./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/bench-exp2x6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d 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/bench-exp2x6.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 1f93f8af6c620ba8dc44e82cf4c30bbca874545f3e3802e43ba4e1345a3afed4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:45:16,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:45:16,708 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:45:16,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:45:16,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:45:16,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:45:16,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:45:16,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:45:16,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:45:16,764 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:45:16,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:45:16,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:45:16,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:45:16,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:45:16,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:45:16,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:45:16,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:45:16,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:45:16,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:45:16,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:45:16,767 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:45:16,769 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:45:16,769 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:45:16,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:45:16,770 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:45:16,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:45:16,770 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:45:16,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:45:16,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:45:16,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:45:16,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:45:16,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:45:16,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:45:16,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:45:16,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:45:16,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:45:16,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:45:16,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:45:16,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:45:16,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:45:16,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:45:16,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:45:16,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f93f8af6c620ba8dc44e82cf4c30bbca874545f3e3802e43ba4e1345a3afed4 [2024-11-09 10:45:17,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:45:17,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:45:17,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:45:17,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:45:17,072 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:45:17,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench-exp2x6.wvr.c [2024-11-09 10:45:18,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:45:18,744 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:45:18,744 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x6.wvr.c [2024-11-09 10:45:18,753 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7232704/80e9842981504b87b6f4519e364769b3/FLAG804ae7bbc [2024-11-09 10:45:18,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7232704/80e9842981504b87b6f4519e364769b3 [2024-11-09 10:45:18,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:45:18,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:45:18,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:45:18,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:45:18,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:45:18,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:18" (1/1) ... [2024-11-09 10:45:18,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224f538c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:18, skipping insertion in model container [2024-11-09 10:45:18,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:18" (1/1) ... [2024-11-09 10:45:18,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:45:19,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:45:19,023 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:45:19,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:45:19,064 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:45:19,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19 WrapperNode [2024-11-09 10:45:19,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:45:19,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:45:19,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:45:19,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:45:19,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,105 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-09 10:45:19,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:45:19,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:45:19,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:45:19,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:45:19,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,118 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,143 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]. [2024-11-09 10:45:19,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:45:19,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:45:19,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:45:19,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:45:19,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (1/1) ... [2024-11-09 10:45:19,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:45:19,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:45:19,201 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) [2024-11-09 10:45:19,203 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 [2024-11-09 10:45:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:45:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 10:45:19,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 10:45:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 10:45:19,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 10:45:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 10:45:19,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 10:45:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-09 10:45:19,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-09 10:45:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:45:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:45:19,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:45:19,244 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:45:19,327 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:45:19,329 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:45:19,522 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:45:19,522 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:45:19,725 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:45:19,725 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 10:45:19,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:45:19 BoogieIcfgContainer [2024-11-09 10:45:19,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:45:19,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:45:19,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:45:19,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:45:19,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:45:18" (1/3) ... [2024-11-09 10:45:19,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528e667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:45:19, skipping insertion in model container [2024-11-09 10:45:19,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:19" (2/3) ... [2024-11-09 10:45:19,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528e667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:45:19, skipping insertion in model container [2024-11-09 10:45:19,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:45:19" (3/3) ... [2024-11-09 10:45:19,753 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2024-11-09 10:45:19,766 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:45:19,767 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 10:45:19,767 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:45:19,819 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 10:45:19,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 96 flow [2024-11-09 10:45:19,889 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-09 10:45:19,890 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 10:45:19,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 30 events. 4/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-09 10:45:19,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 34 transitions, 96 flow [2024-11-09 10:45:19,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2024-11-09 10:45:19,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:45:19,919 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;@15f509e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:45:19,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 10:45:19,932 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:45:19,932 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-09 10:45:19,932 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 10:45:19,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:19,933 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] [2024-11-09 10:45:19,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:19,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:19,940 INFO L85 PathProgramCache]: Analyzing trace with hash -257939757, now seen corresponding path program 1 times [2024-11-09 10:45:19,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:19,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673714150] [2024-11-09 10:45:19,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:19,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:20,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673714150] [2024-11-09 10:45:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673714150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:20,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:20,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:45:20,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457160160] [2024-11-09 10:45:20,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:20,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:45:20,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:20,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:45:20,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:45:20,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:20,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-09 10:45:20,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:20,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:20,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:20,825 INFO L124 PetriNetUnfolderBase]: 1367/1732 cut-off events. [2024-11-09 10:45:20,826 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-09 10:45:20,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3611 conditions, 1732 events. 1367/1732 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5593 event pairs, 123 based on Foata normal form. 2/999 useless extension candidates. Maximal degree in co-relation 3091. Up to 1541 conditions per place. [2024-11-09 10:45:20,847 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 35 selfloop transitions, 5 changer transitions 1/46 dead transitions. [2024-11-09 10:45:20,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 219 flow [2024-11-09 10:45:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:45:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:45:20,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-09 10:45:20,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-11-09 10:45:20,863 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 82 flow. Second operand 3 states and 73 transitions. [2024-11-09 10:45:20,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 219 flow [2024-11-09 10:45:20,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 46 transitions, 189 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-09 10:45:20,873 INFO L231 Difference]: Finished difference. Result has 31 places, 31 transitions, 95 flow [2024-11-09 10:45:20,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=31, PETRI_TRANSITIONS=31} [2024-11-09 10:45:20,879 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -7 predicate places. [2024-11-09 10:45:20,881 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 31 transitions, 95 flow [2024-11-09 10:45:20,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-09 10:45:20,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:20,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:20,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:45:20,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:20,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:20,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1421632519, now seen corresponding path program 1 times [2024-11-09 10:45:20,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:20,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886939291] [2024-11-09 10:45:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:20,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:21,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:21,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886939291] [2024-11-09 10:45:21,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886939291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:21,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:21,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:21,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228171152] [2024-11-09 10:45:21,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:21,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:21,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:21,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:21,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:21,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:21,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:21,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:21,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:21,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:21,369 INFO L124 PetriNetUnfolderBase]: 1593/2038 cut-off events. [2024-11-09 10:45:21,369 INFO L125 PetriNetUnfolderBase]: For 483/483 co-relation queries the response was YES. [2024-11-09 10:45:21,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 2038 events. 1593/2038 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7039 event pairs, 113 based on Foata normal form. 34/2068 useless extension candidates. Maximal degree in co-relation 1272. Up to 842 conditions per place. [2024-11-09 10:45:21,392 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 66 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2024-11-09 10:45:21,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 81 transitions, 391 flow [2024-11-09 10:45:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-09 10:45:21,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2024-11-09 10:45:21,397 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 95 flow. Second operand 5 states and 120 transitions. [2024-11-09 10:45:21,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 81 transitions, 391 flow [2024-11-09 10:45:21,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 81 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:45:21,403 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 155 flow [2024-11-09 10:45:21,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2024-11-09 10:45:21,404 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-09 10:45:21,405 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 155 flow [2024-11-09 10:45:21,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:21,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:21,406 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:21,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:45:21,406 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:21,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:21,408 INFO L85 PathProgramCache]: Analyzing trace with hash -471259311, now seen corresponding path program 1 times [2024-11-09 10:45:21,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:21,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553365901] [2024-11-09 10:45:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:21,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:21,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:21,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:21,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553365901] [2024-11-09 10:45:21,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553365901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:21,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:21,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:21,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824406961] [2024-11-09 10:45:21,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:21,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:21,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:21,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:21,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:21,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:21,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:21,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:21,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:21,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:21,845 INFO L124 PetriNetUnfolderBase]: 1921/2549 cut-off events. [2024-11-09 10:45:21,846 INFO L125 PetriNetUnfolderBase]: For 3334/3334 co-relation queries the response was YES. [2024-11-09 10:45:21,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7920 conditions, 2549 events. 1921/2549 cut-off events. For 3334/3334 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 10095 event pairs, 288 based on Foata normal form. 64/2589 useless extension candidates. Maximal degree in co-relation 3126. Up to 1063 conditions per place. [2024-11-09 10:45:21,865 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 79 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-09 10:45:21,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 92 transitions, 571 flow [2024-11-09 10:45:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:21,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-11-09 10:45:21,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6647058823529411 [2024-11-09 10:45:21,869 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 155 flow. Second operand 5 states and 113 transitions. [2024-11-09 10:45:21,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 92 transitions, 571 flow [2024-11-09 10:45:21,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 92 transitions, 571 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 10:45:21,875 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 210 flow [2024-11-09 10:45:21,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=210, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2024-11-09 10:45:21,877 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2024-11-09 10:45:21,878 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 210 flow [2024-11-09 10:45:21,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:21,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:21,879 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:21,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:45:21,879 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:21,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:21,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1412982213, now seen corresponding path program 2 times [2024-11-09 10:45:21,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:21,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981572359] [2024-11-09 10:45:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:21,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:21,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:21,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981572359] [2024-11-09 10:45:21,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981572359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:21,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:21,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:21,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962834451] [2024-11-09 10:45:21,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:21,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:21,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:21,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:21,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:21,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:21,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:21,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:21,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:22,286 INFO L124 PetriNetUnfolderBase]: 1835/2445 cut-off events. [2024-11-09 10:45:22,286 INFO L125 PetriNetUnfolderBase]: For 4078/4078 co-relation queries the response was YES. [2024-11-09 10:45:22,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9087 conditions, 2445 events. 1835/2445 cut-off events. For 4078/4078 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 9956 event pairs, 348 based on Foata normal form. 90/2527 useless extension candidates. Maximal degree in co-relation 4692. Up to 1412 conditions per place. [2024-11-09 10:45:22,306 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 83 selfloop transitions, 10 changer transitions 0/98 dead transitions. [2024-11-09 10:45:22,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 98 transitions, 649 flow [2024-11-09 10:45:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-09 10:45:22,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-09 10:45:22,308 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 210 flow. Second operand 5 states and 119 transitions. [2024-11-09 10:45:22,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 98 transitions, 649 flow [2024-11-09 10:45:22,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 98 transitions, 649 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 10:45:22,317 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 264 flow [2024-11-09 10:45:22,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2024-11-09 10:45:22,318 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2024-11-09 10:45:22,318 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 264 flow [2024-11-09 10:45:22,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:22,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:22,318 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:22,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:45:22,319 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:22,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:22,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1456669032, now seen corresponding path program 1 times [2024-11-09 10:45:22,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:22,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74928184] [2024-11-09 10:45:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:22,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:22,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74928184] [2024-11-09 10:45:22,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74928184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:22,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:22,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:22,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51755184] [2024-11-09 10:45:22,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:22,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:22,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:22,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:22,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:22,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:22,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:22,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:22,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:22,719 INFO L124 PetriNetUnfolderBase]: 1783/2380 cut-off events. [2024-11-09 10:45:22,720 INFO L125 PetriNetUnfolderBase]: For 6417/6417 co-relation queries the response was YES. [2024-11-09 10:45:22,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9796 conditions, 2380 events. 1783/2380 cut-off events. For 6417/6417 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 9730 event pairs, 131 based on Foata normal form. 52/2430 useless extension candidates. Maximal degree in co-relation 5285. Up to 1057 conditions per place. [2024-11-09 10:45:22,747 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 84 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2024-11-09 10:45:22,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 673 flow [2024-11-09 10:45:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:22,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2024-11-09 10:45:22,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6941176470588235 [2024-11-09 10:45:22,752 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 264 flow. Second operand 5 states and 118 transitions. [2024-11-09 10:45:22,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 97 transitions, 673 flow [2024-11-09 10:45:22,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 664 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 10:45:22,765 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 269 flow [2024-11-09 10:45:22,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=269, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-11-09 10:45:22,767 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-09 10:45:22,768 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 269 flow [2024-11-09 10:45:22,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:22,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:22,769 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:22,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:45:22,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:22,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash 708257647, now seen corresponding path program 2 times [2024-11-09 10:45:22,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:22,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716025128] [2024-11-09 10:45:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:22,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:22,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716025128] [2024-11-09 10:45:22,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716025128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:22,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:22,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:22,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918194148] [2024-11-09 10:45:22,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:22,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:22,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:22,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:22,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:22,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:22,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 269 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:22,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:22,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:22,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:23,107 INFO L124 PetriNetUnfolderBase]: 1610/2155 cut-off events. [2024-11-09 10:45:23,107 INFO L125 PetriNetUnfolderBase]: For 6953/6957 co-relation queries the response was YES. [2024-11-09 10:45:23,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9113 conditions, 2155 events. 1610/2155 cut-off events. For 6953/6957 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8238 event pairs, 91 based on Foata normal form. 32/2167 useless extension candidates. Maximal degree in co-relation 5267. Up to 897 conditions per place. [2024-11-09 10:45:23,127 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 92 selfloop transitions, 11 changer transitions 0/108 dead transitions. [2024-11-09 10:45:23,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 108 transitions, 889 flow [2024-11-09 10:45:23,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2024-11-09 10:45:23,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6588235294117647 [2024-11-09 10:45:23,129 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 269 flow. Second operand 5 states and 112 transitions. [2024-11-09 10:45:23,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 108 transitions, 889 flow [2024-11-09 10:45:23,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 108 transitions, 864 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-09 10:45:23,140 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 321 flow [2024-11-09 10:45:23,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2024-11-09 10:45:23,142 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-09 10:45:23,142 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 321 flow [2024-11-09 10:45:23,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:23,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:23,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:23,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:45:23,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:23,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:23,143 INFO L85 PathProgramCache]: Analyzing trace with hash -719879476, now seen corresponding path program 1 times [2024-11-09 10:45:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329826021] [2024-11-09 10:45:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:23,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:23,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:23,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329826021] [2024-11-09 10:45:23,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329826021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:23,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:23,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741463260] [2024-11-09 10:45:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:23,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:23,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:23,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:23,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:23,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 321 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:23,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:23,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:23,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:23,489 INFO L124 PetriNetUnfolderBase]: 1577/2122 cut-off events. [2024-11-09 10:45:23,489 INFO L125 PetriNetUnfolderBase]: For 7117/7121 co-relation queries the response was YES. [2024-11-09 10:45:23,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9586 conditions, 2122 events. 1577/2122 cut-off events. For 7117/7121 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8186 event pairs, 71 based on Foata normal form. 34/2136 useless extension candidates. Maximal degree in co-relation 6031. Up to 983 conditions per place. [2024-11-09 10:45:23,508 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 88 selfloop transitions, 8 changer transitions 4/105 dead transitions. [2024-11-09 10:45:23,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 105 transitions, 873 flow [2024-11-09 10:45:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-11-09 10:45:23,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2024-11-09 10:45:23,510 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 321 flow. Second operand 5 states and 110 transitions. [2024-11-09 10:45:23,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 105 transitions, 873 flow [2024-11-09 10:45:23,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 105 transitions, 862 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-09 10:45:23,518 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 324 flow [2024-11-09 10:45:23,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=324, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2024-11-09 10:45:23,519 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-09 10:45:23,519 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 324 flow [2024-11-09 10:45:23,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:23,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:23,520 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:23,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:45:23,520 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:23,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:23,521 INFO L85 PathProgramCache]: Analyzing trace with hash -562335150, now seen corresponding path program 2 times [2024-11-09 10:45:23,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:23,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089753280] [2024-11-09 10:45:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:23,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:23,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:23,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089753280] [2024-11-09 10:45:23,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089753280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:23,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:23,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:23,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063263917] [2024-11-09 10:45:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:23,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:23,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:23,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:23,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:23,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:23,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:23,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:23,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:23,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:23,867 INFO L124 PetriNetUnfolderBase]: 1515/2072 cut-off events. [2024-11-09 10:45:23,868 INFO L125 PetriNetUnfolderBase]: For 7430/7434 co-relation queries the response was YES. [2024-11-09 10:45:23,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9630 conditions, 2072 events. 1515/2072 cut-off events. For 7430/7434 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 8412 event pairs, 258 based on Foata normal form. 63/2115 useless extension candidates. Maximal degree in co-relation 6059. Up to 1124 conditions per place. [2024-11-09 10:45:23,885 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 91 selfloop transitions, 8 changer transitions 0/104 dead transitions. [2024-11-09 10:45:23,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 104 transitions, 893 flow [2024-11-09 10:45:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:23,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-11-09 10:45:23,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352941176470588 [2024-11-09 10:45:23,886 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 324 flow. Second operand 5 states and 108 transitions. [2024-11-09 10:45:23,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 104 transitions, 893 flow [2024-11-09 10:45:23,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 880 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-09 10:45:23,897 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 364 flow [2024-11-09 10:45:23,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=364, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-11-09 10:45:23,898 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 28 predicate places. [2024-11-09 10:45:23,898 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 364 flow [2024-11-09 10:45:23,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:23,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:23,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:23,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:45:23,900 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:23,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1948816492, now seen corresponding path program 2 times [2024-11-09 10:45:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:23,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868590184] [2024-11-09 10:45:23,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:23,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:23,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:23,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868590184] [2024-11-09 10:45:23,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868590184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:45:23,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:45:23,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:45:23,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916488392] [2024-11-09 10:45:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:45:23,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:45:23,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:23,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:45:23,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:45:23,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:23,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:23,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:23,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:23,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:24,290 INFO L124 PetriNetUnfolderBase]: 1447/1987 cut-off events. [2024-11-09 10:45:24,290 INFO L125 PetriNetUnfolderBase]: For 7054/7054 co-relation queries the response was YES. [2024-11-09 10:45:24,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9793 conditions, 1987 events. 1447/1987 cut-off events. For 7054/7054 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8176 event pairs, 375 based on Foata normal form. 68/2047 useless extension candidates. Maximal degree in co-relation 8664. Up to 1150 conditions per place. [2024-11-09 10:45:24,306 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 111 selfloop transitions, 8 changer transitions 0/124 dead transitions. [2024-11-09 10:45:24,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 124 transitions, 1094 flow [2024-11-09 10:45:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:45:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:45:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-11-09 10:45:24,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6823529411764706 [2024-11-09 10:45:24,308 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 364 flow. Second operand 5 states and 116 transitions. [2024-11-09 10:45:24,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 124 transitions, 1094 flow [2024-11-09 10:45:24,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 124 transitions, 1036 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-11-09 10:45:24,319 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 401 flow [2024-11-09 10:45:24,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=401, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2024-11-09 10:45:24,320 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-09 10:45:24,321 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 401 flow [2024-11-09 10:45:24,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:45:24,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:24,322 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:24,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:45:24,322 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:24,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash -716440764, now seen corresponding path program 1 times [2024-11-09 10:45:24,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:24,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850165983] [2024-11-09 10:45:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:24,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:24,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:24,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850165983] [2024-11-09 10:45:24,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850165983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:45:24,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863144551] [2024-11-09 10:45:24,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:24,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:45:24,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:45:24,851 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) [2024-11-09 10:45:24,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 10:45:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:25,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 10:45:25,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:45:27,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:27,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:45:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:28,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863144551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:45:28,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:45:28,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-09 10:45:28,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463859040] [2024-11-09 10:45:28,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:45:28,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:45:28,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:28,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:45:28,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:45:28,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:28,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 401 flow. Second operand has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 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) [2024-11-09 10:45:28,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:28,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:28,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:34,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:45:35,138 INFO L124 PetriNetUnfolderBase]: 2032/2799 cut-off events. [2024-11-09 10:45:35,138 INFO L125 PetriNetUnfolderBase]: For 10221/10221 co-relation queries the response was YES. [2024-11-09 10:45:35,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13891 conditions, 2799 events. 2032/2799 cut-off events. For 10221/10221 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 12212 event pairs, 277 based on Foata normal form. 2/2793 useless extension candidates. Maximal degree in co-relation 12592. Up to 1959 conditions per place. [2024-11-09 10:45:35,165 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 124 selfloop transitions, 31 changer transitions 4/164 dead transitions. [2024-11-09 10:45:35,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 164 transitions, 1372 flow [2024-11-09 10:45:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:45:35,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:45:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 208 transitions. [2024-11-09 10:45:35,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6797385620915033 [2024-11-09 10:45:35,168 INFO L175 Difference]: Start difference. First operand has 70 places, 55 transitions, 401 flow. Second operand 9 states and 208 transitions. [2024-11-09 10:45:35,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 164 transitions, 1372 flow [2024-11-09 10:45:35,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 164 transitions, 1347 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-09 10:45:35,188 INFO L231 Difference]: Finished difference. Result has 82 places, 81 transitions, 742 flow [2024-11-09 10:45:35,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=742, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2024-11-09 10:45:35,191 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 44 predicate places. [2024-11-09 10:45:35,191 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 742 flow [2024-11-09 10:45:35,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 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) [2024-11-09 10:45:35,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:45:35,192 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:45:35,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 10:45:35,392 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,SelfDestructingSolverStorable9 [2024-11-09 10:45:35,393 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:45:35,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:45:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1457706674, now seen corresponding path program 2 times [2024-11-09 10:45:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:45:35,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789386054] [2024-11-09 10:45:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:45:35,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:45:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:45:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:45:35,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789386054] [2024-11-09 10:45:35,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789386054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:45:35,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878093939] [2024-11-09 10:45:35,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 10:45:35,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:45:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:45:35,961 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) [2024-11-09 10:45:35,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 10:45:36,326 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 10:45:36,326 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:45:36,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 10:45:36,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:45:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:52,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:45:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:45:53,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878093939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:45:53,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:45:53,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-09 10:45:53,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913699385] [2024-11-09 10:45:53,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:45:53,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:45:53,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:45:53,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:45:53,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:45:53,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-09 10:45:53,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 742 flow. Second operand has 14 states, 14 states have (on average 14.071428571428571) internal successors, (197), 14 states have internal predecessors, (197), 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) [2024-11-09 10:45:53,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:45:53,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-09 10:45:53,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:45:59,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:03,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:08,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:12,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:20,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:24,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:27,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:29,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:31,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:33,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:35,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:43,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:47,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:52,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 10:46:53,365 INFO L124 PetriNetUnfolderBase]: 3294/4552 cut-off events. [2024-11-09 10:46:53,365 INFO L125 PetriNetUnfolderBase]: For 19355/19355 co-relation queries the response was YES. [2024-11-09 10:46:53,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24240 conditions, 4552 events. 3294/4552 cut-off events. For 19355/19355 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 21045 event pairs, 380 based on Foata normal form. 5/4549 useless extension candidates. Maximal degree in co-relation 23365. Up to 2528 conditions per place. [2024-11-09 10:46:53,428 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 188 selfloop transitions, 54 changer transitions 9/256 dead transitions. [2024-11-09 10:46:53,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 256 transitions, 2494 flow [2024-11-09 10:46:53,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 10:46:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 10:46:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 277 transitions. [2024-11-09 10:46:53,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.678921568627451 [2024-11-09 10:46:53,431 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 742 flow. Second operand 12 states and 277 transitions. [2024-11-09 10:46:53,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 256 transitions, 2494 flow [2024-11-09 10:46:53,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 256 transitions, 2443 flow, removed 23 selfloop flow, removed 1 redundant places. [2024-11-09 10:46:53,491 INFO L231 Difference]: Finished difference. Result has 100 places, 131 transitions, 1477 flow [2024-11-09 10:46:53,492 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1477, PETRI_PLACES=100, PETRI_TRANSITIONS=131} [2024-11-09 10:46:53,493 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2024-11-09 10:46:53,493 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 131 transitions, 1477 flow [2024-11-09 10:46:53,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.071428571428571) internal successors, (197), 14 states have internal predecessors, (197), 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) [2024-11-09 10:46:53,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:46:53,494 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:46:53,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 10:46:53,697 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,SelfDestructingSolverStorable10 [2024-11-09 10:46:53,698 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:46:53,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:46:53,698 INFO L85 PathProgramCache]: Analyzing trace with hash 383872642, now seen corresponding path program 1 times [2024-11-09 10:46:53,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:46:53,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32848348] [2024-11-09 10:46:53,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:46:53,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:46:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:46:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:46:54,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:46:54,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32848348] [2024-11-09 10:46:54,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32848348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:46:54,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179901926] [2024-11-09 10:46:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:46:54,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:46:54,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:46:54,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:46:54,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 10:46:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:46:54,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 10:46:54,229 INFO L278 TraceCheckSpWp]: Computing forward predicates...