./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe014_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 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:11:04,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:11:04,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:11:04,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:11:04,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:11:04,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:11:04,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:11:04,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:11:04,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:11:04,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:11:04,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:11:04,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:11:04,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:11:04,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:11:04,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:11:04,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:11:04,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:11:04,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:11:04,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:11:04,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:11:04,341 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:11:04,344 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:11:04,345 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:11:04,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:11:04,345 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:11:04,345 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:11:04,345 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:11:04,345 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:11:04,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:11:04,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:11:04,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:11:04,346 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:11:04,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:11:04,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:11:04,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:11:04,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:11:04,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:11:04,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:11:04,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:11:04,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:11:04,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:11:04,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:11:04,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 [2024-11-12 16:11:04,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:11:04,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:11:04,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:11:04,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:11:04,580 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:11:04,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-12 16:11:05,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:11:06,008 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:11:06,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-12 16:11:06,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082d67ff8/0c1a9ac4e9fa4ddf9c015dfb61e6c121/FLAG56f868b37 [2024-11-12 16:11:06,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082d67ff8/0c1a9ac4e9fa4ddf9c015dfb61e6c121 [2024-11-12 16:11:06,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:11:06,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:11:06,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:11:06,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:11:06,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:11:06,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb994b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06, skipping insertion in model container [2024-11-12 16:11:06,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,424 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:11:06,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:11:06,692 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:11:06,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:11:06,759 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:11:06,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06 WrapperNode [2024-11-12 16:11:06,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:11:06,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:11:06,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:11:06,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:11:06,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,791 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-12 16:11:06,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:11:06,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:11:06,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:11:06,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:11:06,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,801 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,813 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:11:06,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:11:06,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:11:06,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:11:06,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:11:06,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (1/1) ... [2024-11-12 16:11:06,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:11:06,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:11:06,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:11:06,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:11:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:11:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 16:11:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:11:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:11:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:11:06,912 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:11:07,065 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:11:07,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:11:07,215 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:11:07,215 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:11:07,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:11:07,288 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:11:07,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:11:07 BoogieIcfgContainer [2024-11-12 16:11:07,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:11:07,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:11:07,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:11:07,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:11:07,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:11:06" (1/3) ... [2024-11-12 16:11:07,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbb0c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:11:07, skipping insertion in model container [2024-11-12 16:11:07,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:06" (2/3) ... [2024-11-12 16:11:07,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbb0c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:11:07, skipping insertion in model container [2024-11-12 16:11:07,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:11:07" (3/3) ... [2024-11-12 16:11:07,300 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-12 16:11:07,315 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:11:07,316 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 16:11:07,316 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:11:07,358 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:11:07,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-11-12 16:11:07,416 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-12 16:11:07,416 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:07,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-12 16:11:07,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-11-12 16:11:07,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-11-12 16:11:07,428 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:11:07,433 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;@2167faea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:11:07,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-12 16:11:07,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:11:07,447 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-12 16:11:07,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:07,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:07,448 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:07,449 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)] === [2024-11-12 16:11:07,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:07,457 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-11-12 16:11:07,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:07,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054936201] [2024-11-12 16:11:07,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:07,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:07,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:07,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054936201] [2024-11-12 16:11:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054936201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:07,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:11:07,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487377485] [2024-11-12 16:11:07,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:07,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:11:07,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:07,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:11:07,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:11:07,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-11-12 16:11:07,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:07,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:07,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-11-12 16:11:07,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:07,779 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-11-12 16:11:07,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:07,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-11-12 16:11:07,782 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-12 16:11:07,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-11-12 16:11:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:11:07,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:11:07,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-12 16:11:07,792 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-12 16:11:07,793 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-11-12 16:11:07,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-11-12 16:11:07,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 16:11:07,798 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-12 16:11:07,801 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-12 16:11:07,803 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-11-12 16:11:07,803 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-12 16:11:07,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:07,804 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:07,804 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:07,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:11:07,806 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)] === [2024-11-12 16:11:07,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-11-12 16:11:07,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:07,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112603082] [2024-11-12 16:11:07,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:07,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:08,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:08,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112603082] [2024-11-12 16:11:08,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112603082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:08,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:08,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:11:08,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829196079] [2024-11-12 16:11:08,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:08,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:11:08,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:08,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:11:08,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:11:08,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-12 16:11:08,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 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) [2024-11-12 16:11:08,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:08,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-12 16:11:08,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:08,486 INFO L124 PetriNetUnfolderBase]: 1429/2714 cut-off events. [2024-11-12 16:11:08,486 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:08,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4972 conditions, 2714 events. 1429/2714 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 20149 event pairs, 322 based on Foata normal form. 0/2578 useless extension candidates. Maximal degree in co-relation 4966. Up to 814 conditions per place. [2024-11-12 16:11:08,504 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 29 selfloop transitions, 6 changer transitions 55/104 dead transitions. [2024-11-12 16:11:08,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 400 flow [2024-11-12 16:11:08,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:11:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:11:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 254 transitions. [2024-11-12 16:11:08,508 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6563307493540051 [2024-11-12 16:11:08,508 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 254 transitions. [2024-11-12 16:11:08,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 104 transitions, 400 flow [2024-11-12 16:11:08,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 104 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:11:08,511 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2024-11-12 16:11:08,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-12 16:11:08,512 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-11-12 16:11:08,512 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2024-11-12 16:11:08,512 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) [2024-11-12 16:11:08,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:08,512 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:08,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:11:08,513 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)] === [2024-11-12 16:11:08,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:08,514 INFO L85 PathProgramCache]: Analyzing trace with hash 861097345, now seen corresponding path program 1 times [2024-11-12 16:11:08,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:08,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668088634] [2024-11-12 16:11:08,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:08,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:08,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:08,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:08,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668088634] [2024-11-12 16:11:08,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668088634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:08,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:08,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:11:08,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424735113] [2024-11-12 16:11:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:08,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:11:08,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:08,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:11:08,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:11:08,672 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-12 16:11:08,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 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) [2024-11-12 16:11:08,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:08,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-12 16:11:08,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:08,948 INFO L124 PetriNetUnfolderBase]: 948/1988 cut-off events. [2024-11-12 16:11:08,949 INFO L125 PetriNetUnfolderBase]: For 2985/2995 co-relation queries the response was YES. [2024-11-12 16:11:08,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5625 conditions, 1988 events. 948/1988 cut-off events. For 2985/2995 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 14411 event pairs, 172 based on Foata normal form. 65/2020 useless extension candidates. Maximal degree in co-relation 5610. Up to 572 conditions per place. [2024-11-12 16:11:08,958 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 36 selfloop transitions, 7 changer transitions 52/109 dead transitions. [2024-11-12 16:11:08,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 109 transitions, 759 flow [2024-11-12 16:11:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:11:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:11:08,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 265 transitions. [2024-11-12 16:11:08,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2024-11-12 16:11:08,963 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 265 transitions. [2024-11-12 16:11:08,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 109 transitions, 759 flow [2024-11-12 16:11:08,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 109 transitions, 657 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-11-12 16:11:08,974 INFO L231 Difference]: Finished difference. Result has 65 places, 42 transitions, 213 flow [2024-11-12 16:11:08,974 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=213, PETRI_PLACES=65, PETRI_TRANSITIONS=42} [2024-11-12 16:11:08,975 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-11-12 16:11:08,975 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 213 flow [2024-11-12 16:11:08,975 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) [2024-11-12 16:11:08,975 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:08,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:08,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:11:08,976 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)] === [2024-11-12 16:11:08,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:08,977 INFO L85 PathProgramCache]: Analyzing trace with hash -655789445, now seen corresponding path program 1 times [2024-11-12 16:11:08,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:08,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963282940] [2024-11-12 16:11:08,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:08,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:09,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963282940] [2024-11-12 16:11:09,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963282940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:09,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:09,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:11:09,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737418792] [2024-11-12 16:11:09,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:09,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:11:09,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:09,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:11:09,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:11:09,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-12 16:11:09,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 42 transitions, 213 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) [2024-11-12 16:11:09,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:09,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-12 16:11:09,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:09,345 INFO L124 PetriNetUnfolderBase]: 779/1600 cut-off events. [2024-11-12 16:11:09,346 INFO L125 PetriNetUnfolderBase]: For 4205/4211 co-relation queries the response was YES. [2024-11-12 16:11:09,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5029 conditions, 1600 events. 779/1600 cut-off events. For 4205/4211 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10902 event pairs, 153 based on Foata normal form. 46/1606 useless extension candidates. Maximal degree in co-relation 5007. Up to 560 conditions per place. [2024-11-12 16:11:09,356 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 38 selfloop transitions, 11 changer transitions 40/103 dead transitions. [2024-11-12 16:11:09,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 103 transitions, 731 flow [2024-11-12 16:11:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:11:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:11:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2024-11-12 16:11:09,357 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6093023255813953 [2024-11-12 16:11:09,357 INFO L175 Difference]: Start difference. First operand has 65 places, 42 transitions, 213 flow. Second operand 10 states and 262 transitions. [2024-11-12 16:11:09,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 103 transitions, 731 flow [2024-11-12 16:11:09,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 678 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-11-12 16:11:09,366 INFO L231 Difference]: Finished difference. Result has 74 places, 46 transitions, 297 flow [2024-11-12 16:11:09,366 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=297, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2024-11-12 16:11:09,367 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-11-12 16:11:09,368 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 297 flow [2024-11-12 16:11:09,369 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) [2024-11-12 16:11:09,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:09,369 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:09,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:11:09,369 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)] === [2024-11-12 16:11:09,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash 691510508, now seen corresponding path program 1 times [2024-11-12 16:11:09,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:09,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795551367] [2024-11-12 16:11:09,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:09,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:09,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:09,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795551367] [2024-11-12 16:11:09,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795551367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:09,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:09,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:11:09,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845909347] [2024-11-12 16:11:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:09,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:11:09,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:09,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:11:09,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:11:09,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-12 16:11:09,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:09,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:09,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-12 16:11:09,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:09,647 INFO L124 PetriNetUnfolderBase]: 506/1132 cut-off events. [2024-11-12 16:11:09,648 INFO L125 PetriNetUnfolderBase]: For 3159/3250 co-relation queries the response was YES. [2024-11-12 16:11:09,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3508 conditions, 1132 events. 506/1132 cut-off events. For 3159/3250 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7784 event pairs, 229 based on Foata normal form. 58/1119 useless extension candidates. Maximal degree in co-relation 3478. Up to 494 conditions per place. [2024-11-12 16:11:09,653 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 20 selfloop transitions, 6 changer transitions 17/69 dead transitions. [2024-11-12 16:11:09,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 69 transitions, 489 flow [2024-11-12 16:11:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:11:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:11:09,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2024-11-12 16:11:09,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6179401993355482 [2024-11-12 16:11:09,655 INFO L175 Difference]: Start difference. First operand has 74 places, 46 transitions, 297 flow. Second operand 7 states and 186 transitions. [2024-11-12 16:11:09,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 69 transitions, 489 flow [2024-11-12 16:11:09,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 69 transitions, 435 flow, removed 25 selfloop flow, removed 9 redundant places. [2024-11-12 16:11:09,661 INFO L231 Difference]: Finished difference. Result has 70 places, 46 transitions, 287 flow [2024-11-12 16:11:09,661 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=287, PETRI_PLACES=70, PETRI_TRANSITIONS=46} [2024-11-12 16:11:09,663 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-11-12 16:11:09,663 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 287 flow [2024-11-12 16:11:09,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:09,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:09,664 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:09,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:11:09,664 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)] === [2024-11-12 16:11:09,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1582307728, now seen corresponding path program 1 times [2024-11-12 16:11:09,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:09,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757656555] [2024-11-12 16:11:09,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:09,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:09,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:09,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757656555] [2024-11-12 16:11:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757656555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:09,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:09,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:11:09,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272013948] [2024-11-12 16:11:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:09,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:11:09,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:09,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:11:09,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:11:09,769 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2024-11-12 16:11:09,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 287 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) [2024-11-12 16:11:09,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:09,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2024-11-12 16:11:09,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:09,874 INFO L124 PetriNetUnfolderBase]: 323/795 cut-off events. [2024-11-12 16:11:09,874 INFO L125 PetriNetUnfolderBase]: For 1316/1368 co-relation queries the response was YES. [2024-11-12 16:11:09,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2324 conditions, 795 events. 323/795 cut-off events. For 1316/1368 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5189 event pairs, 129 based on Foata normal form. 24/760 useless extension candidates. Maximal degree in co-relation 2297. Up to 382 conditions per place. [2024-11-12 16:11:09,879 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 21 selfloop transitions, 5 changer transitions 15/69 dead transitions. [2024-11-12 16:11:09,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 451 flow [2024-11-12 16:11:09,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:11:09,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:11:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-11-12 16:11:09,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6445182724252492 [2024-11-12 16:11:09,881 INFO L175 Difference]: Start difference. First operand has 70 places, 46 transitions, 287 flow. Second operand 7 states and 194 transitions. [2024-11-12 16:11:09,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 451 flow [2024-11-12 16:11:09,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 415 flow, removed 12 selfloop flow, removed 10 redundant places. [2024-11-12 16:11:09,884 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 284 flow [2024-11-12 16:11:09,884 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2024-11-12 16:11:09,885 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-11-12 16:11:09,886 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 284 flow [2024-11-12 16:11:09,886 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) [2024-11-12 16:11:09,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:09,886 INFO L206 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] [2024-11-12 16:11:09,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:11:09,887 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)] === [2024-11-12 16:11:09,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:09,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1702122293, now seen corresponding path program 1 times [2024-11-12 16:11:09,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:09,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785010949] [2024-11-12 16:11:09,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:09,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:10,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:10,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785010949] [2024-11-12 16:11:10,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785010949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:10,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:10,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:11:10,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368993054] [2024-11-12 16:11:10,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:10,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:11:10,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:10,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:11:10,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:11:10,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-11-12 16:11:10,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 284 flow. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:10,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-11-12 16:11:10,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:10,241 INFO L124 PetriNetUnfolderBase]: 956/1943 cut-off events. [2024-11-12 16:11:10,241 INFO L125 PetriNetUnfolderBase]: For 4749/4769 co-relation queries the response was YES. [2024-11-12 16:11:10,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6051 conditions, 1943 events. 956/1943 cut-off events. For 4749/4769 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 13599 event pairs, 238 based on Foata normal form. 34/1962 useless extension candidates. Maximal degree in co-relation 6026. Up to 479 conditions per place. [2024-11-12 16:11:10,249 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 41 selfloop transitions, 8 changer transitions 36/98 dead transitions. [2024-11-12 16:11:10,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 98 transitions, 772 flow [2024-11-12 16:11:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:11:10,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:11:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 221 transitions. [2024-11-12 16:11:10,251 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5710594315245479 [2024-11-12 16:11:10,251 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 284 flow. Second operand 9 states and 221 transitions. [2024-11-12 16:11:10,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 98 transitions, 772 flow [2024-11-12 16:11:10,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 722 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-12 16:11:10,259 INFO L231 Difference]: Finished difference. Result has 73 places, 43 transitions, 287 flow [2024-11-12 16:11:10,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=287, PETRI_PLACES=73, PETRI_TRANSITIONS=43} [2024-11-12 16:11:10,260 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2024-11-12 16:11:10,260 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 43 transitions, 287 flow [2024-11-12 16:11:10,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,261 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:10,261 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:10,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:11:10,261 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)] === [2024-11-12 16:11:10,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:10,262 INFO L85 PathProgramCache]: Analyzing trace with hash -648845063, now seen corresponding path program 1 times [2024-11-12 16:11:10,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:10,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767599604] [2024-11-12 16:11:10,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:10,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:10,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:10,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767599604] [2024-11-12 16:11:10,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767599604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:10,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:10,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:11:10,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711858940] [2024-11-12 16:11:10,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:10,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:11:10,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:10,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:11:10,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:11:10,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-12 16:11:10,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 43 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:10,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-12 16:11:10,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:10,440 INFO L124 PetriNetUnfolderBase]: 653/1282 cut-off events. [2024-11-12 16:11:10,440 INFO L125 PetriNetUnfolderBase]: For 1223/1257 co-relation queries the response was YES. [2024-11-12 16:11:10,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2979 conditions, 1282 events. 653/1282 cut-off events. For 1223/1257 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8104 event pairs, 140 based on Foata normal form. 55/1288 useless extension candidates. Maximal degree in co-relation 2950. Up to 645 conditions per place. [2024-11-12 16:11:10,446 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 25 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-11-12 16:11:10,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 56 transitions, 375 flow [2024-11-12 16:11:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:11:10,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:11:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-12 16:11:10,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-11-12 16:11:10,447 INFO L175 Difference]: Start difference. First operand has 73 places, 43 transitions, 287 flow. Second operand 4 states and 116 transitions. [2024-11-12 16:11:10,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 56 transitions, 375 flow [2024-11-12 16:11:10,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 327 flow, removed 13 selfloop flow, removed 11 redundant places. [2024-11-12 16:11:10,452 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 277 flow [2024-11-12 16:11:10,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2024-11-12 16:11:10,453 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2024-11-12 16:11:10,453 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 277 flow [2024-11-12 16:11:10,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:10,456 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:10,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 16:11:10,456 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)] === [2024-11-12 16:11:10,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:10,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1889347666, now seen corresponding path program 1 times [2024-11-12 16:11:10,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:10,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345867176] [2024-11-12 16:11:10,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:10,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:10,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:10,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345867176] [2024-11-12 16:11:10,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345867176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:10,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:10,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:11:10,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683662395] [2024-11-12 16:11:10,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:10,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:11:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:11:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:11:10,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-12 16:11:10,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 277 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:10,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-12 16:11:10,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:10,646 INFO L124 PetriNetUnfolderBase]: 560/1103 cut-off events. [2024-11-12 16:11:10,646 INFO L125 PetriNetUnfolderBase]: For 693/899 co-relation queries the response was YES. [2024-11-12 16:11:10,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2792 conditions, 1103 events. 560/1103 cut-off events. For 693/899 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6405 event pairs, 55 based on Foata normal form. 62/1122 useless extension candidates. Maximal degree in co-relation 2770. Up to 424 conditions per place. [2024-11-12 16:11:10,651 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2024-11-12 16:11:10,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 404 flow [2024-11-12 16:11:10,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:11:10,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:11:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2024-11-12 16:11:10,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-11-12 16:11:10,652 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 277 flow. Second operand 5 states and 145 transitions. [2024-11-12 16:11:10,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 404 flow [2024-11-12 16:11:10,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:11:10,654 INFO L231 Difference]: Finished difference. Result has 68 places, 51 transitions, 329 flow [2024-11-12 16:11:10,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=329, PETRI_PLACES=68, PETRI_TRANSITIONS=51} [2024-11-12 16:11:10,655 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 21 predicate places. [2024-11-12 16:11:10,655 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 51 transitions, 329 flow [2024-11-12 16:11:10,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:10,656 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:10,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 16:11:10,656 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)] === [2024-11-12 16:11:10,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:10,657 INFO L85 PathProgramCache]: Analyzing trace with hash 72488429, now seen corresponding path program 1 times [2024-11-12 16:11:10,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:10,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538643791] [2024-11-12 16:11:10,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:10,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:10,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538643791] [2024-11-12 16:11:10,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538643791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:10,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:10,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:11:10,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548382478] [2024-11-12 16:11:10,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:10,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:11:10,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:11:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:11:10,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-12 16:11:10,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 51 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:10,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-12 16:11:10,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:10,838 INFO L124 PetriNetUnfolderBase]: 424/807 cut-off events. [2024-11-12 16:11:10,839 INFO L125 PetriNetUnfolderBase]: For 1283/1783 co-relation queries the response was YES. [2024-11-12 16:11:10,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 807 events. 424/807 cut-off events. For 1283/1783 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4195 event pairs, 19 based on Foata normal form. 56/824 useless extension candidates. Maximal degree in co-relation 2485. Up to 264 conditions per place. [2024-11-12 16:11:10,841 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 11 changer transitions 5/66 dead transitions. [2024-11-12 16:11:10,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 66 transitions, 446 flow [2024-11-12 16:11:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:11:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:11:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 168 transitions. [2024-11-12 16:11:10,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6511627906976745 [2024-11-12 16:11:10,843 INFO L175 Difference]: Start difference. First operand has 68 places, 51 transitions, 329 flow. Second operand 6 states and 168 transitions. [2024-11-12 16:11:10,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 66 transitions, 446 flow [2024-11-12 16:11:10,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 413 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-12 16:11:10,847 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 318 flow [2024-11-12 16:11:10,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-11-12 16:11:10,848 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-11-12 16:11:10,848 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 318 flow [2024-11-12 16:11:10,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:10,848 INFO L206 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] [2024-11-12 16:11:10,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 16:11:10,849 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)] === [2024-11-12 16:11:10,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2011837552, now seen corresponding path program 1 times [2024-11-12 16:11:10,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:10,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297486736] [2024-11-12 16:11:10,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:10,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:10,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:10,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:10,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297486736] [2024-11-12 16:11:10,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297486736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:10,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:10,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:11:10,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143043384] [2024-11-12 16:11:10,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:10,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:11:10,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:10,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:11:10,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:11:10,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-12 16:11:10,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 318 flow. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:10,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:10,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-12 16:11:10,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:11,105 INFO L124 PetriNetUnfolderBase]: 626/1373 cut-off events. [2024-11-12 16:11:11,105 INFO L125 PetriNetUnfolderBase]: For 3544/3714 co-relation queries the response was YES. [2024-11-12 16:11:11,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4454 conditions, 1373 events. 626/1373 cut-off events. For 3544/3714 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 9504 event pairs, 275 based on Foata normal form. 24/1255 useless extension candidates. Maximal degree in co-relation 4430. Up to 417 conditions per place. [2024-11-12 16:11:11,128 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 21 selfloop transitions, 5 changer transitions 30/77 dead transitions. [2024-11-12 16:11:11,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 77 transitions, 550 flow [2024-11-12 16:11:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:11:11,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:11:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2024-11-12 16:11:11,129 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.584717607973422 [2024-11-12 16:11:11,129 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 318 flow. Second operand 7 states and 176 transitions. [2024-11-12 16:11:11,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 77 transitions, 550 flow [2024-11-12 16:11:11,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 77 transitions, 479 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-11-12 16:11:11,138 INFO L231 Difference]: Finished difference. Result has 71 places, 40 transitions, 205 flow [2024-11-12 16:11:11,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=205, PETRI_PLACES=71, PETRI_TRANSITIONS=40} [2024-11-12 16:11:11,139 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 24 predicate places. [2024-11-12 16:11:11,139 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 40 transitions, 205 flow [2024-11-12 16:11:11,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:11,139 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:11,139 INFO L206 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] [2024-11-12 16:11:11,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 16:11:11,140 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)] === [2024-11-12 16:11:11,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:11,141 INFO L85 PathProgramCache]: Analyzing trace with hash -578159784, now seen corresponding path program 2 times [2024-11-12 16:11:11,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:11,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852011535] [2024-11-12 16:11:11,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:11,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:11,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852011535] [2024-11-12 16:11:11,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852011535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:11,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:11,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 16:11:11,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701375664] [2024-11-12 16:11:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:11,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:11:11,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:11,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:11:11,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:11:11,244 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-12 16:11:11,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 40 transitions, 205 flow. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:11,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:11,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-12 16:11:11,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:11,318 INFO L124 PetriNetUnfolderBase]: 121/281 cut-off events. [2024-11-12 16:11:11,318 INFO L125 PetriNetUnfolderBase]: For 419/424 co-relation queries the response was YES. [2024-11-12 16:11:11,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 281 events. 121/281 cut-off events. For 419/424 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1139 event pairs, 14 based on Foata normal form. 9/270 useless extension candidates. Maximal degree in co-relation 783. Up to 103 conditions per place. [2024-11-12 16:11:11,319 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-11-12 16:11:11,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 50 transitions, 287 flow [2024-11-12 16:11:11,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 16:11:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 16:11:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-11-12 16:11:11,320 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2024-11-12 16:11:11,320 INFO L175 Difference]: Start difference. First operand has 71 places, 40 transitions, 205 flow. Second operand 8 states and 176 transitions. [2024-11-12 16:11:11,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 50 transitions, 287 flow [2024-11-12 16:11:11,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 216 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-11-12 16:11:11,322 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-11-12 16:11:11,322 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-11-12 16:11:11,322 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-11-12 16:11:11,322 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-11-12 16:11:11,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:11,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-12 16:11:11,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-12 16:11:11,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-12 16:11:11,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-12 16:11:11,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-12 16:11:11,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 16:11:11,326 INFO L421 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:11,331 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:11:11,331 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:11:11,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:11:11 BasicIcfg [2024-11-12 16:11:11,336 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:11:11,337 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:11:11,337 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:11:11,337 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:11:11,337 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:11:07" (3/4) ... [2024-11-12 16:11:11,339 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:11:11,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-12 16:11:11,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-12 16:11:11,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-12 16:11:11,346 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-12 16:11:11,346 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-12 16:11:11,346 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 16:11:11,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 16:11:11,420 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:11:11,421 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:11:11,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:11:11,421 INFO L158 Benchmark]: Toolchain (without parser) took 5039.87ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 110.0MB in the beginning and 119.6MB in the end (delta: -9.6MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2024-11-12 16:11:11,422 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:11:11,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.73ms. Allocated memory is still 163.6MB. Free memory was 110.0MB in the beginning and 131.3MB in the end (delta: -21.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-12 16:11:11,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.80ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 129.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:11:11,422 INFO L158 Benchmark]: Boogie Preprocessor took 33.56ms. Allocated memory is still 163.6MB. Free memory was 129.2MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:11:11,422 INFO L158 Benchmark]: RCFGBuilder took 463.48ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 116.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 16:11:11,423 INFO L158 Benchmark]: TraceAbstraction took 4045.75ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 115.3MB in the beginning and 124.8MB in the end (delta: -9.5MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-12 16:11:11,423 INFO L158 Benchmark]: Witness Printer took 84.22ms. Allocated memory is still 237.0MB. Free memory was 124.8MB in the beginning and 119.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:11:11,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.73ms. Allocated memory is still 163.6MB. Free memory was 110.0MB in the beginning and 131.3MB in the end (delta: -21.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.80ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 129.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.56ms. Allocated memory is still 163.6MB. Free memory was 129.2MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.48ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 116.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4045.75ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 115.3MB in the beginning and 124.8MB in the end (delta: -9.5MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Witness Printer took 84.22ms. Allocated memory is still 237.0MB. Free memory was 124.8MB in the beginning and 119.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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, 66 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: 3.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 452 mSDsluCounter, 241 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1059 IncrementalHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 72 mSDtfsCounter, 1059 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=9, InterpolantAutomatonStates: 85, 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, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 1208 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! [2024-11-12 16:11:11,449 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