024-10-11 20:03:35,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:35,533 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:35,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:35,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:35,734 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:35,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:35,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1758797984, now seen corresponding path program 17 times [2024-10-11 20:03:35,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:35,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067970692] [2024-10-11 20:03:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:35,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:35,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:35,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067970692] [2024-10-11 20:03:35,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067970692] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:35,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641647649] [2024-10-11 20:03:35,842 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:03:35,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:35,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:35,844 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:35,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 20:03:35,893 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-10-11 20:03:35,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:35,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:03:35,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:35,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:36,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641647649] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:36,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:36,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2024-10-11 20:03:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705757757] [2024-10-11 20:03:36,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:36,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 20:03:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 20:03:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-10-11 20:03:36,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:36,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 517 transitions, 13380 flow. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 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) [2024-10-11 20:03:36,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:36,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:36,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:36,991 INFO L124 PetriNetUnfolderBase]: 1946/3653 cut-off events. [2024-10-11 20:03:36,991 INFO L125 PetriNetUnfolderBase]: For 84651/84651 co-relation queries the response was YES. [2024-10-11 20:03:37,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29784 conditions, 3653 events. 1946/3653 cut-off events. For 84651/84651 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 24976 event pairs, 177 based on Foata normal form. 27/3680 useless extension candidates. Maximal degree in co-relation 29693. Up to 1083 conditions per place. [2024-10-11 20:03:37,023 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 225 selfloop transitions, 230 changer transitions 143/599 dead transitions. [2024-10-11 20:03:37,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 599 transitions, 16068 flow [2024-10-11 20:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 20:03:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-11 20:03:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 187 transitions. [2024-10-11 20:03:37,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38958333333333334 [2024-10-11 20:03:37,024 INFO L175 Difference]: Start difference. First operand has 299 places, 517 transitions, 13380 flow. Second operand 20 states and 187 transitions. [2024-10-11 20:03:37,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 599 transitions, 16068 flow [2024-10-11 20:03:37,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 599 transitions, 15397 flow, removed 208 selfloop flow, removed 9 redundant places. [2024-10-11 20:03:37,521 INFO L231 Difference]: Finished difference. Result has 312 places, 428 transitions, 10916 flow [2024-10-11 20:03:37,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=12719, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10916, PETRI_PLACES=312, PETRI_TRANSITIONS=428} [2024-10-11 20:03:37,521 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 286 predicate places. [2024-10-11 20:03:37,522 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 428 transitions, 10916 flow [2024-10-11 20:03:37,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 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) [2024-10-11 20:03:37,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:37,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:37,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:37,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-10-11 20:03:37,722 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:37,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1964865824, now seen corresponding path program 18 times [2024-10-11 20:03:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:37,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349705167] [2024-10-11 20:03:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:37,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:37,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:37,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349705167] [2024-10-11 20:03:37,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349705167] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:37,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441304740] [2024-10-11 20:03:37,843 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:03:37,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:37,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:37,845 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:37,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 20:03:37,883 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-11 20:03:37,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:37,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:37,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:37,981 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:38,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441304740] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:38,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:38,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-11 20:03:38,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064312614] [2024-10-11 20:03:38,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:38,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:38,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:38,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:38,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:38,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:38,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 428 transitions, 10916 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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) [2024-10-11 20:03:38,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:38,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:38,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:38,861 INFO L124 PetriNetUnfolderBase]: 1235/2442 cut-off events. [2024-10-11 20:03:38,861 INFO L125 PetriNetUnfolderBase]: For 60396/60396 co-relation queries the response was YES. [2024-10-11 20:03:38,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20409 conditions, 2442 events. 1235/2442 cut-off events. For 60396/60396 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 16053 event pairs, 71 based on Foata normal form. 10/2452 useless extension candidates. Maximal degree in co-relation 20313. Up to 512 conditions per place. [2024-10-11 20:03:38,881 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 185 selfloop transitions, 174 changer transitions 114/474 dead transitions. [2024-10-11 20:03:38,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 474 transitions, 12376 flow [2024-10-11 20:03:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 20:03:38,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-11 20:03:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 154 transitions. [2024-10-11 20:03:38,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37745098039215685 [2024-10-11 20:03:38,883 INFO L175 Difference]: Start difference. First operand has 312 places, 428 transitions, 10916 flow. Second operand 17 states and 154 transitions. [2024-10-11 20:03:38,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 474 transitions, 12376 flow [2024-10-11 20:03:39,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 474 transitions, 11630 flow, removed 126 selfloop flow, removed 18 redundant places. [2024-10-11 20:03:39,196 INFO L231 Difference]: Finished difference. Result has 299 places, 332 transitions, 7976 flow [2024-10-11 20:03:39,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=10188, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7976, PETRI_PLACES=299, PETRI_TRANSITIONS=332} [2024-10-11 20:03:39,198 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 273 predicate places. [2024-10-11 20:03:39,198 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 332 transitions, 7976 flow [2024-10-11 20:03:39,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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) [2024-10-11 20:03:39,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:39,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:39,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:39,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:39,403 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:39,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash -15499886, now seen corresponding path program 19 times [2024-10-11 20:03:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577624038] [2024-10-11 20:03:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:39,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:39,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577624038] [2024-10-11 20:03:39,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577624038] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:39,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874306740] [2024-10-11 20:03:39,523 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:03:39,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:39,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:39,525 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:39,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-11 20:03:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:39,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:39,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:39,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:39,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874306740] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:39,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:39,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-11 20:03:39,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123231342] [2024-10-11 20:03:39,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:39,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:39,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:39,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:39,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:39,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:39,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 332 transitions, 7976 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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) [2024-10-11 20:03:39,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:39,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:39,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:40,829 INFO L124 PetriNetUnfolderBase]: 1480/2938 cut-off events. [2024-10-11 20:03:40,829 INFO L125 PetriNetUnfolderBase]: For 62779/62779 co-relation queries the response was YES. [2024-10-11 20:03:40,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22067 conditions, 2938 events. 1480/2938 cut-off events. For 62779/62779 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 20079 event pairs, 109 based on Foata normal form. 10/2948 useless extension candidates. Maximal degree in co-relation 21979. Up to 616 conditions per place. [2024-10-11 20:03:40,853 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 215 selfloop transitions, 237 changer transitions 87/540 dead transitions. [2024-10-11 20:03:40,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 540 transitions, 12926 flow [2024-10-11 20:03:40,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 20:03:40,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-10-11 20:03:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 254 transitions. [2024-10-11 20:03:40,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3649425287356322 [2024-10-11 20:03:40,855 INFO L175 Difference]: Start difference. First operand has 299 places, 332 transitions, 7976 flow. Second operand 29 states and 254 transitions. [2024-10-11 20:03:40,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 540 transitions, 12926 flow [2024-10-11 20:03:41,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 540 transitions, 12096 flow, removed 78 selfloop flow, removed 21 redundant places. [2024-10-11 20:03:41,107 INFO L231 Difference]: Finished difference. Result has 305 places, 385 transitions, 9660 flow [2024-10-11 20:03:41,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7428, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=9660, PETRI_PLACES=305, PETRI_TRANSITIONS=385} [2024-10-11 20:03:41,108 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 279 predicate places. [2024-10-11 20:03:41,108 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 385 transitions, 9660 flow [2024-10-11 20:03:41,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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) [2024-10-11 20:03:41,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:41,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:41,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:41,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-10-11 20:03:41,309 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:41,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:41,309 INFO L85 PathProgramCache]: Analyzing trace with hash -748573106, now seen corresponding path program 20 times [2024-10-11 20:03:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:41,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544159954] [2024-10-11 20:03:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:41,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:41,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:41,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544159954] [2024-10-11 20:03:41,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544159954] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:41,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290547131] [2024-10-11 20:03:41,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:03:41,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:41,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:41,433 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:41,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-11 20:03:41,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:41,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:41,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:03:41,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:41,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:41,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:41,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:41,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290547131] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:41,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:41,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-10-11 20:03:41,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047944433] [2024-10-11 20:03:41,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:41,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 20:03:41,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:41,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 20:03:41,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-10-11 20:03:41,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:41,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 385 transitions, 9660 flow. Second operand has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 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) [2024-10-11 20:03:41,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:41,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:41,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:42,494 INFO L124 PetriNetUnfolderBase]: 1093/2261 cut-off events. [2024-10-11 20:03:42,495 INFO L125 PetriNetUnfolderBase]: For 48736/48736 co-relation queries the response was YES. [2024-10-11 20:03:42,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17828 conditions, 2261 events. 1093/2261 cut-off events. For 48736/48736 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 15274 event pairs, 208 based on Foata normal form. 4/2265 useless extension candidates. Maximal degree in co-relation 17739. Up to 1187 conditions per place. [2024-10-11 20:03:42,513 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 225 selfloop transitions, 196 changer transitions 19/441 dead transitions. [2024-10-11 20:03:42,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 441 transitions, 11415 flow [2024-10-11 20:03:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 20:03:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-11 20:03:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 169 transitions. [2024-10-11 20:03:42,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35208333333333336 [2024-10-11 20:03:42,514 INFO L175 Difference]: Start difference. First operand has 305 places, 385 transitions, 9660 flow. Second operand 20 states and 169 transitions. [2024-10-11 20:03:42,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 441 transitions, 11415 flow [2024-10-11 20:03:42,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 441 transitions, 10885 flow, removed 65 selfloop flow, removed 16 redundant places. [2024-10-11 20:03:42,678 INFO L231 Difference]: Finished difference. Result has 292 places, 382 transitions, 9516 flow [2024-10-11 20:03:42,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9177, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=9516, PETRI_PLACES=292, PETRI_TRANSITIONS=382} [2024-10-11 20:03:42,678 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 266 predicate places. [2024-10-11 20:03:42,678 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 382 transitions, 9516 flow [2024-10-11 20:03:42,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 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) [2024-10-11 20:03:42,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:42,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:42,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-11 20:03:42,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-10-11 20:03:42,879 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:42,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:42,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1066077746, now seen corresponding path program 21 times [2024-10-11 20:03:42,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:42,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376451762] [2024-10-11 20:03:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:42,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:42,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:42,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:42,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376451762] [2024-10-11 20:03:42,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376451762] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:42,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478857409] [2024-10-11 20:03:42,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:03:42,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:42,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:42,970 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:42,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-11 20:03:43,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-11 20:03:43,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:43,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:43,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:43,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:43,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478857409] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:43,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:43,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-11 20:03:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86829120] [2024-10-11 20:03:43,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:43,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:43,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:43,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:43,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:43,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:43,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 382 transitions, 9516 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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) [2024-10-11 20:03:43,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:43,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:43,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:43,799 INFO L124 PetriNetUnfolderBase]: 1131/2377 cut-off events. [2024-10-11 20:03:43,799 INFO L125 PetriNetUnfolderBase]: For 43155/43155 co-relation queries the response was YES. [2024-10-11 20:03:43,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17554 conditions, 2377 events. 1131/2377 cut-off events. For 43155/43155 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 16494 event pairs, 165 based on Foata normal form. 7/2384 useless extension candidates. Maximal degree in co-relation 17468. Up to 836 conditions per place. [2024-10-11 20:03:43,818 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 187 selfloop transitions, 143 changer transitions 94/425 dead transitions. [2024-10-11 20:03:43,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 425 transitions, 10851 flow [2024-10-11 20:03:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 20:03:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 20:03:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 125 transitions. [2024-10-11 20:03:43,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40064102564102566 [2024-10-11 20:03:43,819 INFO L175 Difference]: Start difference. First operand has 292 places, 382 transitions, 9516 flow. Second operand 13 states and 125 transitions. [2024-10-11 20:03:43,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 425 transitions, 10851 flow [2024-10-11 20:03:43,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 425 transitions, 10546 flow, removed 19 selfloop flow, removed 16 redundant places. [2024-10-11 20:03:43,983 INFO L231 Difference]: Finished difference. Result has 285 places, 303 transitions, 7519 flow [2024-10-11 20:03:43,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9223, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7519, PETRI_PLACES=285, PETRI_TRANSITIONS=303} [2024-10-11 20:03:43,984 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 259 predicate places. [2024-10-11 20:03:43,984 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 303 transitions, 7519 flow [2024-10-11 20:03:43,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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) [2024-10-11 20:03:43,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:43,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:43,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:44,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:44,187 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:44,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:44,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1428059856, now seen corresponding path program 22 times [2024-10-11 20:03:44,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:44,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587771841] [2024-10-11 20:03:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:44,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:44,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:44,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587771841] [2024-10-11 20:03:44,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587771841] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:44,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106102095] [2024-10-11 20:03:44,310 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:03:44,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:44,312 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:44,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-11 20:03:44,354 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:03:44,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:44,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:44,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:44,467 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:44,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:44,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106102095] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:44,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:44,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-11 20:03:44,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143965903] [2024-10-11 20:03:44,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:44,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:44,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:44,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:44,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:44,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:44,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 303 transitions, 7519 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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) [2024-10-11 20:03:44,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:44,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:44,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:45,176 INFO L124 PetriNetUnfolderBase]: 913/1954 cut-off events. [2024-10-11 20:03:45,176 INFO L125 PetriNetUnfolderBase]: For 35095/35095 co-relation queries the response was YES. [2024-10-11 20:03:45,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13977 conditions, 1954 events. 913/1954 cut-off events. For 35095/35095 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13138 event pairs, 145 based on Foata normal form. 6/1960 useless extension candidates. Maximal degree in co-relation 13894. Up to 808 conditions per place. [2024-10-11 20:03:45,192 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 170 selfloop transitions, 129 changer transitions 38/338 dead transitions. [2024-10-11 20:03:45,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 338 transitions, 8493 flow [2024-10-11 20:03:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 20:03:45,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 20:03:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 133 transitions. [2024-10-11 20:03:45,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36944444444444446 [2024-10-11 20:03:45,193 INFO L175 Difference]: Start difference. First operand has 285 places, 303 transitions, 7519 flow. Second operand 15 states and 133 transitions. [2024-10-11 20:03:45,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 338 transitions, 8493 flow [2024-10-11 20:03:45,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 338 transitions, 7864 flow, removed 26 selfloop flow, removed 20 redundant places. [2024-10-11 20:03:45,345 INFO L231 Difference]: Finished difference. Result has 271 places, 278 transitions, 6566 flow [2024-10-11 20:03:45,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6901, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6566, PETRI_PLACES=271, PETRI_TRANSITIONS=278} [2024-10-11 20:03:45,346 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 245 predicate places. [2024-10-11 20:03:45,346 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 278 transitions, 6566 flow [2024-10-11 20:03:45,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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) [2024-10-11 20:03:45,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:45,347 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:45,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:45,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:45,547 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:45,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:45,548 INFO L85 PathProgramCache]: Analyzing trace with hash 428600812, now seen corresponding path program 23 times [2024-10-11 20:03:45,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:45,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777905202] [2024-10-11 20:03:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:45,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:45,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777905202] [2024-10-11 20:03:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777905202] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098902268] [2024-10-11 20:03:45,650 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:03:45,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:45,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:45,651 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:45,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-11 20:03:45,686 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:45,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:45,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:03:45,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:45,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:45,758 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:03:45,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098902268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:45,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:03:45,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-10-11 20:03:45,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154020354] [2024-10-11 20:03:45,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:45,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:45,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:45,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:45,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-11 20:03:45,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:45,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 278 transitions, 6566 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2024-10-11 20:03:45,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:45,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:45,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:46,058 INFO L124 PetriNetUnfolderBase]: 857/1838 cut-off events. [2024-10-11 20:03:46,058 INFO L125 PetriNetUnfolderBase]: For 31303/31303 co-relation queries the response was YES. [2024-10-11 20:03:46,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12812 conditions, 1838 events. 857/1838 cut-off events. For 31303/31303 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 12226 event pairs, 175 based on Foata normal form. 3/1841 useless extension candidates. Maximal degree in co-relation 12733. Up to 878 conditions per place. [2024-10-11 20:03:46,072 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 178 selfloop transitions, 109 changer transitions 17/305 dead transitions. [2024-10-11 20:03:46,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 305 transitions, 7450 flow [2024-10-11 20:03:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:03:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:03:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-10-11 20:03:46,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-10-11 20:03:46,073 INFO L175 Difference]: Start difference. First operand has 271 places, 278 transitions, 6566 flow. Second operand 9 states and 92 transitions. [2024-10-11 20:03:46,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 305 transitions, 7450 flow [2024-10-11 20:03:46,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 305 transitions, 6993 flow, removed 21 selfloop flow, removed 17 redundant places. [2024-10-11 20:03:46,175 INFO L231 Difference]: Finished difference. Result has 257 places, 274 transitions, 6277 flow [2024-10-11 20:03:46,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6140, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6277, PETRI_PLACES=257, PETRI_TRANSITIONS=274} [2024-10-11 20:03:46,176 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 231 predicate places. [2024-10-11 20:03:46,176 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 274 transitions, 6277 flow [2024-10-11 20:03:46,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2024-10-11 20:03:46,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:46,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:46,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:46,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-10-11 20:03:46,377 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:46,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1843415730, now seen corresponding path program 24 times [2024-10-11 20:03:46,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:46,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177671148] [2024-10-11 20:03:46,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:46,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:46,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:46,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177671148] [2024-10-11 20:03:46,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177671148] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:46,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009050521] [2024-10-11 20:03:46,459 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:03:46,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:46,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:46,461 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:46,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-11 20:03:46,497 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-11 20:03:46,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:46,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:03:46,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:46,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:46,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009050521] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:46,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:46,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-10-11 20:03:46,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157407715] [2024-10-11 20:03:46,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:46,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 20:03:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 20:03:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-11 20:03:46,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:46,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 274 transitions, 6277 flow. Second operand has 22 states, 22 states have (on average 5.545454545454546) internal successors, (122), 22 states have internal predecessors, (122), 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) [2024-10-11 20:03:46,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:46,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:46,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:47,233 INFO L124 PetriNetUnfolderBase]: 802/1703 cut-off events. [2024-10-11 20:03:47,233 INFO L125 PetriNetUnfolderBase]: For 27561/27561 co-relation queries the response was YES. [2024-10-11 20:03:47,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11754 conditions, 1703 events. 802/1703 cut-off events. For 27561/27561 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10958 event pairs, 101 based on Foata normal form. 4/1707 useless extension candidates. Maximal degree in co-relation 11677. Up to 681 conditions per place. [2024-10-11 20:03:47,243 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 134 selfloop transitions, 154 changer transitions 20/309 dead transitions. [2024-10-11 20:03:47,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 309 transitions, 7262 flow [2024-10-11 20:03:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 20:03:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-11 20:03:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 140 transitions. [2024-10-11 20:03:47,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3645833333333333 [2024-10-11 20:03:47,244 INFO L175 Difference]: Start difference. First operand has 257 places, 274 transitions, 6277 flow. Second operand 16 states and 140 transitions. [2024-10-11 20:03:47,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 309 transitions, 7262 flow [2024-10-11 20:03:47,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 309 transitions, 6984 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-10-11 20:03:47,328 INFO L231 Difference]: Finished difference. Result has 259 places, 264 transitions, 6101 flow [2024-10-11 20:03:47,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5958, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6101, PETRI_PLACES=259, PETRI_TRANSITIONS=264} [2024-10-11 20:03:47,329 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 233 predicate places. [2024-10-11 20:03:47,329 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 264 transitions, 6101 flow [2024-10-11 20:03:47,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.545454545454546) internal successors, (122), 22 states have internal predecessors, (122), 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) [2024-10-11 20:03:47,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:47,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:47,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:47,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-10-11 20:03:47,530 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:47,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:47,530 INFO L85 PathProgramCache]: Analyzing trace with hash -106628990, now seen corresponding path program 25 times [2024-10-11 20:03:47,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:47,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103031534] [2024-10-11 20:03:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:47,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:47,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103031534] [2024-10-11 20:03:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103031534] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451654657] [2024-10-11 20:03:47,618 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:03:47,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:47,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:47,619 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:47,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-11 20:03:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:47,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:03:47,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:47,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:47,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451654657] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:47,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:47,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-11 20:03:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613758587] [2024-10-11 20:03:47,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:47,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 20:03:47,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:47,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 20:03:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:03:47,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:47,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 264 transitions, 6101 flow. Second operand has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 states have internal predecessors, (115), 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) [2024-10-11 20:03:47,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:47,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:47,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:48,442 INFO L124 PetriNetUnfolderBase]: 769/1622 cut-off events. [2024-10-11 20:03:48,442 INFO L125 PetriNetUnfolderBase]: For 27513/27513 co-relation queries the response was YES. [2024-10-11 20:03:48,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11521 conditions, 1622 events. 769/1622 cut-off events. For 27513/27513 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10225 event pairs, 53 based on Foata normal form. 2/1624 useless extension candidates. Maximal degree in co-relation 11445. Up to 457 conditions per place. [2024-10-11 20:03:48,454 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 86 selfloop transitions, 190 changer transitions 19/296 dead transitions. [2024-10-11 20:03:48,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 296 transitions, 6836 flow [2024-10-11 20:03:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 20:03:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-11 20:03:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 157 transitions. [2024-10-11 20:03:48,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36342592592592593 [2024-10-11 20:03:48,455 INFO L175 Difference]: Start difference. First operand has 259 places, 264 transitions, 6101 flow. Second operand 18 states and 157 transitions. [2024-10-11 20:03:48,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 296 transitions, 6836 flow [2024-10-11 20:03:48,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 296 transitions, 6638 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-10-11 20:03:48,535 INFO L231 Difference]: Finished difference. Result has 260 places, 255 transitions, 6073 flow [2024-10-11 20:03:48,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5905, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6073, PETRI_PLACES=260, PETRI_TRANSITIONS=255} [2024-10-11 20:03:48,536 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 234 predicate places. [2024-10-11 20:03:48,536 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 255 transitions, 6073 flow [2024-10-11 20:03:48,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 states have internal predecessors, (115), 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) [2024-10-11 20:03:48,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:48,536 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:48,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:48,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,27 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:48,737 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:48,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:48,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1416447660, now seen corresponding path program 26 times [2024-10-11 20:03:48,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:48,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610008621] [2024-10-11 20:03:48,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:48,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:48,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:48,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610008621] [2024-10-11 20:03:48,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610008621] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:48,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521127229] [2024-10-11 20:03:48,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:03:48,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:48,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:48,779 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:48,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-11 20:03:48,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:48,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:48,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:03:48,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:48,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:48,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521127229] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:48,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:48,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-10-11 20:03:48,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365281805] [2024-10-11 20:03:48,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:48,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:03:48,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:48,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:03:48,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:03:48,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:48,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 255 transitions, 6073 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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) [2024-10-11 20:03:48,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:48,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:48,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:49,124 INFO L124 PetriNetUnfolderBase]: 567/1310 cut-off events. [2024-10-11 20:03:49,124 INFO L125 PetriNetUnfolderBase]: For 24904/24904 co-relation queries the response was YES. [2024-10-11 20:03:49,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10080 conditions, 1310 events. 567/1310 cut-off events. For 24904/24904 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 8654 event pairs, 106 based on Foata normal form. 12/1290 useless extension candidates. Maximal degree in co-relation 10004. Up to 900 conditions per place. [2024-10-11 20:03:49,134 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 163 selfloop transitions, 49 changer transitions 2/280 dead transitions. [2024-10-11 20:03:49,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 280 transitions, 6704 flow [2024-10-11 20:03:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:03:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 20:03:49,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 95 transitions. [2024-10-11 20:03:49,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2024-10-11 20:03:49,135 INFO L175 Difference]: Start difference. First operand has 260 places, 255 transitions, 6073 flow. Second operand 7 states and 95 transitions. [2024-10-11 20:03:49,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 280 transitions, 6704 flow [2024-10-11 20:03:49,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 280 transitions, 6245 flow, removed 5 selfloop flow, removed 19 redundant places. [2024-10-11 20:03:49,209 INFO L231 Difference]: Finished difference. Result has 235 places, 251 transitions, 5643 flow [2024-10-11 20:03:49,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5531, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5643, PETRI_PLACES=235, PETRI_TRANSITIONS=251} [2024-10-11 20:03:49,209 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 209 predicate places. [2024-10-11 20:03:49,209 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 251 transitions, 5643 flow [2024-10-11 20:03:49,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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) [2024-10-11 20:03:49,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:49,209 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:49,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:49,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,28 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:49,410 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:49,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:49,410 INFO L85 PathProgramCache]: Analyzing trace with hash -79644419, now seen corresponding path program 27 times [2024-10-11 20:03:49,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:49,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698934320] [2024-10-11 20:03:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:49,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:49,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:49,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698934320] [2024-10-11 20:03:49,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698934320] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:49,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217370296] [2024-10-11 20:03:49,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:03:49,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:49,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:49,443 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:49,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-11 20:03:49,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 20:03:49,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:49,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 20:03:49,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:49,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:49,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217370296] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:49,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:49,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 11] total 23 [2024-10-11 20:03:49,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646102261] [2024-10-11 20:03:49,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:49,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 20:03:49,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:49,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 20:03:49,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-10-11 20:03:49,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:49,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 251 transitions, 5643 flow. Second operand has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 23 states have internal predecessors, (137), 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) [2024-10-11 20:03:49,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:49,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:49,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:50,572 INFO L124 PetriNetUnfolderBase]: 945/1951 cut-off events. [2024-10-11 20:03:50,572 INFO L125 PetriNetUnfolderBase]: For 38350/38350 co-relation queries the response was YES. [2024-10-11 20:03:50,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14406 conditions, 1951 events. 945/1951 cut-off events. For 38350/38350 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 12583 event pairs, 215 based on Foata normal form. 29/1980 useless extension candidates. Maximal degree in co-relation 14333. Up to 705 conditions per place. [2024-10-11 20:03:50,587 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 189 selfloop transitions, 175 changer transitions 43/408 dead transitions. [2024-10-11 20:03:50,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 408 transitions, 9121 flow [2024-10-11 20:03:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 20:03:50,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-11 20:03:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 276 transitions. [2024-10-11 20:03:50,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3709677419354839 [2024-10-11 20:03:50,588 INFO L175 Difference]: Start difference. First operand has 235 places, 251 transitions, 5643 flow. Second operand 31 states and 276 transitions. [2024-10-11 20:03:50,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 408 transitions, 9121 flow [2024-10-11 20:03:50,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 408 transitions, 9031 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-10-11 20:03:50,696 INFO L231 Difference]: Finished difference. Result has 275 places, 309 transitions, 7572 flow [2024-10-11 20:03:50,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5416, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=7572, PETRI_PLACES=275, PETRI_TRANSITIONS=309} [2024-10-11 20:03:50,696 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 249 predicate places. [2024-10-11 20:03:50,697 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 309 transitions, 7572 flow [2024-10-11 20:03:50,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 23 states have internal predecessors, (137), 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) [2024-10-11 20:03:50,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:50,697 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:50,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-10-11 20:03:50,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-10-11 20:03:50,898 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:50,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:50,898 INFO L85 PathProgramCache]: Analyzing trace with hash -515965974, now seen corresponding path program 28 times [2024-10-11 20:03:50,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:50,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477665631] [2024-10-11 20:03:50,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:50,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:50,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:50,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477665631] [2024-10-11 20:03:50,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477665631] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:50,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704355037] [2024-10-11 20:03:50,932 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:03:50,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:50,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:50,933 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:50,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-11 20:03:50,971 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:03:50,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:50,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:03:50,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:50,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:51,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704355037] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:51,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:51,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-10-11 20:03:51,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658366973] [2024-10-11 20:03:51,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:51,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 20:03:51,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:51,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 20:03:51,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:03:51,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:51,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 309 transitions, 7572 flow. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 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) [2024-10-11 20:03:51,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:51,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:51,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:51,465 INFO L124 PetriNetUnfolderBase]: 726/1603 cut-off events. [2024-10-11 20:03:51,466 INFO L125 PetriNetUnfolderBase]: For 36225/36225 co-relation queries the response was YES. [2024-10-11 20:03:51,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13265 conditions, 1603 events. 726/1603 cut-off events. For 36225/36225 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10618 event pairs, 226 based on Foata normal form. 23/1601 useless extension candidates. Maximal degree in co-relation 13174. Up to 679 conditions per place. [2024-10-11 20:03:51,479 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 201 selfloop transitions, 107 changer transitions 4/378 dead transitions. [2024-10-11 20:03:51,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 378 transitions, 8834 flow [2024-10-11 20:03:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 20:03:51,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 20:03:51,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 224 transitions. [2024-10-11 20:03:51,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49122807017543857 [2024-10-11 20:03:51,480 INFO L175 Difference]: Start difference. First operand has 275 places, 309 transitions, 7572 flow. Second operand 19 states and 224 transitions. [2024-10-11 20:03:51,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 378 transitions, 8834 flow [2024-10-11 20:03:51,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 378 transitions, 8024 flow, removed 309 selfloop flow, removed 16 redundant places. [2024-10-11 20:03:51,648 INFO L231 Difference]: Finished difference. Result has 279 places, 314 transitions, 7259 flow [2024-10-11 20:03:51,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6560, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7259, PETRI_PLACES=279, PETRI_TRANSITIONS=314} [2024-10-11 20:03:51,649 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 253 predicate places. [2024-10-11 20:03:51,649 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 314 transitions, 7259 flow [2024-10-11 20:03:51,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 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) [2024-10-11 20:03:51,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:51,649 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:51,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:51,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,30 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:51,850 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:51,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash 169799022, now seen corresponding path program 29 times [2024-10-11 20:03:51,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:51,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592274484] [2024-10-11 20:03:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:51,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:51,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:51,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592274484] [2024-10-11 20:03:51,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592274484] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:51,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093338296] [2024-10-11 20:03:51,880 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:03:51,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:51,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:51,881 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:51,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-11 20:03:51,917 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:51,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:51,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:03:51,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:51,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:51,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093338296] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:51,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:51,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2024-10-11 20:03:51,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361309073] [2024-10-11 20:03:51,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:51,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 20:03:51,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:51,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 20:03:51,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:03:51,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:03:51,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 314 transitions, 7259 flow. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 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) [2024-10-11 20:03:51,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:51,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:03:51,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:52,354 INFO L124 PetriNetUnfolderBase]: 764/1690 cut-off events. [2024-10-11 20:03:52,355 INFO L125 PetriNetUnfolderBase]: For 34188/34188 co-relation queries the response was YES. [2024-10-11 20:03:52,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13318 conditions, 1690 events. 764/1690 cut-off events. For 34188/34188 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11243 event pairs, 264 based on Foata normal form. 16/1681 useless extension candidates. Maximal degree in co-relation 13230. Up to 874 conditions per place. [2024-10-11 20:03:52,368 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 196 selfloop transitions, 97 changer transitions 4/358 dead transitions. [2024-10-11 20:03:52,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 358 transitions, 8329 flow [2024-10-11 20:03:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 20:03:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 20:03:52,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 152 transitions. [2024-10-11 20:03:52,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2024-10-11 20:03:52,369 INFO L175 Difference]: Start difference. First operand has 279 places, 314 transitions, 7259 flow. Second operand 13 states and 152 transitions. [2024-10-11 20:03:52,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 358 transitions, 8329 flow [2024-10-11 20:03:52,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 358 transitions, 8112 flow, removed 90 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:52,485 INFO L231 Difference]: Finished difference. Result has 286 places, 325 transitions, 7654 flow [2024-10-11 20:03:52,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6927, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7654, PETRI_PLACES=286, PETRI_TRANSITIONS=325} [2024-10-11 20:03:52,486 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 260 predicate places. [2024-10-11 20:03:52,486 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 325 transitions, 7654 flow [2024-10-11 20:03:52,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 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) [2024-10-11 20:03:52,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:52,486 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:52,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:52,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-10-11 20:03:52,687 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:52,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1192335205, now seen corresponding path program 30 times [2024-10-11 20:03:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:52,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036377807] [2024-10-11 20:03:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:52,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:52,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:52,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036377807] [2024-10-11 20:03:52,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036377807] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:52,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839903574] [2024-10-11 20:03:52,806 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:03:52,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:52,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:52,807 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:52,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-11 20:03:52,844 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-11 20:03:52,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:52,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 20:03:52,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:52,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:53,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839903574] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:53,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:53,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 27 [2024-10-11 20:03:53,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157798394] [2024-10-11 20:03:53,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:53,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 20:03:53,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:53,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 20:03:53,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:03:53,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:53,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 325 transitions, 7654 flow. Second operand has 28 states, 28 states have (on average 5.678571428571429) internal successors, (159), 28 states have internal predecessors, (159), 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) [2024-10-11 20:03:53,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:53,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:53,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:53,960 INFO L124 PetriNetUnfolderBase]: 1298/2616 cut-off events. [2024-10-11 20:03:53,960 INFO L125 PetriNetUnfolderBase]: For 51274/51274 co-relation queries the response was YES. [2024-10-11 20:03:53,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20777 conditions, 2616 events. 1298/2616 cut-off events. For 51274/51274 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 17480 event pairs, 59 based on Foata normal form. 11/2627 useless extension candidates. Maximal degree in co-relation 20686. Up to 550 conditions per place. [2024-10-11 20:03:53,990 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 251 selfloop transitions, 182 changer transitions 93/527 dead transitions. [2024-10-11 20:03:53,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 527 transitions, 12695 flow [2024-10-11 20:03:53,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 20:03:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 20:03:53,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 191 transitions. [2024-10-11 20:03:53,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37896825396825395 [2024-10-11 20:03:53,991 INFO L175 Difference]: Start difference. First operand has 286 places, 325 transitions, 7654 flow. Second operand 21 states and 191 transitions. [2024-10-11 20:03:53,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 527 transitions, 12695 flow [2024-10-11 20:03:54,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 527 transitions, 12566 flow, removed 36 selfloop flow, removed 7 redundant places. [2024-10-11 20:03:54,172 INFO L231 Difference]: Finished difference. Result has 306 places, 367 transitions, 9020 flow [2024-10-11 20:03:54,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7560, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9020, PETRI_PLACES=306, PETRI_TRANSITIONS=367} [2024-10-11 20:03:54,172 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 280 predicate places. [2024-10-11 20:03:54,173 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 367 transitions, 9020 flow [2024-10-11 20:03:54,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.678571428571429) internal successors, (159), 28 states have internal predecessors, (159), 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) [2024-10-11 20:03:54,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:54,173 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:54,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-10-11 20:03:54,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-10-11 20:03:54,374 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:54,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:54,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1183618605, now seen corresponding path program 31 times [2024-10-11 20:03:54,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:54,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643169238] [2024-10-11 20:03:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:54,483 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:54,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:54,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643169238] [2024-10-11 20:03:54,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643169238] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:54,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544216261] [2024-10-11 20:03:54,484 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:03:54,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:54,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:54,486 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:54,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-11 20:03:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:54,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:03:54,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:54,630 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:54,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544216261] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:54,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:54,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-10-11 20:03:54,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433995270] [2024-10-11 20:03:54,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:54,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 20:03:54,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 20:03:54,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:03:54,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:54,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 367 transitions, 9020 flow. Second operand has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 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) [2024-10-11 20:03:54,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:54,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:54,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:55,562 INFO L124 PetriNetUnfolderBase]: 1206/2424 cut-off events. [2024-10-11 20:03:55,563 INFO L125 PetriNetUnfolderBase]: For 54958/54958 co-relation queries the response was YES. [2024-10-11 20:03:55,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20308 conditions, 2424 events. 1206/2424 cut-off events. For 54958/54958 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 15711 event pairs, 26 based on Foata normal form. 9/2433 useless extension candidates. Maximal degree in co-relation 20211. Up to 563 conditions per place. [2024-10-11 20:03:55,584 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 230 selfloop transitions, 165 changer transitions 76/472 dead transitions. [2024-10-11 20:03:55,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 472 transitions, 11715 flow [2024-10-11 20:03:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 20:03:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-11 20:03:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 165 transitions. [2024-10-11 20:03:55,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3819444444444444 [2024-10-11 20:03:55,585 INFO L175 Difference]: Start difference. First operand has 306 places, 367 transitions, 9020 flow. Second operand 18 states and 165 transitions. [2024-10-11 20:03:55,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 472 transitions, 11715 flow [2024-10-11 20:03:55,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 472 transitions, 11184 flow, removed 93 selfloop flow, removed 18 redundant places. [2024-10-11 20:03:55,807 INFO L231 Difference]: Finished difference. Result has 300 places, 347 transitions, 8476 flow [2024-10-11 20:03:55,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=8563, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8476, PETRI_PLACES=300, PETRI_TRANSITIONS=347} [2024-10-11 20:03:55,808 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 274 predicate places. [2024-10-11 20:03:55,808 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 347 transitions, 8476 flow [2024-10-11 20:03:55,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 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) [2024-10-11 20:03:55,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:55,808 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:55,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:56,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,33 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:56,009 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:56,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:56,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1898151461, now seen corresponding path program 32 times [2024-10-11 20:03:56,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:56,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296681810] [2024-10-11 20:03:56,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:56,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:56,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:56,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296681810] [2024-10-11 20:03:56,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296681810] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492135493] [2024-10-11 20:03:56,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:03:56,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:56,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:56,137 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:56,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-10-11 20:03:56,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:03:56,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:56,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 20:03:56,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:56,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:56,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492135493] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:56,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:56,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 27 [2024-10-11 20:03:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799591427] [2024-10-11 20:03:56,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:56,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 20:03:56,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:56,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 20:03:56,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:03:56,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:56,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 347 transitions, 8476 flow. Second operand has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 28 states have internal predecessors, (153), 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) [2024-10-11 20:03:56,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:56,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:56,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:57,598 INFO L124 PetriNetUnfolderBase]: 1066/2139 cut-off events. [2024-10-11 20:03:57,598 INFO L125 PetriNetUnfolderBase]: For 50311/50311 co-relation queries the response was YES. [2024-10-11 20:03:57,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18264 conditions, 2139 events. 1066/2139 cut-off events. For 50311/50311 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 13560 event pairs, 38 based on Foata normal form. 7/2146 useless extension candidates. Maximal degree in co-relation 18171. Up to 564 conditions per place. [2024-10-11 20:03:57,616 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 222 selfloop transitions, 226 changer transitions 35/484 dead transitions. [2024-10-11 20:03:57,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 484 transitions, 11882 flow [2024-10-11 20:03:57,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 20:03:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-11 20:03:57,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 256 transitions. [2024-10-11 20:03:57,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34408602150537637 [2024-10-11 20:03:57,617 INFO L175 Difference]: Start difference. First operand has 300 places, 347 transitions, 8476 flow. Second operand 31 states and 256 transitions. [2024-10-11 20:03:57,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 484 transitions, 11882 flow [2024-10-11 20:03:57,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 484 transitions, 11307 flow, removed 37 selfloop flow, removed 23 redundant places. [2024-10-11 20:03:57,760 INFO L231 Difference]: Finished difference. Result has 305 places, 383 transitions, 9587 flow [2024-10-11 20:03:57,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=8022, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=9587, PETRI_PLACES=305, PETRI_TRANSITIONS=383} [2024-10-11 20:03:57,761 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 279 predicate places. [2024-10-11 20:03:57,761 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 383 transitions, 9587 flow [2024-10-11 20:03:57,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 28 states have internal predecessors, (153), 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) [2024-10-11 20:03:57,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:57,761 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:57,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-10-11 20:03:57,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,34 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:57,962 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:57,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:57,962 INFO L85 PathProgramCache]: Analyzing trace with hash 988073979, now seen corresponding path program 33 times [2024-10-11 20:03:57,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:57,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000738126] [2024-10-11 20:03:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:57,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:58,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:58,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000738126] [2024-10-11 20:03:58,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000738126] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:58,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476300920] [2024-10-11 20:03:58,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:03:58,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:58,102 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:58,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-11 20:03:58,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-11 20:03:58,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:58,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:03:58,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:58,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:58,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476300920] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:58,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:58,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-10-11 20:03:58,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803775998] [2024-10-11 20:03:58,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:58,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 20:03:58,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:58,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 20:03:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:03:58,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:58,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 383 transitions, 9587 flow. Second operand has 28 states, 28 states have (on average 5.321428571428571) internal successors, (149), 28 states have internal predecessors, (149), 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) [2024-10-11 20:03:58,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:58,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:58,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:59,090 INFO L124 PetriNetUnfolderBase]: 977/1924 cut-off events. [2024-10-11 20:03:59,091 INFO L125 PetriNetUnfolderBase]: For 45618/45618 co-relation queries the response was YES. [2024-10-11 20:03:59,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17015 conditions, 1924 events. 977/1924 cut-off events. For 45618/45618 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 11506 event pairs, 26 based on Foata normal form. 1/1925 useless extension candidates. Maximal degree in co-relation 16928. Up to 550 conditions per place. [2024-10-11 20:03:59,106 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 232 selfloop transitions, 183 changer transitions 17/433 dead transitions. [2024-10-11 20:03:59,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 433 transitions, 10971 flow [2024-10-11 20:03:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 20:03:59,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 20:03:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 142 transitions. [2024-10-11 20:03:59,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39444444444444443 [2024-10-11 20:03:59,107 INFO L175 Difference]: Start difference. First operand has 305 places, 383 transitions, 9587 flow. Second operand 15 states and 142 transitions. [2024-10-11 20:03:59,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 433 transitions, 10971 flow [2024-10-11 20:03:59,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 433 transitions, 10370 flow, removed 158 selfloop flow, removed 13 redundant places. [2024-10-11 20:03:59,246 INFO L231 Difference]: Finished difference. Result has 306 places, 376 transitions, 9295 flow [2024-10-11 20:03:59,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9020, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9295, PETRI_PLACES=306, PETRI_TRANSITIONS=376} [2024-10-11 20:03:59,246 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 280 predicate places. [2024-10-11 20:03:59,247 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 376 transitions, 9295 flow [2024-10-11 20:03:59,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.321428571428571) internal successors, (149), 28 states have internal predecessors, (149), 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) [2024-10-11 20:03:59,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:59,247 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:59,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-10-11 20:03:59,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2024-10-11 20:03:59,448 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:03:59,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:59,448 INFO L85 PathProgramCache]: Analyzing trace with hash 33843301, now seen corresponding path program 34 times [2024-10-11 20:03:59,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:59,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910004677] [2024-10-11 20:03:59,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:59,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:59,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910004677] [2024-10-11 20:03:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910004677] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:03:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970888364] [2024-10-11 20:03:59,561 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:03:59,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:03:59,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:03:59,562 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:03:59,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-11 20:03:59,599 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:03:59,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:03:59,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:03:59,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:03:59,706 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:59,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:03:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:59,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970888364] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:03:59,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:03:59,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-10-11 20:03:59,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625596429] [2024-10-11 20:03:59,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:03:59,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-11 20:03:59,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:59,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-11 20:03:59,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2024-10-11 20:03:59,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:03:59,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 376 transitions, 9295 flow. Second operand has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 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) [2024-10-11 20:03:59,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:59,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:03:59,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:00,721 INFO L124 PetriNetUnfolderBase]: 982/1929 cut-off events. [2024-10-11 20:04:00,721 INFO L125 PetriNetUnfolderBase]: For 47021/47021 co-relation queries the response was YES. [2024-10-11 20:04:00,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16695 conditions, 1929 events. 982/1929 cut-off events. For 47021/47021 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 11517 event pairs, 267 based on Foata normal form. 2/1931 useless extension candidates. Maximal degree in co-relation 16608. Up to 798 conditions per place. [2024-10-11 20:04:00,736 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 264 selfloop transitions, 140 changer transitions 25/430 dead transitions. [2024-10-11 20:04:00,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 430 transitions, 10660 flow [2024-10-11 20:04:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 20:04:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-11 20:04:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 191 transitions. [2024-10-11 20:04:00,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3315972222222222 [2024-10-11 20:04:00,737 INFO L175 Difference]: Start difference. First operand has 306 places, 376 transitions, 9295 flow. Second operand 24 states and 191 transitions. [2024-10-11 20:04:00,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 430 transitions, 10660 flow [2024-10-11 20:04:00,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 430 transitions, 10390 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-10-11 20:04:00,876 INFO L231 Difference]: Finished difference. Result has 315 places, 378 transitions, 9285 flow [2024-10-11 20:04:00,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9035, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=9285, PETRI_PLACES=315, PETRI_TRANSITIONS=378} [2024-10-11 20:04:00,877 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 289 predicate places. [2024-10-11 20:04:00,877 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 378 transitions, 9285 flow [2024-10-11 20:04:00,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 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) [2024-10-11 20:04:00,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:00,877 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:00,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-10-11 20:04:01,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,36 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:01,078 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:01,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash 66662073, now seen corresponding path program 35 times [2024-10-11 20:04:01,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:01,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758056239] [2024-10-11 20:04:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:01,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:01,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:01,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758056239] [2024-10-11 20:04:01,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758056239] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:01,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176207634] [2024-10-11 20:04:01,185 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:04:01,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:01,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:01,186 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:01,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-10-11 20:04:01,222 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-10-11 20:04:01,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:01,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:04:01,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 20:04:01,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:04:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176207634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:04:01,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:04:01,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2024-10-11 20:04:01,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799490181] [2024-10-11 20:04:01,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:04:01,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:04:01,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:01,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:04:01,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-10-11 20:04:01,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:01,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 378 transitions, 9285 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-10-11 20:04:01,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:01,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:01,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:01,636 INFO L124 PetriNetUnfolderBase]: 933/1798 cut-off events. [2024-10-11 20:04:01,636 INFO L125 PetriNetUnfolderBase]: For 44085/44085 co-relation queries the response was YES. [2024-10-11 20:04:01,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16103 conditions, 1798 events. 933/1798 cut-off events. For 44085/44085 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 10346 event pairs, 135 based on Foata normal form. 4/1802 useless extension candidates. Maximal degree in co-relation 16013. Up to 671 conditions per place. [2024-10-11 20:04:01,652 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 283 selfloop transitions, 95 changer transitions 21/400 dead transitions. [2024-10-11 20:04:01,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 400 transitions, 10296 flow [2024-10-11 20:04:01,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:04:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:04:01,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 85 transitions. [2024-10-11 20:04:01,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39351851851851855 [2024-10-11 20:04:01,653 INFO L175 Difference]: Start difference. First operand has 315 places, 378 transitions, 9285 flow. Second operand 9 states and 85 transitions. [2024-10-11 20:04:01,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 400 transitions, 10296 flow [2024-10-11 20:04:01,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 400 transitions, 9819 flow, removed 24 selfloop flow, removed 17 redundant places. [2024-10-11 20:04:01,795 INFO L231 Difference]: Finished difference. Result has 298 places, 366 transitions, 8665 flow [2024-10-11 20:04:01,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=8808, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8665, PETRI_PLACES=298, PETRI_TRANSITIONS=366} [2024-10-11 20:04:01,796 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 272 predicate places. [2024-10-11 20:04:01,796 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 366 transitions, 8665 flow [2024-10-11 20:04:01,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-10-11 20:04:01,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:01,796 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:01,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:01,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,37 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:01,997 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:01,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:01,997 INFO L85 PathProgramCache]: Analyzing trace with hash -24700277, now seen corresponding path program 36 times [2024-10-11 20:04:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:01,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866993438] [2024-10-11 20:04:01,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:01,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:02,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:02,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866993438] [2024-10-11 20:04:02,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866993438] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:02,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937093677] [2024-10-11 20:04:02,132 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:04:02,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:02,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:02,134 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:02,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-10-11 20:04:02,181 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-10-11 20:04:02,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:02,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:04:02,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:02,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:02,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937093677] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:02,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:02,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 28 [2024-10-11 20:04:02,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84258370] [2024-10-11 20:04:02,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:02,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 20:04:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:02,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 20:04:02,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2024-10-11 20:04:02,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:02,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 366 transitions, 8665 flow. Second operand has 29 states, 29 states have (on average 5.620689655172414) internal successors, (163), 29 states have internal predecessors, (163), 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) [2024-10-11 20:04:02,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:02,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:02,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:03,894 INFO L124 PetriNetUnfolderBase]: 1232/2286 cut-off events. [2024-10-11 20:04:03,894 INFO L125 PetriNetUnfolderBase]: For 57445/57445 co-relation queries the response was YES. [2024-10-11 20:04:03,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21287 conditions, 2286 events. 1232/2286 cut-off events. For 57445/57445 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 13604 event pairs, 40 based on Foata normal form. 32/2318 useless extension candidates. Maximal degree in co-relation 21201. Up to 539 conditions per place. [2024-10-11 20:04:03,910 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 72 selfloop transitions, 67 changer transitions 468/608 dead transitions. [2024-10-11 20:04:03,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 608 transitions, 14437 flow [2024-10-11 20:04:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-11 20:04:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-10-11 20:04:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 358 transitions. [2024-10-11 20:04:03,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3390151515151515 [2024-10-11 20:04:03,912 INFO L175 Difference]: Start difference. First operand has 298 places, 366 transitions, 8665 flow. Second operand 44 states and 358 transitions. [2024-10-11 20:04:03,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 608 transitions, 14437 flow [2024-10-11 20:04:04,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 608 transitions, 13925 flow, removed 24 selfloop flow, removed 12 redundant places. [2024-10-11 20:04:04,093 INFO L231 Difference]: Finished difference. Result has 335 places, 108 transitions, 2514 flow [2024-10-11 20:04:04,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=8325, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=2514, PETRI_PLACES=335, PETRI_TRANSITIONS=108} [2024-10-11 20:04:04,094 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 309 predicate places. [2024-10-11 20:04:04,094 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 108 transitions, 2514 flow [2024-10-11 20:04:04,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.620689655172414) internal successors, (163), 29 states have internal predecessors, (163), 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) [2024-10-11 20:04:04,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:04,094 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:04,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:04,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-10-11 20:04:04,295 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:04,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:04,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2086709481, now seen corresponding path program 37 times [2024-10-11 20:04:04,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:04,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880691826] [2024-10-11 20:04:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:04,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880691826] [2024-10-11 20:04:04,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880691826] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725720783] [2024-10-11 20:04:04,416 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:04:04,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:04,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:04,417 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:04,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-10-11 20:04:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:04,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 20:04:04,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:04,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:04,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725720783] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:04,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:04,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-10-11 20:04:04,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886776740] [2024-10-11 20:04:04,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:04,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 20:04:04,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:04,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 20:04:04,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:04:04,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:04,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 108 transitions, 2514 flow. Second operand has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 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) [2024-10-11 20:04:04,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:04,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:04,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:05,352 INFO L124 PetriNetUnfolderBase]: 269/604 cut-off events. [2024-10-11 20:04:05,352 INFO L125 PetriNetUnfolderBase]: For 13054/13054 co-relation queries the response was YES. [2024-10-11 20:04:05,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4759 conditions, 604 events. 269/604 cut-off events. For 13054/13054 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2897 event pairs, 27 based on Foata normal form. 1/605 useless extension candidates. Maximal degree in co-relation 4662. Up to 175 conditions per place. [2024-10-11 20:04:05,357 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 69 selfloop transitions, 53 changer transitions 21/144 dead transitions. [2024-10-11 20:04:05,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 144 transitions, 3155 flow [2024-10-11 20:04:05,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 20:04:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-11 20:04:05,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 147 transitions. [2024-10-11 20:04:05,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3402777777777778 [2024-10-11 20:04:05,358 INFO L175 Difference]: Start difference. First operand has 335 places, 108 transitions, 2514 flow. Second operand 18 states and 147 transitions. [2024-10-11 20:04:05,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 144 transitions, 3155 flow [2024-10-11 20:04:05,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 144 transitions, 2311 flow, removed 130 selfloop flow, removed 76 redundant places. [2024-10-11 20:04:05,385 INFO L231 Difference]: Finished difference. Result has 200 places, 103 transitions, 1799 flow [2024-10-11 20:04:05,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1776, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1799, PETRI_PLACES=200, PETRI_TRANSITIONS=103} [2024-10-11 20:04:05,386 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 174 predicate places. [2024-10-11 20:04:05,386 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 103 transitions, 1799 flow [2024-10-11 20:04:05,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 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) [2024-10-11 20:04:05,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:05,386 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:05,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:05,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,39 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:05,587 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:05,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:05,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1166677347, now seen corresponding path program 38 times [2024-10-11 20:04:05,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:05,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511505090] [2024-10-11 20:04:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:05,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:05,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:05,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511505090] [2024-10-11 20:04:05,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511505090] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:05,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11965893] [2024-10-11 20:04:05,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:04:05,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:05,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:05,703 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:05,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-10-11 20:04:05,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:04:05,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:05,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 20:04:05,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:05,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:06,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11965893] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:06,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:06,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 27 [2024-10-11 20:04:06,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750516461] [2024-10-11 20:04:06,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:06,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 20:04:06,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:06,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 20:04:06,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:04:06,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:06,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 103 transitions, 1799 flow. Second operand has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 28 states have internal predecessors, (153), 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) [2024-10-11 20:04:06,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:06,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:06,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:06,933 INFO L124 PetriNetUnfolderBase]: 334/741 cut-off events. [2024-10-11 20:04:06,933 INFO L125 PetriNetUnfolderBase]: For 9144/9144 co-relation queries the response was YES. [2024-10-11 20:04:06,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4720 conditions, 741 events. 334/741 cut-off events. For 9144/9144 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3847 event pairs, 45 based on Foata normal form. 9/750 useless extension candidates. Maximal degree in co-relation 4659. Up to 217 conditions per place. [2024-10-11 20:04:06,937 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 76 selfloop transitions, 78 changer transitions 38/193 dead transitions. [2024-10-11 20:04:06,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 193 transitions, 3165 flow [2024-10-11 20:04:06,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-11 20:04:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-11 20:04:06,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 249 transitions. [2024-10-11 20:04:06,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32421875 [2024-10-11 20:04:06,938 INFO L175 Difference]: Start difference. First operand has 200 places, 103 transitions, 1799 flow. Second operand 32 states and 249 transitions. [2024-10-11 20:04:06,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 193 transitions, 3165 flow [2024-10-11 20:04:06,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 193 transitions, 2791 flow, removed 48 selfloop flow, removed 19 redundant places. [2024-10-11 20:04:06,956 INFO L231 Difference]: Finished difference. Result has 203 places, 119 transitions, 2031 flow [2024-10-11 20:04:06,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=2031, PETRI_PLACES=203, PETRI_TRANSITIONS=119} [2024-10-11 20:04:06,957 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 177 predicate places. [2024-10-11 20:04:06,957 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 119 transitions, 2031 flow [2024-10-11 20:04:06,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 28 states have internal predecessors, (153), 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) [2024-10-11 20:04:06,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:06,957 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:06,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:07,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,40 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:07,162 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:07,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:07,162 INFO L85 PathProgramCache]: Analyzing trace with hash 246731237, now seen corresponding path program 39 times [2024-10-11 20:04:07,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:07,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476287224] [2024-10-11 20:04:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:07,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:07,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:07,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476287224] [2024-10-11 20:04:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476287224] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:07,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943111194] [2024-10-11 20:04:07,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:04:07,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:07,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:07,297 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:07,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-10-11 20:04:07,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 20:04:07,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:07,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:04:07,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 20:04:07,419 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:04:07,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943111194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:04:07,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:04:07,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2024-10-11 20:04:07,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724332234] [2024-10-11 20:04:07,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:04:07,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:04:07,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:04:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-11 20:04:07,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:07,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 119 transitions, 2031 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-10-11 20:04:07,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:07,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:07,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:07,537 INFO L124 PetriNetUnfolderBase]: 272/605 cut-off events. [2024-10-11 20:04:07,537 INFO L125 PetriNetUnfolderBase]: For 6442/6442 co-relation queries the response was YES. [2024-10-11 20:04:07,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3826 conditions, 605 events. 272/605 cut-off events. For 6442/6442 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2872 event pairs, 72 based on Foata normal form. 1/606 useless extension candidates. Maximal degree in co-relation 3765. Up to 257 conditions per place. [2024-10-11 20:04:07,541 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 77 selfloop transitions, 21 changer transitions 36/135 dead transitions. [2024-10-11 20:04:07,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 135 transitions, 2390 flow [2024-10-11 20:04:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:04:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:04:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 81 transitions. [2024-10-11 20:04:07,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-10-11 20:04:07,541 INFO L175 Difference]: Start difference. First operand has 203 places, 119 transitions, 2031 flow. Second operand 9 states and 81 transitions. [2024-10-11 20:04:07,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 135 transitions, 2390 flow [2024-10-11 20:04:07,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 135 transitions, 2127 flow, removed 37 selfloop flow, removed 17 redundant places. [2024-10-11 20:04:07,558 INFO L231 Difference]: Finished difference. Result has 186 places, 93 transitions, 1346 flow [2024-10-11 20:04:07,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1774, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1346, PETRI_PLACES=186, PETRI_TRANSITIONS=93} [2024-10-11 20:04:07,559 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 160 predicate places. [2024-10-11 20:04:07,559 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 93 transitions, 1346 flow [2024-10-11 20:04:07,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-10-11 20:04:07,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:07,559 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:07,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:07,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-10-11 20:04:07,760 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:07,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:07,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1089636971, now seen corresponding path program 40 times [2024-10-11 20:04:07,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:07,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979586511] [2024-10-11 20:04:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:07,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:07,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979586511] [2024-10-11 20:04:07,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979586511] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:07,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059398685] [2024-10-11 20:04:07,802 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:04:07,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:07,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:07,803 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:07,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-10-11 20:04:07,842 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:04:07,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:07,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:04:07,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:07,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:07,907 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:07,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059398685] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:07,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:07,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-10-11 20:04:07,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421700078] [2024-10-11 20:04:07,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:07,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 20:04:07,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:07,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 20:04:07,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:04:07,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:04:07,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 93 transitions, 1346 flow. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 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) [2024-10-11 20:04:07,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:07,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:04:07,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:08,039 INFO L124 PetriNetUnfolderBase]: 170/426 cut-off events. [2024-10-11 20:04:08,039 INFO L125 PetriNetUnfolderBase]: For 3919/3919 co-relation queries the response was YES. [2024-10-11 20:04:08,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2370 conditions, 426 events. 170/426 cut-off events. For 3919/3919 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1983 event pairs, 38 based on Foata normal form. 2/420 useless extension candidates. Maximal degree in co-relation 2311. Up to 270 conditions per place. [2024-10-11 20:04:08,041 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 56 selfloop transitions, 30 changer transitions 0/105 dead transitions. [2024-10-11 20:04:08,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 105 transitions, 1529 flow [2024-10-11 20:04:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:04:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 20:04:08,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-11 20:04:08,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-11 20:04:08,042 INFO L175 Difference]: Start difference. First operand has 186 places, 93 transitions, 1346 flow. Second operand 9 states and 95 transitions. [2024-10-11 20:04:08,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 105 transitions, 1529 flow [2024-10-11 20:04:08,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 105 transitions, 1405 flow, removed 10 selfloop flow, removed 14 redundant places. [2024-10-11 20:04:08,052 INFO L231 Difference]: Finished difference. Result has 161 places, 91 transitions, 1246 flow [2024-10-11 20:04:08,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1186, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1246, PETRI_PLACES=161, PETRI_TRANSITIONS=91} [2024-10-11 20:04:08,052 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 135 predicate places. [2024-10-11 20:04:08,052 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 91 transitions, 1246 flow [2024-10-11 20:04:08,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 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) [2024-10-11 20:04:08,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:08,052 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:08,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:08,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-10-11 20:04:08,253 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:08,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:08,253 INFO L85 PathProgramCache]: Analyzing trace with hash -4632495, now seen corresponding path program 41 times [2024-10-11 20:04:08,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:08,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456507035] [2024-10-11 20:04:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:08,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:08,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:08,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:08,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456507035] [2024-10-11 20:04:08,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456507035] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:08,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654047952] [2024-10-11 20:04:08,306 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:04:08,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:08,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:08,308 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:08,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-10-11 20:04:08,348 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-10-11 20:04:08,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:08,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:04:08,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:08,362 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:08,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654047952] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:08,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:08,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-10-11 20:04:08,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779095844] [2024-10-11 20:04:08,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:08,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:04:08,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:08,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:04:08,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:04:08,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:04:08,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 91 transitions, 1246 flow. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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) [2024-10-11 20:04:08,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:08,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:04:08,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:08,608 INFO L124 PetriNetUnfolderBase]: 162/419 cut-off events. [2024-10-11 20:04:08,608 INFO L125 PetriNetUnfolderBase]: For 3248/3248 co-relation queries the response was YES. [2024-10-11 20:04:08,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2199 conditions, 419 events. 162/419 cut-off events. For 3248/3248 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1952 event pairs, 90 based on Foata normal form. 9/423 useless extension candidates. Maximal degree in co-relation 2146. Up to 259 conditions per place. [2024-10-11 20:04:08,612 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 60 selfloop transitions, 27 changer transitions 2/106 dead transitions. [2024-10-11 20:04:08,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 106 transitions, 1429 flow [2024-10-11 20:04:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 20:04:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 20:04:08,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 116 transitions. [2024-10-11 20:04:08,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4393939393939394 [2024-10-11 20:04:08,613 INFO L175 Difference]: Start difference. First operand has 161 places, 91 transitions, 1246 flow. Second operand 11 states and 116 transitions. [2024-10-11 20:04:08,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 106 transitions, 1429 flow [2024-10-11 20:04:08,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 106 transitions, 1362 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-10-11 20:04:08,624 INFO L231 Difference]: Finished difference. Result has 163 places, 88 transitions, 1188 flow [2024-10-11 20:04:08,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1188, PETRI_PLACES=163, PETRI_TRANSITIONS=88} [2024-10-11 20:04:08,625 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 137 predicate places. [2024-10-11 20:04:08,625 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 88 transitions, 1188 flow [2024-10-11 20:04:08,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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) [2024-10-11 20:04:08,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:08,625 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:08,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:08,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,43 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:08,826 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:08,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:08,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1954511719, now seen corresponding path program 42 times [2024-10-11 20:04:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:08,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214778876] [2024-10-11 20:04:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:08,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:08,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:08,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214778876] [2024-10-11 20:04:08,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214778876] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:08,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029397302] [2024-10-11 20:04:08,882 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:04:08,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:08,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:08,884 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:08,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-10-11 20:04:08,937 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-10-11 20:04:08,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:08,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:04:08,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:08,955 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:09,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029397302] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:09,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:09,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-10-11 20:04:09,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607161286] [2024-10-11 20:04:09,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:09,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 20:04:09,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:09,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 20:04:09,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:04:09,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:04:09,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 88 transitions, 1188 flow. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 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) [2024-10-11 20:04:09,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:09,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:04:09,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:09,279 INFO L124 PetriNetUnfolderBase]: 164/427 cut-off events. [2024-10-11 20:04:09,279 INFO L125 PetriNetUnfolderBase]: For 3327/3327 co-relation queries the response was YES. [2024-10-11 20:04:09,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 427 events. 164/427 cut-off events. For 3327/3327 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2003 event pairs, 70 based on Foata normal form. 5/425 useless extension candidates. Maximal degree in co-relation 2200. Up to 204 conditions per place. [2024-10-11 20:04:09,282 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 68 selfloop transitions, 36 changer transitions 2/123 dead transitions. [2024-10-11 20:04:09,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 123 transitions, 1549 flow [2024-10-11 20:04:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 20:04:09,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-11 20:04:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 174 transitions. [2024-10-11 20:04:09,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4264705882352941 [2024-10-11 20:04:09,283 INFO L175 Difference]: Start difference. First operand has 163 places, 88 transitions, 1188 flow. Second operand 17 states and 174 transitions. [2024-10-11 20:04:09,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 123 transitions, 1549 flow [2024-10-11 20:04:09,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 123 transitions, 1488 flow, removed 6 selfloop flow, removed 9 redundant places. [2024-10-11 20:04:09,291 INFO L231 Difference]: Finished difference. Result has 173 places, 91 transitions, 1256 flow [2024-10-11 20:04:09,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1256, PETRI_PLACES=173, PETRI_TRANSITIONS=91} [2024-10-11 20:04:09,291 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 147 predicate places. [2024-10-11 20:04:09,291 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 91 transitions, 1256 flow [2024-10-11 20:04:09,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 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) [2024-10-11 20:04:09,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:09,292 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:09,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:09,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,44 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:09,492 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:09,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1956779042, now seen corresponding path program 43 times [2024-10-11 20:04:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:09,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238092877] [2024-10-11 20:04:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:09,624 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:09,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:09,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238092877] [2024-10-11 20:04:09,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238092877] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:09,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308587672] [2024-10-11 20:04:09,625 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:04:09,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:09,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:09,626 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:09,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-10-11 20:04:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:09,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 20:04:09,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:09,792 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:10,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308587672] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:10,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:10,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2024-10-11 20:04:10,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444896659] [2024-10-11 20:04:10,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:10,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 20:04:10,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:10,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 20:04:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=852, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 20:04:10,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:10,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 91 transitions, 1256 flow. Second operand has 33 states, 33 states have (on average 5.363636363636363) internal successors, (177), 33 states have internal predecessors, (177), 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) [2024-10-11 20:04:10,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:10,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:10,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:10,513 INFO L124 PetriNetUnfolderBase]: 223/515 cut-off events. [2024-10-11 20:04:10,513 INFO L125 PetriNetUnfolderBase]: For 3997/3997 co-relation queries the response was YES. [2024-10-11 20:04:10,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2719 conditions, 515 events. 223/515 cut-off events. For 3997/3997 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2364 event pairs, 7 based on Foata normal form. 3/518 useless extension candidates. Maximal degree in co-relation 2662. Up to 117 conditions per place. [2024-10-11 20:04:10,516 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 60 selfloop transitions, 47 changer transitions 29/137 dead transitions. [2024-10-11 20:04:10,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 137 transitions, 1763 flow [2024-10-11 20:04:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 20:04:10,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-11 20:04:10,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 164 transitions. [2024-10-11 20:04:10,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3416666666666667 [2024-10-11 20:04:10,517 INFO L175 Difference]: Start difference. First operand has 173 places, 91 transitions, 1256 flow. Second operand 20 states and 164 transitions. [2024-10-11 20:04:10,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 137 transitions, 1763 flow [2024-10-11 20:04:10,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 137 transitions, 1653 flow, removed 13 selfloop flow, removed 14 redundant places. [2024-10-11 20:04:10,527 INFO L231 Difference]: Finished difference. Result has 180 places, 74 transitions, 1013 flow [2024-10-11 20:04:10,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1013, PETRI_PLACES=180, PETRI_TRANSITIONS=74} [2024-10-11 20:04:10,527 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 154 predicate places. [2024-10-11 20:04:10,527 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 74 transitions, 1013 flow [2024-10-11 20:04:10,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.363636363636363) internal successors, (177), 33 states have internal predecessors, (177), 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) [2024-10-11 20:04:10,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:10,528 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:10,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-10-11 20:04:10,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,45 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:10,728 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:10,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:10,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2084879786, now seen corresponding path program 44 times [2024-10-11 20:04:10,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:10,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410155698] [2024-10-11 20:04:10,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:10,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:10,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:10,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:10,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410155698] [2024-10-11 20:04:10,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410155698] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:10,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878401499] [2024-10-11 20:04:10,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:04:10,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:10,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:10,880 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:10,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-10-11 20:04:10,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:04:10,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:10,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 20:04:10,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:11,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:11,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:11,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878401499] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:11,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:11,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2024-10-11 20:04:11,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352463574] [2024-10-11 20:04:11,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:11,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 20:04:11,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:11,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 20:04:11,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=855, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 20:04:11,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:11,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 74 transitions, 1013 flow. Second operand has 33 states, 33 states have (on average 5.333333333333333) internal successors, (176), 33 states have internal predecessors, (176), 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) [2024-10-11 20:04:11,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:11,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:11,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:11,821 INFO L124 PetriNetUnfolderBase]: 141/328 cut-off events. [2024-10-11 20:04:11,821 INFO L125 PetriNetUnfolderBase]: For 2866/2866 co-relation queries the response was YES. [2024-10-11 20:04:11,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1930 conditions, 328 events. 141/328 cut-off events. For 2866/2866 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1247 event pairs, 7 based on Foata normal form. 2/330 useless extension candidates. Maximal degree in co-relation 1872. Up to 76 conditions per place. [2024-10-11 20:04:11,823 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 27 changer transitions 41/112 dead transitions. [2024-10-11 20:04:11,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 112 transitions, 1384 flow [2024-10-11 20:04:11,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 20:04:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 20:04:11,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 162 transitions. [2024-10-11 20:04:11,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2024-10-11 20:04:11,824 INFO L175 Difference]: Start difference. First operand has 180 places, 74 transitions, 1013 flow. Second operand 21 states and 162 transitions. [2024-10-11 20:04:11,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 112 transitions, 1384 flow [2024-10-11 20:04:11,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 112 transitions, 1160 flow, removed 15 selfloop flow, removed 33 redundant places. [2024-10-11 20:04:11,830 INFO L231 Difference]: Finished difference. Result has 160 places, 51 transitions, 561 flow [2024-10-11 20:04:11,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=561, PETRI_PLACES=160, PETRI_TRANSITIONS=51} [2024-10-11 20:04:11,830 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 134 predicate places. [2024-10-11 20:04:11,831 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 51 transitions, 561 flow [2024-10-11 20:04:11,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.333333333333333) internal successors, (176), 33 states have internal predecessors, (176), 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) [2024-10-11 20:04:11,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:11,831 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:11,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:12,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2024-10-11 20:04:12,032 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:12,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:12,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1731649322, now seen corresponding path program 45 times [2024-10-11 20:04:12,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:12,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246747173] [2024-10-11 20:04:12,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:12,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:12,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246747173] [2024-10-11 20:04:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246747173] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340427112] [2024-10-11 20:04:12,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:04:12,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:12,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:12,179 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:12,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-10-11 20:04:12,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-11 20:04:12,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:12,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:04:12,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 20:04:12,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 20:04:12,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340427112] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:12,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:12,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2024-10-11 20:04:12,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866829445] [2024-10-11 20:04:12,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:12,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 20:04:12,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:12,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 20:04:12,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:04:12,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:12,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 51 transitions, 561 flow. Second operand has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-10-11 20:04:12,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:12,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:12,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:12,659 INFO L124 PetriNetUnfolderBase]: 82/192 cut-off events. [2024-10-11 20:04:12,659 INFO L125 PetriNetUnfolderBase]: For 1346/1346 co-relation queries the response was YES. [2024-10-11 20:04:12,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 192 events. 82/192 cut-off events. For 1346/1346 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 543 event pairs, 15 based on Foata normal form. 1/193 useless extension candidates. Maximal degree in co-relation 983. Up to 46 conditions per place. [2024-10-11 20:04:12,660 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 33 selfloop transitions, 11 changer transitions 29/74 dead transitions. [2024-10-11 20:04:12,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 74 transitions, 797 flow [2024-10-11 20:04:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 20:04:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 20:04:12,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 114 transitions. [2024-10-11 20:04:12,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31666666666666665 [2024-10-11 20:04:12,661 INFO L175 Difference]: Start difference. First operand has 160 places, 51 transitions, 561 flow. Second operand 15 states and 114 transitions. [2024-10-11 20:04:12,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 74 transitions, 797 flow [2024-10-11 20:04:12,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 74 transitions, 653 flow, removed 15 selfloop flow, removed 33 redundant places. [2024-10-11 20:04:12,664 INFO L231 Difference]: Finished difference. Result has 120 places, 39 transitions, 348 flow [2024-10-11 20:04:12,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=348, PETRI_PLACES=120, PETRI_TRANSITIONS=39} [2024-10-11 20:04:12,665 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 94 predicate places. [2024-10-11 20:04:12,665 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 39 transitions, 348 flow [2024-10-11 20:04:12,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-10-11 20:04:12,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:12,665 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:12,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:12,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,47 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:12,866 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:12,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash 333453026, now seen corresponding path program 46 times [2024-10-11 20:04:12,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:12,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618875858] [2024-10-11 20:04:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:12,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:13,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:13,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618875858] [2024-10-11 20:04:13,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618875858] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:13,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212024078] [2024-10-11 20:04:13,023 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:04:13,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:13,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:13,025 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:13,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-10-11 20:04:13,070 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:04:13,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:13,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 20:04:13,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:13,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:13,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212024078] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:13,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:13,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 31 [2024-10-11 20:04:13,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757097298] [2024-10-11 20:04:13,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:13,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 20:04:13,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:13,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 20:04:13,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2024-10-11 20:04:13,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:13,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 39 transitions, 348 flow. Second operand has 32 states, 32 states have (on average 5.3125) internal successors, (170), 32 states have internal predecessors, (170), 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) [2024-10-11 20:04:13,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:13,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:13,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:13,820 INFO L124 PetriNetUnfolderBase]: 68/163 cut-off events. [2024-10-11 20:04:13,820 INFO L125 PetriNetUnfolderBase]: For 826/826 co-relation queries the response was YES. [2024-10-11 20:04:13,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 163 events. 68/163 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 410 event pairs, 20 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 747. Up to 63 conditions per place. [2024-10-11 20:04:13,821 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 27 selfloop transitions, 6 changer transitions 31/65 dead transitions. [2024-10-11 20:04:13,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 65 transitions, 598 flow [2024-10-11 20:04:13,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 20:04:13,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-11 20:04:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 117 transitions. [2024-10-11 20:04:13,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3046875 [2024-10-11 20:04:13,821 INFO L175 Difference]: Start difference. First operand has 120 places, 39 transitions, 348 flow. Second operand 16 states and 117 transitions. [2024-10-11 20:04:13,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 65 transitions, 598 flow [2024-10-11 20:04:13,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 65 transitions, 528 flow, removed 4 selfloop flow, removed 16 redundant places. [2024-10-11 20:04:13,824 INFO L231 Difference]: Finished difference. Result has 106 places, 31 transitions, 242 flow [2024-10-11 20:04:13,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=242, PETRI_PLACES=106, PETRI_TRANSITIONS=31} [2024-10-11 20:04:13,824 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 80 predicate places. [2024-10-11 20:04:13,824 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 31 transitions, 242 flow [2024-10-11 20:04:13,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.3125) internal successors, (170), 32 states have internal predecessors, (170), 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) [2024-10-11 20:04:13,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:13,824 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:13,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-10-11 20:04:14,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,48 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:14,025 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:14,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1303977013, now seen corresponding path program 47 times [2024-10-11 20:04:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603811724] [2024-10-11 20:04:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:14,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:14,080 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:14,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:14,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603811724] [2024-10-11 20:04:14,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603811724] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:14,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593198379] [2024-10-11 20:04:14,081 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:04:14,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:14,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:14,082 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:14,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-10-11 20:04:14,120 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-10-11 20:04:14,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:14,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 20:04:14,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:14,134 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:14,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593198379] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:14,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:14,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2024-10-11 20:04:14,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257825916] [2024-10-11 20:04:14,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:14,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 20:04:14,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:14,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 20:04:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-11 20:04:14,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-11 20:04:14,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 31 transitions, 242 flow. Second operand has 19 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 19 states have internal predecessors, (147), 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) [2024-10-11 20:04:14,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:14,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-11 20:04:14,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:14,371 INFO L124 PetriNetUnfolderBase]: 50/124 cut-off events. [2024-10-11 20:04:14,371 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-10-11 20:04:14,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 124 events. 50/124 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 285 event pairs, 10 based on Foata normal form. 2/124 useless extension candidates. Maximal degree in co-relation 591. Up to 41 conditions per place. [2024-10-11 20:04:14,372 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 34 selfloop transitions, 9 changer transitions 13/59 dead transitions. [2024-10-11 20:04:14,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 59 transitions, 526 flow [2024-10-11 20:04:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:04:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 20:04:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 118 transitions. [2024-10-11 20:04:14,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4097222222222222 [2024-10-11 20:04:14,372 INFO L175 Difference]: Start difference. First operand has 106 places, 31 transitions, 242 flow. Second operand 12 states and 118 transitions. [2024-10-11 20:04:14,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 59 transitions, 526 flow [2024-10-11 20:04:14,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 59 transitions, 450 flow, removed 17 selfloop flow, removed 15 redundant places. [2024-10-11 20:04:14,374 INFO L231 Difference]: Finished difference. Result has 90 places, 33 transitions, 263 flow [2024-10-11 20:04:14,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=263, PETRI_PLACES=90, PETRI_TRANSITIONS=33} [2024-10-11 20:04:14,375 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 64 predicate places. [2024-10-11 20:04:14,375 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 33 transitions, 263 flow [2024-10-11 20:04:14,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 19 states have internal predecessors, (147), 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) [2024-10-11 20:04:14,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:04:14,375 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:04:14,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-10-11 20:04:14,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-10-11 20:04:14,575 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 20:04:14,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:04:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash -277634523, now seen corresponding path program 48 times [2024-10-11 20:04:14,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:04:14,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625260953] [2024-10-11 20:04:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:04:14,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:04:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:04:14,728 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:14,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:04:14,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625260953] [2024-10-11 20:04:14,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625260953] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:04:14,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911701543] [2024-10-11 20:04:14,728 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:04:14,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:14,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:04:14,730 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:04:14,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-10-11 20:04:14,771 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-10-11 20:04:14,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:04:14,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 20:04:14,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:04:14,974 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:14,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:04:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:04:15,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911701543] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:04:15,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:04:15,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 41 [2024-10-11 20:04:15,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889596491] [2024-10-11 20:04:15,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:04:15,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-11 20:04:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:04:15,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-11 20:04:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1476, Unknown=0, NotChecked=0, Total=1722 [2024-10-11 20:04:15,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-11 20:04:15,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 33 transitions, 263 flow. Second operand has 42 states, 42 states have (on average 5.261904761904762) internal successors, (221), 42 states have internal predecessors, (221), 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) [2024-10-11 20:04:15,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:04:15,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-11 20:04:15,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:04:16,108 INFO L124 PetriNetUnfolderBase]: 65/152 cut-off events. [2024-10-11 20:04:16,109 INFO L125 PetriNetUnfolderBase]: For 505/505 co-relation queries the response was YES. [2024-10-11 20:04:16,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 152 events. 65/152 cut-off events. For 505/505 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 375 event pairs, 0 based on Foata normal form. 3/155 useless extension candidates. Maximal degree in co-relation 728. Up to 39 conditions per place. [2024-10-11 20:04:16,109 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2024-10-11 20:04:16,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 85 transitions, 681 flow [2024-10-11 20:04:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 20:04:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 20:04:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 203 transitions. [2024-10-11 20:04:16,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28194444444444444 [2024-10-11 20:04:16,110 INFO L175 Difference]: Start difference. First operand has 90 places, 33 transitions, 263 flow. Second operand 30 states and 203 transitions. [2024-10-11 20:04:16,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 85 transitions, 681 flow [2024-10-11 20:04:16,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 85 transitions, 622 flow, removed 22 selfloop flow, removed 9 redundant places. [2024-10-11 20:04:16,113 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2024-10-11 20:04:16,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2024-10-11 20:04:16,114 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 77 predicate places. [2024-10-11 20:04:16,114 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2024-10-11 20:04:16,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.261904761904762) internal successors, (221), 42 states have internal predecessors, (221), 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) [2024-10-11 20:04:16,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-11 20:04:16,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-11 20:04:16,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-11 20:04:16,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-11 20:04:16,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-10-11 20:04:16,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,50 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:04:16,318 INFO L407 BasicCegarLoop]: Path program histogram: [48, 20, 5, 5] [2024-10-11 20:04:16,322 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 20:04:16,322 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 20:04:16,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 08:04:16 BasicIcfg [2024-10-11 20:04:16,328 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 20:04:16,329 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 20:04:16,329 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 20:04:16,329 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 20:04:16,330 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:02:55" (3/4) ... [2024-10-11 20:04:16,333 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 20:04:16,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-11 20:04:16,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-11 20:04:16,340 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-10-11 20:04:16,342 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-11 20:04:16,342 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-11 20:04:16,343 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 20:04:16,423 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 20:04:16,424 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 20:04:16,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 20:04:16,427 INFO L158 Benchmark]: Toolchain (without parser) took 81272.94ms. Allocated memory was 163.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 127.5MB in the beginning and 952.1MB in the end (delta: -824.6MB). Peak memory consumption was 878.3MB. Max. memory is 16.1GB. [2024-10-11 20:04:16,427 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 20:04:16,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.32ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 114.9MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 20:04:16,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.86ms. Allocated memory is still 163.6MB. Free memory was 114.9MB in the beginning and 112.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 20:04:16,428 INFO L158 Benchmark]: Boogie Preprocessor took 47.96ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 110.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 20:04:16,428 INFO L158 Benchmark]: RCFGBuilder took 403.22ms. Allocated memory is still 163.6MB. Free memory was 110.9MB in the beginning and 90.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 20:04:16,428 INFO L158 Benchmark]: TraceAbstraction took 80428.20ms. Allocated memory was 163.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 90.0MB in the beginning and 957.3MB in the end (delta: -867.4MB). Peak memory consumption was 836.4MB. Max. memory is 16.1GB. [2024-10-11 20:04:16,428 INFO L158 Benchmark]: Witness Printer took 97.29ms. Allocated memory is still 1.9GB. Free memory was 957.3MB in the beginning and 952.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 20:04:16,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.32ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 114.9MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.86ms. Allocated memory is still 163.6MB. Free memory was 114.9MB in the beginning and 112.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.96ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 110.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.22ms. Allocated memory is still 163.6MB. Free memory was 110.9MB in the beginning and 90.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 80428.20ms. Allocated memory was 163.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 90.0MB in the beginning and 957.3MB in the end (delta: -867.4MB). Peak memory consumption was 836.4MB. Max. memory is 16.1GB. * Witness Printer took 97.29ms. Allocated memory is still 1.9GB. Free memory was 957.3MB in the beginning and 952.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 66]: 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, 35 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: 80.3s, OverallIterations: 78, TraceHistogramMax: 4, PathProgramHistogramMax: 48, EmptinessCheckTime: 0.0s, AutomataDifference: 47.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5092 SdHoareTripleChecker+Valid, 16.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5032 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 13.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 1124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34200 IncrementalHoareTripleChecker+Invalid, 35324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1124 mSolverCounterUnsat, 25 mSDtfsCounter, 34200 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3323 GetRequests, 1438 SyntacticMatches, 17 SemanticMatches, 1868 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16587 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13380occurred in iteration=46, InterpolantAutomatonStates: 1197, 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: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 19.8s InterpolantComputationTime, 2482 NumberOfCodeBlocks, 2480 NumberOfCodeBlocksAsserted, 182 NumberOfCheckSat, 3202 ConstructedInterpolants, 0 QuantifiedInterpolants, 18511 SizeOfPredicates, 160 NumberOfNonLiveVariables, 4973 ConjunctsInSsa, 678 ConjunctsInUnsatCore, 171 InterpolantComputations, 35 PerfectInterpolantSequences, 172/705 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! [2024-10-11 20:04:16,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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: TRUE