./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:03:27,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:03:27,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:03:27,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:03:27,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:03:27,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:03:27,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:03:27,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:03:27,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:03:27,408 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:03:27,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:03:27,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:03:27,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:03:27,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:03:27,409 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:03:27,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:03:27,410 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:03:27,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:03:27,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:03:27,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:03:27,411 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:03:27,412 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:03:27,412 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:03:27,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:03:27,413 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:03:27,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:03:27,413 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:03:27,413 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:03:27,413 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:03:27,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:03:27,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:03:27,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:03:27,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:03:27,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:03:27,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:03:27,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:03:27,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:03:27,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:03:27,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:03:27,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:03:27,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:03:27,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:03:27,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 [2024-10-24 19:03:27,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:03:27,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:03:27,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:03:27,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:03:27,659 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:03:27,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:03:28,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:03:29,068 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:03:29,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:03:29,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d5795d6/97ef74d310fc4dd9bbea78b07fba8ca8/FLAGb08b23b69 [2024-10-24 19:03:29,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d5795d6/97ef74d310fc4dd9bbea78b07fba8ca8 [2024-10-24 19:03:29,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:03:29,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:03:29,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:03:29,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:03:29,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:03:29,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec2b7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29, skipping insertion in model container [2024-10-24 19:03:29,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:03:29,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:03:29,770 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:03:29,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:03:29,840 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:03:29,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29 WrapperNode [2024-10-24 19:03:29,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:03:29,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:03:29,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:03:29,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:03:29,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,871 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-10-24 19:03:29,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:03:29,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:03:29,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:03:29,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:03:29,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,889 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 19:03:29,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:03:29,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:03:29,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:03:29,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:03:29,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (1/1) ... [2024-10-24 19:03:29,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:03:29,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:03:29,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:03:29,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:03:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:03:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:03:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:03:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:03:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:03:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:03:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:03:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:03:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:03:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:03:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:03:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:03:29,965 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:03:30,071 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:03:30,074 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:03:30,192 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:03:30,192 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:03:30,263 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:03:30,263 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:03:30,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:30 BoogieIcfgContainer [2024-10-24 19:03:30,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:03:30,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:03:30,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:03:30,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:03:30,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:03:29" (1/3) ... [2024-10-24 19:03:30,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb62085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:03:30, skipping insertion in model container [2024-10-24 19:03:30,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:29" (2/3) ... [2024-10-24 19:03:30,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb62085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:03:30, skipping insertion in model container [2024-10-24 19:03:30,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:30" (3/3) ... [2024-10-24 19:03:30,269 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:03:30,280 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:03:30,281 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:03:30,281 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:03:30,306 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:03:30,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-10-24 19:03:30,376 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-10-24 19:03:30,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:30,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-10-24 19:03:30,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-10-24 19:03:30,387 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-10-24 19:03:30,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:03:30,401 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;@40cd7601, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:03:30,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-24 19:03:30,412 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:03:30,413 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-10-24 19:03:30,413 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:30,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:30,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:30,415 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:30,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash 136525165, now seen corresponding path program 1 times [2024-10-24 19:03:30,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:30,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435329367] [2024-10-24 19:03:30,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:30,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:30,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:30,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435329367] [2024-10-24 19:03:30,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435329367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:30,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:30,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:03:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516554236] [2024-10-24 19:03:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:30,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:03:30,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:30,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:03:30,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:03:30,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-10-24 19:03:30,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:30,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:30,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-10-24 19:03:30,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:30,859 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-10-24 19:03:30,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:30,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1179 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-10-24 19:03:30,864 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-10-24 19:03:30,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-10-24 19:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:03:30,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:03:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-10-24 19:03:30,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-10-24 19:03:30,875 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-10-24 19:03:30,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-10-24 19:03:30,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 19:03:30,880 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-10-24 19:03:30,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-10-24 19:03:30,884 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-10-24 19:03:30,884 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-10-24 19:03:30,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:30,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:30,885 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:30,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:03:30,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:30,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:30,887 INFO L85 PathProgramCache]: Analyzing trace with hash 136526718, now seen corresponding path program 1 times [2024-10-24 19:03:30,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:30,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868235619] [2024-10-24 19:03:30,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:30,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:31,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:31,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868235619] [2024-10-24 19:03:31,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868235619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:31,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:31,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:03:31,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220452294] [2024-10-24 19:03:31,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:31,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:03:31,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:31,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:03:31,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:03:31,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:03:31,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:31,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:31,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:03:31,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:31,594 INFO L124 PetriNetUnfolderBase]: 2017/3652 cut-off events. [2024-10-24 19:03:31,594 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:31,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6758 conditions, 3652 events. 2017/3652 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 26620 event pairs, 489 based on Foata normal form. 0/3511 useless extension candidates. Maximal degree in co-relation 6752. Up to 965 conditions per place. [2024-10-24 19:03:31,615 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 30 selfloop transitions, 7 changer transitions 61/112 dead transitions. [2024-10-24 19:03:31,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 112 transitions, 432 flow [2024-10-24 19:03:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:03:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:03:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 262 transitions. [2024-10-24 19:03:31,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-10-24 19:03:31,618 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 262 transitions. [2024-10-24 19:03:31,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 112 transitions, 432 flow [2024-10-24 19:03:31,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 112 transitions, 431 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:03:31,624 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 173 flow [2024-10-24 19:03:31,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=173, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2024-10-24 19:03:31,624 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-10-24 19:03:31,625 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 173 flow [2024-10-24 19:03:31,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:31,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:31,625 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:31,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:03:31,626 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:31,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash -26836259, now seen corresponding path program 1 times [2024-10-24 19:03:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911516648] [2024-10-24 19:03:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:31,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:31,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911516648] [2024-10-24 19:03:31,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911516648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:31,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:31,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:03:31,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990912342] [2024-10-24 19:03:31,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:31,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:31,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:31,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:31,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:31,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:03:31,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:31,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:31,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:03:31,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:32,217 INFO L124 PetriNetUnfolderBase]: 1351/2639 cut-off events. [2024-10-24 19:03:32,218 INFO L125 PetriNetUnfolderBase]: For 4731/4739 co-relation queries the response was YES. [2024-10-24 19:03:32,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8055 conditions, 2639 events. 1351/2639 cut-off events. For 4731/4739 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 18885 event pairs, 204 based on Foata normal form. 82/2704 useless extension candidates. Maximal degree in co-relation 8040. Up to 774 conditions per place. [2024-10-24 19:03:32,233 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 37 selfloop transitions, 8 changer transitions 58/117 dead transitions. [2024-10-24 19:03:32,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 117 transitions, 835 flow [2024-10-24 19:03:32,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:03:32,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:03:32,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 273 transitions. [2024-10-24 19:03:32,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204545454545455 [2024-10-24 19:03:32,236 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 173 flow. Second operand 10 states and 273 transitions. [2024-10-24 19:03:32,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 117 transitions, 835 flow [2024-10-24 19:03:32,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 117 transitions, 717 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-10-24 19:03:32,256 INFO L231 Difference]: Finished difference. Result has 66 places, 44 transitions, 233 flow [2024-10-24 19:03:32,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=233, PETRI_PLACES=66, PETRI_TRANSITIONS=44} [2024-10-24 19:03:32,258 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-10-24 19:03:32,258 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 44 transitions, 233 flow [2024-10-24 19:03:32,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:32,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:32,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:32,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:03:32,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:32,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:32,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1841796569, now seen corresponding path program 1 times [2024-10-24 19:03:32,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:32,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372113810] [2024-10-24 19:03:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:32,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:32,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:32,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372113810] [2024-10-24 19:03:32,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372113810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:32,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:32,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:03:32,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992949869] [2024-10-24 19:03:32,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:32,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:32,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:32,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:32,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:32,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:03:32,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 44 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:32,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:32,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:03:32,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:32,695 INFO L124 PetriNetUnfolderBase]: 1199/2335 cut-off events. [2024-10-24 19:03:32,695 INFO L125 PetriNetUnfolderBase]: For 6712/6716 co-relation queries the response was YES. [2024-10-24 19:03:32,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7907 conditions, 2335 events. 1199/2335 cut-off events. For 6712/6716 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 16334 event pairs, 115 based on Foata normal form. 75/2390 useless extension candidates. Maximal degree in co-relation 7885. Up to 662 conditions per place. [2024-10-24 19:03:32,709 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 43 selfloop transitions, 12 changer transitions 52/121 dead transitions. [2024-10-24 19:03:32,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 121 transitions, 919 flow [2024-10-24 19:03:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:03:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:03:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 271 transitions. [2024-10-24 19:03:32,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.615909090909091 [2024-10-24 19:03:32,711 INFO L175 Difference]: Start difference. First operand has 66 places, 44 transitions, 233 flow. Second operand 10 states and 271 transitions. [2024-10-24 19:03:32,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 121 transitions, 919 flow [2024-10-24 19:03:32,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 121 transitions, 872 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-10-24 19:03:32,743 INFO L231 Difference]: Finished difference. Result has 75 places, 50 transitions, 355 flow [2024-10-24 19:03:32,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=355, PETRI_PLACES=75, PETRI_TRANSITIONS=50} [2024-10-24 19:03:32,743 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-10-24 19:03:32,743 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 50 transitions, 355 flow [2024-10-24 19:03:32,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:32,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:32,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:32,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:03:32,744 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:32,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:32,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1965037120, now seen corresponding path program 1 times [2024-10-24 19:03:32,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831918999] [2024-10-24 19:03:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:32,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:32,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:32,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831918999] [2024-10-24 19:03:32,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831918999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:32,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:32,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:03:32,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572655398] [2024-10-24 19:03:32,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:32,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:32,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:32,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:32,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:03:32,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:32,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:32,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:03:32,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:33,148 INFO L124 PetriNetUnfolderBase]: 1033/2072 cut-off events. [2024-10-24 19:03:33,150 INFO L125 PetriNetUnfolderBase]: For 7777/7777 co-relation queries the response was YES. [2024-10-24 19:03:33,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7611 conditions, 2072 events. 1033/2072 cut-off events. For 7777/7777 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 14515 event pairs, 166 based on Foata normal form. 60/2096 useless extension candidates. Maximal degree in co-relation 7581. Up to 576 conditions per place. [2024-10-24 19:03:33,160 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 44 selfloop transitions, 18 changer transitions 48/124 dead transitions. [2024-10-24 19:03:33,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 124 transitions, 1087 flow [2024-10-24 19:03:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:03:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:03:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 269 transitions. [2024-10-24 19:03:33,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6113636363636363 [2024-10-24 19:03:33,162 INFO L175 Difference]: Start difference. First operand has 75 places, 50 transitions, 355 flow. Second operand 10 states and 269 transitions. [2024-10-24 19:03:33,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 124 transitions, 1087 flow [2024-10-24 19:03:33,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 124 transitions, 1013 flow, removed 35 selfloop flow, removed 7 redundant places. [2024-10-24 19:03:33,174 INFO L231 Difference]: Finished difference. Result has 80 places, 55 transitions, 480 flow [2024-10-24 19:03:33,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=480, PETRI_PLACES=80, PETRI_TRANSITIONS=55} [2024-10-24 19:03:33,177 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-10-24 19:03:33,177 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 55 transitions, 480 flow [2024-10-24 19:03:33,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:33,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:33,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:33,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:03:33,177 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:33,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -424267733, now seen corresponding path program 1 times [2024-10-24 19:03:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:33,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915388839] [2024-10-24 19:03:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:33,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:33,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915388839] [2024-10-24 19:03:33,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915388839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:33,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:33,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:03:33,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962793834] [2024-10-24 19:03:33,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:33,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:03:33,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:33,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:03:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:03:33,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-24 19:03:33,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 55 transitions, 480 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:33,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:33,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-24 19:03:33,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:33,449 INFO L124 PetriNetUnfolderBase]: 652/1452 cut-off events. [2024-10-24 19:03:33,449 INFO L125 PetriNetUnfolderBase]: For 6660/6822 co-relation queries the response was YES. [2024-10-24 19:03:33,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5469 conditions, 1452 events. 652/1452 cut-off events. For 6660/6822 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10034 event pairs, 227 based on Foata normal form. 61/1431 useless extension candidates. Maximal degree in co-relation 5435. Up to 759 conditions per place. [2024-10-24 19:03:33,489 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 28 selfloop transitions, 9 changer transitions 21/89 dead transitions. [2024-10-24 19:03:33,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 89 transitions, 878 flow [2024-10-24 19:03:33,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:03:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:03:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 200 transitions. [2024-10-24 19:03:33,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6493506493506493 [2024-10-24 19:03:33,491 INFO L175 Difference]: Start difference. First operand has 80 places, 55 transitions, 480 flow. Second operand 7 states and 200 transitions. [2024-10-24 19:03:33,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 89 transitions, 878 flow [2024-10-24 19:03:33,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 89 transitions, 832 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-10-24 19:03:33,503 INFO L231 Difference]: Finished difference. Result has 78 places, 61 transitions, 589 flow [2024-10-24 19:03:33,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=589, PETRI_PLACES=78, PETRI_TRANSITIONS=61} [2024-10-24 19:03:33,504 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2024-10-24 19:03:33,504 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 61 transitions, 589 flow [2024-10-24 19:03:33,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:33,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:33,504 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] [2024-10-24 19:03:33,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:03:33,505 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:33,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:33,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1320669226, now seen corresponding path program 1 times [2024-10-24 19:03:33,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:33,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055813175] [2024-10-24 19:03:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:33,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:33,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:33,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055813175] [2024-10-24 19:03:33,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055813175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:33,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:33,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:03:33,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366350548] [2024-10-24 19:03:33,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:33,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:33,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:33,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:33,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:33,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44 [2024-10-24 19:03:33,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 61 transitions, 589 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:33,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:33,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44 [2024-10-24 19:03:33,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:33,868 INFO L124 PetriNetUnfolderBase]: 882/1946 cut-off events. [2024-10-24 19:03:33,868 INFO L125 PetriNetUnfolderBase]: For 8209/8330 co-relation queries the response was YES. [2024-10-24 19:03:33,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7109 conditions, 1946 events. 882/1946 cut-off events. For 8209/8330 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 15117 event pairs, 380 based on Foata normal form. 63/1909 useless extension candidates. Maximal degree in co-relation 7074. Up to 682 conditions per place. [2024-10-24 19:03:33,882 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 23 selfloop transitions, 6 changer transitions 22/87 dead transitions. [2024-10-24 19:03:33,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 87 transitions, 792 flow [2024-10-24 19:03:33,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:03:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:03:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-10-24 19:03:33,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6168831168831169 [2024-10-24 19:03:33,883 INFO L175 Difference]: Start difference. First operand has 78 places, 61 transitions, 589 flow. Second operand 7 states and 190 transitions. [2024-10-24 19:03:33,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 87 transitions, 792 flow [2024-10-24 19:03:33,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 87 transitions, 757 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-10-24 19:03:33,897 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 553 flow [2024-10-24 19:03:33,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=553, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2024-10-24 19:03:33,897 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 29 predicate places. [2024-10-24 19:03:33,898 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 553 flow [2024-10-24 19:03:33,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:33,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:33,898 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] [2024-10-24 19:03:33,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:03:33,898 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:33,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:33,899 INFO L85 PathProgramCache]: Analyzing trace with hash -362027068, now seen corresponding path program 2 times [2024-10-24 19:03:33,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:33,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442732903] [2024-10-24 19:03:33,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:33,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:34,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:34,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442732903] [2024-10-24 19:03:34,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442732903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:34,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:34,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:03:34,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414276047] [2024-10-24 19:03:34,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:34,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:34,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:34,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:03:34,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:34,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:34,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:03:34,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:34,280 INFO L124 PetriNetUnfolderBase]: 1007/2108 cut-off events. [2024-10-24 19:03:34,280 INFO L125 PetriNetUnfolderBase]: For 11166/11170 co-relation queries the response was YES. [2024-10-24 19:03:34,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8061 conditions, 2108 events. 1007/2108 cut-off events. For 11166/11170 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 15495 event pairs, 216 based on Foata normal form. 40/2107 useless extension candidates. Maximal degree in co-relation 8028. Up to 519 conditions per place. [2024-10-24 19:03:34,299 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 39 selfloop transitions, 25 changer transitions 29/107 dead transitions. [2024-10-24 19:03:34,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 107 transitions, 1038 flow [2024-10-24 19:03:34,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:03:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:03:34,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-10-24 19:03:34,301 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5840909090909091 [2024-10-24 19:03:34,301 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 553 flow. Second operand 10 states and 257 transitions. [2024-10-24 19:03:34,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 107 transitions, 1038 flow [2024-10-24 19:03:34,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 107 transitions, 990 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-10-24 19:03:34,315 INFO L231 Difference]: Finished difference. Result has 85 places, 58 transitions, 606 flow [2024-10-24 19:03:34,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=606, PETRI_PLACES=85, PETRI_TRANSITIONS=58} [2024-10-24 19:03:34,318 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 37 predicate places. [2024-10-24 19:03:34,318 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 58 transitions, 606 flow [2024-10-24 19:03:34,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:34,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:34,318 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] [2024-10-24 19:03:34,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:03:34,319 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:34,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:34,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2012873126, now seen corresponding path program 1 times [2024-10-24 19:03:34,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:34,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251257508] [2024-10-24 19:03:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:34,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:34,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:34,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251257508] [2024-10-24 19:03:34,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251257508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:34,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:34,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:03:34,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738125713] [2024-10-24 19:03:34,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:34,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:03:34,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:34,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:03:34,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:03:34,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-24 19:03:34,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 58 transitions, 606 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:34,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:34,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-24 19:03:34,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:34,649 INFO L124 PetriNetUnfolderBase]: 1578/3060 cut-off events. [2024-10-24 19:03:34,650 INFO L125 PetriNetUnfolderBase]: For 7297/7420 co-relation queries the response was YES. [2024-10-24 19:03:34,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8024 conditions, 3060 events. 1578/3060 cut-off events. For 7297/7420 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 22386 event pairs, 361 based on Foata normal form. 159/3074 useless extension candidates. Maximal degree in co-relation 7985. Up to 1415 conditions per place. [2024-10-24 19:03:34,667 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2024-10-24 19:03:34,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 73 transitions, 704 flow [2024-10-24 19:03:34,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:03:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:03:34,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-10-24 19:03:34,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-10-24 19:03:34,670 INFO L175 Difference]: Start difference. First operand has 85 places, 58 transitions, 606 flow. Second operand 4 states and 122 transitions. [2024-10-24 19:03:34,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 73 transitions, 704 flow [2024-10-24 19:03:34,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 682 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-10-24 19:03:34,683 INFO L231 Difference]: Finished difference. Result has 78 places, 62 transitions, 622 flow [2024-10-24 19:03:34,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=622, PETRI_PLACES=78, PETRI_TRANSITIONS=62} [2024-10-24 19:03:34,685 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2024-10-24 19:03:34,685 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 62 transitions, 622 flow [2024-10-24 19:03:34,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:34,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:34,686 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:34,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:03:34,686 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:34,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:34,686 INFO L85 PathProgramCache]: Analyzing trace with hash -742989281, now seen corresponding path program 1 times [2024-10-24 19:03:34,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019956703] [2024-10-24 19:03:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:34,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:34,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:34,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:34,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019956703] [2024-10-24 19:03:34,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019956703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:34,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:34,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:03:34,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552503389] [2024-10-24 19:03:34,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:34,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:03:34,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:34,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:03:34,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:03:34,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-24 19:03:34,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 62 transitions, 622 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:34,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:34,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-24 19:03:34,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:34,966 INFO L124 PetriNetUnfolderBase]: 1308/2566 cut-off events. [2024-10-24 19:03:34,966 INFO L125 PetriNetUnfolderBase]: For 3217/3781 co-relation queries the response was YES. [2024-10-24 19:03:34,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7120 conditions, 2566 events. 1308/2566 cut-off events. For 3217/3781 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 17935 event pairs, 125 based on Foata normal form. 176/2616 useless extension candidates. Maximal degree in co-relation 7083. Up to 1112 conditions per place. [2024-10-24 19:03:34,977 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 34 selfloop transitions, 8 changer transitions 0/83 dead transitions. [2024-10-24 19:03:34,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 769 flow [2024-10-24 19:03:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:03:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:03:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-10-24 19:03:34,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-10-24 19:03:34,978 INFO L175 Difference]: Start difference. First operand has 78 places, 62 transitions, 622 flow. Second operand 5 states and 154 transitions. [2024-10-24 19:03:34,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 769 flow [2024-10-24 19:03:34,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 83 transitions, 750 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-24 19:03:34,984 INFO L231 Difference]: Finished difference. Result has 81 places, 66 transitions, 658 flow [2024-10-24 19:03:34,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=658, PETRI_PLACES=81, PETRI_TRANSITIONS=66} [2024-10-24 19:03:34,985 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 33 predicate places. [2024-10-24 19:03:34,985 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 66 transitions, 658 flow [2024-10-24 19:03:34,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:34,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:34,986 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:34,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:03:34,986 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:34,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:34,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1866851105, now seen corresponding path program 1 times [2024-10-24 19:03:34,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:34,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668296914] [2024-10-24 19:03:34,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:34,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:35,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:35,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668296914] [2024-10-24 19:03:35,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668296914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:35,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:35,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:03:35,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734136260] [2024-10-24 19:03:35,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:35,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:35,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:35,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:35,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:35,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-24 19:03:35,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 66 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:35,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:35,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-24 19:03:35,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:35,262 INFO L124 PetriNetUnfolderBase]: 1044/1978 cut-off events. [2024-10-24 19:03:35,262 INFO L125 PetriNetUnfolderBase]: For 3947/5253 co-relation queries the response was YES. [2024-10-24 19:03:35,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6513 conditions, 1978 events. 1044/1978 cut-off events. For 3947/5253 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 12982 event pairs, 57 based on Foata normal form. 159/2019 useless extension candidates. Maximal degree in co-relation 6475. Up to 840 conditions per place. [2024-10-24 19:03:35,269 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 26 selfloop transitions, 11 changer transitions 23/85 dead transitions. [2024-10-24 19:03:35,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 795 flow [2024-10-24 19:03:35,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:03:35,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:03:35,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-10-24 19:03:35,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-10-24 19:03:35,271 INFO L175 Difference]: Start difference. First operand has 81 places, 66 transitions, 658 flow. Second operand 6 states and 178 transitions. [2024-10-24 19:03:35,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 795 flow [2024-10-24 19:03:35,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 735 flow, removed 19 selfloop flow, removed 9 redundant places. [2024-10-24 19:03:35,277 INFO L231 Difference]: Finished difference. Result has 79 places, 50 transitions, 386 flow [2024-10-24 19:03:35,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=79, PETRI_TRANSITIONS=50} [2024-10-24 19:03:35,278 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 31 predicate places. [2024-10-24 19:03:35,278 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 50 transitions, 386 flow [2024-10-24 19:03:35,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:35,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:35,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:35,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:03:35,279 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:03:35,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1633046737, now seen corresponding path program 1 times [2024-10-24 19:03:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:35,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800144391] [2024-10-24 19:03:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:35,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:03:35,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:35,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800144391] [2024-10-24 19:03:35,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800144391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:35,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:35,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:03:35,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043735106] [2024-10-24 19:03:35,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:35,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:35,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:35,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:35,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:35,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44 [2024-10-24 19:03:35,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 50 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:35,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:35,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44 [2024-10-24 19:03:35,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:35,468 INFO L124 PetriNetUnfolderBase]: 230/514 cut-off events. [2024-10-24 19:03:35,469 INFO L125 PetriNetUnfolderBase]: For 1558/1658 co-relation queries the response was YES. [2024-10-24 19:03:35,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 514 events. 230/514 cut-off events. For 1558/1658 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2770 event pairs, 29 based on Foata normal form. 16/463 useless extension candidates. Maximal degree in co-relation 1809. Up to 264 conditions per place. [2024-10-24 19:03:35,471 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-10-24 19:03:35,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 58 transitions, 464 flow [2024-10-24 19:03:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:03:35,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:03:35,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 154 transitions. [2024-10-24 19:03:35,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-10-24 19:03:35,472 INFO L175 Difference]: Start difference. First operand has 79 places, 50 transitions, 386 flow. Second operand 6 states and 154 transitions. [2024-10-24 19:03:35,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 58 transitions, 464 flow [2024-10-24 19:03:35,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 58 transitions, 354 flow, removed 14 selfloop flow, removed 15 redundant places. [2024-10-24 19:03:35,476 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-10-24 19:03:35,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-10-24 19:03:35,476 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-10-24 19:03:35,476 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-10-24 19:03:35,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:35,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-24 19:03:35,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-24 19:03:35,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-24 19:03:35,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-24 19:03:35,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-24 19:03:35,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 19:03:35,480 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:35,486 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:03:35,486 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:03:35,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:03:35 BasicIcfg [2024-10-24 19:03:35,490 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:03:35,490 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:03:35,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:03:35,490 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:03:35,491 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:30" (3/4) ... [2024-10-24 19:03:35,492 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:03:35,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 19:03:35,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 19:03:35,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 19:03:35,497 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-24 19:03:35,497 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-24 19:03:35,498 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 19:03:35,498 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 19:03:35,563 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:03:35,563 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:03:35,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:03:35,564 INFO L158 Benchmark]: Toolchain (without parser) took 6141.96ms. Allocated memory was 169.9MB in the beginning and 281.0MB in the end (delta: 111.1MB). Free memory was 102.1MB in the beginning and 135.3MB in the end (delta: -33.2MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2024-10-24 19:03:35,564 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory was 131.2MB in the beginning and 131.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:03:35,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.03ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 126.3MB in the end (delta: -24.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-10-24 19:03:35,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.03ms. Allocated memory is still 169.9MB. Free memory was 126.3MB in the beginning and 124.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:03:35,565 INFO L158 Benchmark]: Boogie Preprocessor took 26.34ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 122.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:03:35,565 INFO L158 Benchmark]: RCFGBuilder took 364.43ms. Allocated memory is still 169.9MB. Free memory was 122.1MB in the beginning and 102.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 19:03:35,565 INFO L158 Benchmark]: TraceAbstraction took 5225.04ms. Allocated memory was 169.9MB in the beginning and 281.0MB in the end (delta: 111.1MB). Free memory was 102.0MB in the beginning and 139.5MB in the end (delta: -37.5MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2024-10-24 19:03:35,565 INFO L158 Benchmark]: Witness Printer took 73.27ms. Allocated memory is still 281.0MB. Free memory was 139.5MB in the beginning and 135.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:03:35,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory was 131.2MB in the beginning and 131.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.03ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 126.3MB in the end (delta: -24.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.03ms. Allocated memory is still 169.9MB. Free memory was 126.3MB in the beginning and 124.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.34ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 122.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.43ms. Allocated memory is still 169.9MB. Free memory was 122.1MB in the beginning and 102.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5225.04ms. Allocated memory was 169.9MB in the beginning and 281.0MB in the end (delta: 111.1MB). Free memory was 102.0MB in the beginning and 139.5MB in the end (delta: -37.5MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. * Witness Printer took 73.27ms. Allocated memory is still 281.0MB. Free memory was 139.5MB in the beginning and 135.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 512 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 463 mSDsluCounter, 291 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 200 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1116 IncrementalHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 91 mSDtfsCounter, 1116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=658occurred in iteration=10, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 19:03:35,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE