./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b81cf2d80bc77dedaac253250be737ceaa09f6e691f026864fe6fd5cb48c2489 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:21:20,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:21:20,837 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:21:20,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:21:20,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:21:20,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:21:20,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:21:20,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:21:20,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:21:20,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:21:20,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:21:20,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:21:20,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:21:20,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:21:20,890 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:21:20,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:21:20,891 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:21:20,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:21:20,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:21:20,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:21:20,894 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:21:20,895 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:21:20,895 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:21:20,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:21:20,897 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:21:20,897 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:21:20,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:21:20,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:21:20,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:21:20,900 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:21:20,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:21:20,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:21:20,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:21:20,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:21:20,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:21:20,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:21:20,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:21:20,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:21:20,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:21:20,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:21:20,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:21:20,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:21:20,906 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b81cf2d80bc77dedaac253250be737ceaa09f6e691f026864fe6fd5cb48c2489 [2024-11-10 18:21:21,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:21:21,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:21:21,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:21:21,235 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:21:21,235 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:21:21,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2024-11-10 18:21:22,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:21:23,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:21:23,034 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2024-11-10 18:21:23,043 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93f075c7/60079b8c985d4fc5908099a2ca110410/FLAG3f8a2775a [2024-11-10 18:21:23,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93f075c7/60079b8c985d4fc5908099a2ca110410 [2024-11-10 18:21:23,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:21:23,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:21:23,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:21:23,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:21:23,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:21:23,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698abd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23, skipping insertion in model container [2024-11-10 18:21:23,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:21:23,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:21:23,357 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:21:23,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:21:23,412 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:21:23,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23 WrapperNode [2024-11-10 18:21:23,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:21:23,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:21:23,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:21:23,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:21:23,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,459 INFO L138 Inliner]: procedures = 22, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 98 [2024-11-10 18:21:23,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:21:23,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:21:23,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:21:23,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:21:23,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,478 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,495 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]. [2024-11-10 18:21:23,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,504 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:21:23,523 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:21:23,523 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:21:23,523 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:21:23,524 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (1/1) ... [2024-11-10 18:21:23,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:21:23,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:21:23,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:21:23,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 18:21:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 18:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 18:21:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 18:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 18:21:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 18:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-10 18:21:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-10 18:21:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:21:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 18:21:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 18:21:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:21:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:21:23,618 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:21:23,710 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:21:23,712 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:21:23,931 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:21:23,931 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:21:24,102 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:21:24,102 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:21:24,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:21:24 BoogieIcfgContainer [2024-11-10 18:21:24,103 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:21:24,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:21:24,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:21:24,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:21:24,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:21:23" (1/3) ... [2024-11-10 18:21:24,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fb5f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:21:24, skipping insertion in model container [2024-11-10 18:21:24,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:23" (2/3) ... [2024-11-10 18:21:24,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fb5f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:21:24, skipping insertion in model container [2024-11-10 18:21:24,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:21:24" (3/3) ... [2024-11-10 18:21:24,113 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2024-11-10 18:21:24,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:21:24,127 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 18:21:24,127 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:21:24,200 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 18:21:24,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 136 flow [2024-11-10 18:21:24,279 INFO L124 PetriNetUnfolderBase]: 8/50 cut-off events. [2024-11-10 18:21:24,279 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:21:24,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 8/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-10 18:21:24,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 54 transitions, 136 flow [2024-11-10 18:21:24,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 49 transitions, 122 flow [2024-11-10 18:21:24,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:21:24,308 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;@2b13117c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:21:24,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 18:21:24,358 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:21:24,358 INFO L124 PetriNetUnfolderBase]: 8/46 cut-off events. [2024-11-10 18:21:24,364 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:21:24,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:24,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:24,366 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:24,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:24,382 INFO L85 PathProgramCache]: Analyzing trace with hash 747488853, now seen corresponding path program 1 times [2024-11-10 18:21:24,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:24,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383623078] [2024-11-10 18:21:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:24,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:24,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:24,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383623078] [2024-11-10 18:21:24,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383623078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:21:24,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:21:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:21:24,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841673591] [2024-11-10 18:21:24,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:24,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:21:24,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:24,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:21:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:21:24,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-11-10 18:21:24,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 122 flow. Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:24,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:24,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-11-10 18:21:24,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:21:25,180 INFO L124 PetriNetUnfolderBase]: 2477/3692 cut-off events. [2024-11-10 18:21:25,183 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-11-10 18:21:25,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7197 conditions, 3692 events. 2477/3692 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 20754 event pairs, 1794 based on Foata normal form. 684/4111 useless extension candidates. Maximal degree in co-relation 6471. Up to 3245 conditions per place. [2024-11-10 18:21:25,227 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 30 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2024-11-10 18:21:25,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 170 flow [2024-11-10 18:21:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:21:25,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 18:21:25,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 71 transitions. [2024-11-10 18:21:25,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-11-10 18:21:25,242 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 122 flow. Second operand 2 states and 71 transitions. [2024-11-10 18:21:25,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 170 flow [2024-11-10 18:21:25,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 154 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-10 18:21:25,254 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 94 flow [2024-11-10 18:21:25,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2024-11-10 18:21:25,262 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2024-11-10 18:21:25,263 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 94 flow [2024-11-10 18:21:25,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:25,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:25,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:25,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:21:25,265 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:25,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash -601444055, now seen corresponding path program 1 times [2024-11-10 18:21:25,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:25,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400439924] [2024-11-10 18:21:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:25,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:25,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:25,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400439924] [2024-11-10 18:21:25,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400439924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:21:25,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:21:25,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:21:25,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503941027] [2024-11-10 18:21:25,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:25,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:21:25,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:21:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:21:25,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-11-10 18:21:25,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:25,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:25,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-11-10 18:21:25,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:21:26,097 INFO L124 PetriNetUnfolderBase]: 3042/4658 cut-off events. [2024-11-10 18:21:26,097 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-10 18:21:26,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8815 conditions, 4658 events. 3042/4658 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 27128 event pairs, 763 based on Foata normal form. 140/4537 useless extension candidates. Maximal degree in co-relation 8812. Up to 3203 conditions per place. [2024-11-10 18:21:26,131 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 46 selfloop transitions, 3 changer transitions 2/64 dead transitions. [2024-11-10 18:21:26,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 64 transitions, 245 flow [2024-11-10 18:21:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:21:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:21:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-10 18:21:26,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-10 18:21:26,134 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 94 flow. Second operand 3 states and 108 transitions. [2024-11-10 18:21:26,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 64 transitions, 245 flow [2024-11-10 18:21:26,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 64 transitions, 245 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:21:26,137 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2024-11-10 18:21:26,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-10 18:21:26,139 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -6 predicate places. [2024-11-10 18:21:26,139 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2024-11-10 18:21:26,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:26,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:26,140 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:26,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:21:26,140 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:26,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:26,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2076041899, now seen corresponding path program 1 times [2024-11-10 18:21:26,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:26,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471195967] [2024-11-10 18:21:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:26,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:26,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471195967] [2024-11-10 18:21:26,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471195967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:21:26,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:21:26,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:21:26,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796346314] [2024-11-10 18:21:26,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:26,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:21:26,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:26,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:21:26,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:21:26,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 18:21:26,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:26,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:26,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 18:21:26,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:21:28,864 INFO L124 PetriNetUnfolderBase]: 19866/27469 cut-off events. [2024-11-10 18:21:28,865 INFO L125 PetriNetUnfolderBase]: For 2969/2969 co-relation queries the response was YES. [2024-11-10 18:21:28,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59074 conditions, 27469 events. 19866/27469 cut-off events. For 2969/2969 co-relation queries the response was YES. Maximal size of possible extension queue 1368. Compared 176008 event pairs, 5607 based on Foata normal form. 540/25459 useless extension candidates. Maximal degree in co-relation 59069. Up to 12902 conditions per place. [2024-11-10 18:21:29,087 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 125 selfloop transitions, 15 changer transitions 0/147 dead transitions. [2024-11-10 18:21:29,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 147 transitions, 664 flow [2024-11-10 18:21:29,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:21:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:21:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-11-10 18:21:29,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6512345679012346 [2024-11-10 18:21:29,094 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 6 states and 211 transitions. [2024-11-10 18:21:29,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 147 transitions, 664 flow [2024-11-10 18:21:29,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 147 transitions, 654 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:21:29,101 INFO L231 Difference]: Finished difference. Result has 56 places, 59 transitions, 229 flow [2024-11-10 18:21:29,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=56, PETRI_TRANSITIONS=59} [2024-11-10 18:21:29,102 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-11-10 18:21:29,103 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 59 transitions, 229 flow [2024-11-10 18:21:29,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:29,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:29,103 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:29,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:21:29,104 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:29,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1806715043, now seen corresponding path program 2 times [2024-11-10 18:21:29,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:29,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128117051] [2024-11-10 18:21:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:29,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:29,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:29,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128117051] [2024-11-10 18:21:29,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128117051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:21:29,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:21:29,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:21:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169297413] [2024-11-10 18:21:29,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:29,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:21:29,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:29,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:21:29,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:21:29,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 18:21:29,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 229 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:29,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:29,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 18:21:29,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:21:33,168 INFO L124 PetriNetUnfolderBase]: 35400/48399 cut-off events. [2024-11-10 18:21:33,169 INFO L125 PetriNetUnfolderBase]: For 43046/43323 co-relation queries the response was YES. [2024-11-10 18:21:33,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138698 conditions, 48399 events. 35400/48399 cut-off events. For 43046/43323 co-relation queries the response was YES. Maximal size of possible extension queue 2177. Compared 322224 event pairs, 13939 based on Foata normal form. 690/48305 useless extension candidates. Maximal degree in co-relation 138689. Up to 26139 conditions per place. [2024-11-10 18:21:33,628 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 126 selfloop transitions, 18 changer transitions 0/152 dead transitions. [2024-11-10 18:21:33,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 152 transitions, 915 flow [2024-11-10 18:21:33,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:21:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:21:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 165 transitions. [2024-11-10 18:21:33,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-10 18:21:33,631 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 229 flow. Second operand 5 states and 165 transitions. [2024-11-10 18:21:33,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 152 transitions, 915 flow [2024-11-10 18:21:33,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 152 transitions, 915 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:21:33,669 INFO L231 Difference]: Finished difference. Result has 63 places, 76 transitions, 399 flow [2024-11-10 18:21:33,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=63, PETRI_TRANSITIONS=76} [2024-11-10 18:21:33,670 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 9 predicate places. [2024-11-10 18:21:33,671 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 76 transitions, 399 flow [2024-11-10 18:21:33,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:33,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:33,673 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:33,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:21:33,674 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:33,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1130876743, now seen corresponding path program 3 times [2024-11-10 18:21:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107024293] [2024-11-10 18:21:33,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:33,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:33,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:33,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107024293] [2024-11-10 18:21:33,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107024293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:21:33,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:21:33,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:21:33,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374066166] [2024-11-10 18:21:33,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:33,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:21:33,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:33,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:21:33,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:21:33,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 18:21:33,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 76 transitions, 399 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:33,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:33,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 18:21:33,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:21:37,615 INFO L124 PetriNetUnfolderBase]: 37885/51972 cut-off events. [2024-11-10 18:21:37,615 INFO L125 PetriNetUnfolderBase]: For 89419/89678 co-relation queries the response was YES. [2024-11-10 18:21:37,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174606 conditions, 51972 events. 37885/51972 cut-off events. For 89419/89678 co-relation queries the response was YES. Maximal size of possible extension queue 2398. Compared 350175 event pairs, 12496 based on Foata normal form. 1454/52710 useless extension candidates. Maximal degree in co-relation 174593. Up to 23800 conditions per place. [2024-11-10 18:21:38,014 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 120 selfloop transitions, 28 changer transitions 0/156 dead transitions. [2024-11-10 18:21:38,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 156 transitions, 1054 flow [2024-11-10 18:21:38,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:21:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:21:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-10 18:21:38,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-10 18:21:38,017 INFO L175 Difference]: Start difference. First operand has 63 places, 76 transitions, 399 flow. Second operand 5 states and 170 transitions. [2024-11-10 18:21:38,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 156 transitions, 1054 flow [2024-11-10 18:21:38,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 156 transitions, 1054 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:21:38,057 INFO L231 Difference]: Finished difference. Result has 70 places, 85 transitions, 583 flow [2024-11-10 18:21:38,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=583, PETRI_PLACES=70, PETRI_TRANSITIONS=85} [2024-11-10 18:21:38,058 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2024-11-10 18:21:38,058 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 85 transitions, 583 flow [2024-11-10 18:21:38,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:38,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:38,058 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:38,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:21:38,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:38,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:38,059 INFO L85 PathProgramCache]: Analyzing trace with hash 786196295, now seen corresponding path program 4 times [2024-11-10 18:21:38,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:38,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14729911] [2024-11-10 18:21:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:38,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:38,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14729911] [2024-11-10 18:21:38,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14729911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:21:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536492267] [2024-11-10 18:21:38,198 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:21:38,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:21:38,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:21:38,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:21:38,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:21:38,299 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:21:38,299 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:21:38,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:21:38,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:21:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:38,417 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:21:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536492267] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 18:21:38,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 18:21:38,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2024-11-10 18:21:38,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025472560] [2024-11-10 18:21:38,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:38,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:21:38,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:38,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:21:38,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:21:38,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-11-10 18:21:38,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 85 transitions, 583 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:38,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:38,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-11-10 18:21:38,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:21:42,740 INFO L124 PetriNetUnfolderBase]: 41660/57952 cut-off events. [2024-11-10 18:21:42,741 INFO L125 PetriNetUnfolderBase]: For 159726/161009 co-relation queries the response was YES. [2024-11-10 18:21:42,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221044 conditions, 57952 events. 41660/57952 cut-off events. For 159726/161009 co-relation queries the response was YES. Maximal size of possible extension queue 2760. Compared 397157 event pairs, 5918 based on Foata normal form. 1876/58484 useless extension candidates. Maximal degree in co-relation 221027. Up to 26811 conditions per place. [2024-11-10 18:21:43,793 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 143 selfloop transitions, 19 changer transitions 2/174 dead transitions. [2024-11-10 18:21:43,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 174 transitions, 1563 flow [2024-11-10 18:21:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:21:43,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:21:43,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2024-11-10 18:21:43,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6203703703703703 [2024-11-10 18:21:43,795 INFO L175 Difference]: Start difference. First operand has 70 places, 85 transitions, 583 flow. Second operand 4 states and 134 transitions. [2024-11-10 18:21:43,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 174 transitions, 1563 flow [2024-11-10 18:21:43,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 174 transitions, 1495 flow, removed 17 selfloop flow, removed 1 redundant places. [2024-11-10 18:21:43,943 INFO L231 Difference]: Finished difference. Result has 75 places, 102 transitions, 835 flow [2024-11-10 18:21:43,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=835, PETRI_PLACES=75, PETRI_TRANSITIONS=102} [2024-11-10 18:21:43,945 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 21 predicate places. [2024-11-10 18:21:43,945 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 102 transitions, 835 flow [2024-11-10 18:21:43,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:43,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:43,946 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:43,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 18:21:44,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-10 18:21:44,151 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:44,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:44,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1754910323, now seen corresponding path program 5 times [2024-11-10 18:21:44,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:44,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766270176] [2024-11-10 18:21:44,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:44,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:44,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:44,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766270176] [2024-11-10 18:21:44,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766270176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:21:44,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:21:44,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:21:44,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540903936] [2024-11-10 18:21:44,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:44,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:21:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:44,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:21:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:21:44,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-11-10 18:21:44,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 102 transitions, 835 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:44,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:44,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-11-10 18:21:44,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:21:51,421 INFO L124 PetriNetUnfolderBase]: 59150/81739 cut-off events. [2024-11-10 18:21:51,422 INFO L125 PetriNetUnfolderBase]: For 280459/282348 co-relation queries the response was YES. [2024-11-10 18:21:51,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314072 conditions, 81739 events. 59150/81739 cut-off events. For 280459/282348 co-relation queries the response was YES. Maximal size of possible extension queue 3235. Compared 571744 event pairs, 17013 based on Foata normal form. 2341/81970 useless extension candidates. Maximal degree in co-relation 314053. Up to 30613 conditions per place. [2024-11-10 18:21:52,163 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 231 selfloop transitions, 21 changer transitions 11/273 dead transitions. [2024-11-10 18:21:52,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 273 transitions, 2415 flow [2024-11-10 18:21:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:21:52,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:21:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2024-11-10 18:21:52,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6164021164021164 [2024-11-10 18:21:52,165 INFO L175 Difference]: Start difference. First operand has 75 places, 102 transitions, 835 flow. Second operand 7 states and 233 transitions. [2024-11-10 18:21:52,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 273 transitions, 2415 flow [2024-11-10 18:21:52,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 273 transitions, 2415 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:21:52,277 INFO L231 Difference]: Finished difference. Result has 86 places, 114 transitions, 1153 flow [2024-11-10 18:21:52,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1153, PETRI_PLACES=86, PETRI_TRANSITIONS=114} [2024-11-10 18:21:52,278 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 32 predicate places. [2024-11-10 18:21:52,279 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 114 transitions, 1153 flow [2024-11-10 18:21:52,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:52,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:21:52,279 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:21:52,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:21:52,280 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:21:52,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:21:52,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1749087333, now seen corresponding path program 6 times [2024-11-10 18:21:52,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:21:52,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796924915] [2024-11-10 18:21:52,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:21:52,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:21:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:21:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:21:52,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:21:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796924915] [2024-11-10 18:21:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796924915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:21:52,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:21:52,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:21:52,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120802942] [2024-11-10 18:21:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:21:52,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:21:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:21:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:21:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:21:52,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 18:21:52,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 114 transitions, 1153 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:21:52,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:21:52,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 18:21:52,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:22:00,771 INFO L124 PetriNetUnfolderBase]: 61931/85553 cut-off events. [2024-11-10 18:22:00,772 INFO L125 PetriNetUnfolderBase]: For 491898/495422 co-relation queries the response was YES. [2024-11-10 18:22:01,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374340 conditions, 85553 events. 61931/85553 cut-off events. For 491898/495422 co-relation queries the response was YES. Maximal size of possible extension queue 3384. Compared 602692 event pairs, 19930 based on Foata normal form. 1185/85288 useless extension candidates. Maximal degree in co-relation 374315. Up to 41221 conditions per place. [2024-11-10 18:22:01,555 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 180 selfloop transitions, 53 changer transitions 14/256 dead transitions. [2024-11-10 18:22:01,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 256 transitions, 2776 flow [2024-11-10 18:22:01,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:22:01,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:22:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 203 transitions. [2024-11-10 18:22:01,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6265432098765432 [2024-11-10 18:22:01,557 INFO L175 Difference]: Start difference. First operand has 86 places, 114 transitions, 1153 flow. Second operand 6 states and 203 transitions. [2024-11-10 18:22:01,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 256 transitions, 2776 flow [2024-11-10 18:22:01,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 256 transitions, 2768 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-10 18:22:01,873 INFO L231 Difference]: Finished difference. Result has 95 places, 137 transitions, 1589 flow [2024-11-10 18:22:01,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1589, PETRI_PLACES=95, PETRI_TRANSITIONS=137} [2024-11-10 18:22:01,875 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 41 predicate places. [2024-11-10 18:22:01,875 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 137 transitions, 1589 flow [2024-11-10 18:22:01,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:22:01,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:22:01,876 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:22:01,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:22:01,876 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:22:01,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:22:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1738931505, now seen corresponding path program 7 times [2024-11-10 18:22:01,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:22:01,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194242884] [2024-11-10 18:22:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:22:01,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:22:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:22:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:22:01,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:22:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194242884] [2024-11-10 18:22:01,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194242884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:22:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209038049] [2024-11-10 18:22:01,985 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 18:22:01,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:22:01,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:22:01,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:22:01,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:22:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:22:02,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:22:02,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:22:02,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:22:02,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:22:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:22:02,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209038049] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:22:02,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:22:02,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-10 18:22:02,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589568701] [2024-11-10 18:22:02,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:22:02,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:22:02,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:22:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:22:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:22:02,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 18:22:02,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 137 transitions, 1589 flow. Second operand has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 9 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:22:02,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:22:02,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 18:22:02,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:22:10,729 INFO L124 PetriNetUnfolderBase]: 56553/77686 cut-off events. [2024-11-10 18:22:10,729 INFO L125 PetriNetUnfolderBase]: For 673696/676929 co-relation queries the response was YES. [2024-11-10 18:22:11,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387339 conditions, 77686 events. 56553/77686 cut-off events. For 673696/676929 co-relation queries the response was YES. Maximal size of possible extension queue 2823. Compared 524220 event pairs, 12234 based on Foata normal form. 2796/79263 useless extension candidates. Maximal degree in co-relation 387309. Up to 23900 conditions per place. [2024-11-10 18:22:12,022 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 276 selfloop transitions, 71 changer transitions 19/374 dead transitions. [2024-11-10 18:22:12,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 374 transitions, 4795 flow [2024-11-10 18:22:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:22:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:22:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2024-11-10 18:22:12,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6180555555555556 [2024-11-10 18:22:12,024 INFO L175 Difference]: Start difference. First operand has 95 places, 137 transitions, 1589 flow. Second operand 8 states and 267 transitions. [2024-11-10 18:22:12,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 374 transitions, 4795 flow [2024-11-10 18:22:12,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 374 transitions, 4713 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-10 18:22:12,653 INFO L231 Difference]: Finished difference. Result has 109 places, 169 transitions, 2708 flow [2024-11-10 18:22:12,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1413, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2708, PETRI_PLACES=109, PETRI_TRANSITIONS=169} [2024-11-10 18:22:12,654 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 55 predicate places. [2024-11-10 18:22:12,654 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 169 transitions, 2708 flow [2024-11-10 18:22:12,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 9 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:22:12,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:22:12,655 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:22:12,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 18:22:12,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-10 18:22:12,856 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:22:12,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:22:12,856 INFO L85 PathProgramCache]: Analyzing trace with hash 662809071, now seen corresponding path program 1 times [2024-11-10 18:22:12,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:22:12,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152136439] [2024-11-10 18:22:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:22:12,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:22:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:22:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 18:22:12,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:22:12,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152136439] [2024-11-10 18:22:12,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152136439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:22:12,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:22:12,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:22:12,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923253401] [2024-11-10 18:22:12,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:22:12,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:22:12,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:22:12,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:22:12,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:22:13,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 18:22:13,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 169 transitions, 2708 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:22:13,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:22:13,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 18:22:13,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand