./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.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 a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:22:24,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:22:24,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:22:24,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:22:24,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:22:24,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:22:24,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:22:24,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:22:24,322 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:22:24,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:22:24,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:22:24,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:22:24,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:22:24,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:22:24,324 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:22:24,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:22:24,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:22:24,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:22:24,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:22:24,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:22:24,326 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:22:24,333 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:22:24,333 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:22:24,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:22:24,334 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:22:24,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:22:24,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:22:24,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:22:24,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:22:24,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:22:24,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:22:24,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:22:24,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:22:24,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:22:24,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:22:24,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:22:24,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:22:24,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:22:24,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:22:24,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:22:24,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:22:24,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:22:24,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e [2024-11-20 17:22:24,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:22:24,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:22:24,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:22:24,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:22:24,593 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:22:24,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:22:25,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:22:26,127 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:22:26,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:22:26,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f08dbf16/5864641dbd484c10bb84e1a2f6fe2295/FLAG884e636aa [2024-11-20 17:22:26,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f08dbf16/5864641dbd484c10bb84e1a2f6fe2295 [2024-11-20 17:22:26,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:22:26,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:22:26,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:22:26,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:22:26,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:22:26,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3828c866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26, skipping insertion in model container [2024-11-20 17:22:26,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,202 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:22:26,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:22:26,546 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:22:26,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:22:26,639 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:22:26,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26 WrapperNode [2024-11-20 17:22:26,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:22:26,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:22:26,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:22:26,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:22:26,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,703 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 130 [2024-11-20 17:22:26,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:22:26,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:22:26,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:22:26,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:22:26,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,732 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]. [2024-11-20 17:22:26,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:22:26,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:22:26,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:22:26,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:22:26,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (1/1) ... [2024-11-20 17:22:26,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:22:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:22:26,797 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) [2024-11-20 17:22:26,799 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 [2024-11-20 17:22:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:22:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:22:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:22:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:22:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:22:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:22:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-20 17:22:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-20 17:22:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-20 17:22:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-20 17:22:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:22:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:22:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:22:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:22:26,835 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:22:26,950 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:22:26,952 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:22:27,223 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:22:27,223 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:22:27,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:22:27,356 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:22:27,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:22:27 BoogieIcfgContainer [2024-11-20 17:22:27,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:22:27,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:22:27,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:22:27,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:22:27,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:22:26" (1/3) ... [2024-11-20 17:22:27,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea8fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:22:27, skipping insertion in model container [2024-11-20 17:22:27,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:22:26" (2/3) ... [2024-11-20 17:22:27,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea8fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:22:27, skipping insertion in model container [2024-11-20 17:22:27,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:22:27" (3/3) ... [2024-11-20 17:22:27,363 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:22:27,376 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:22:27,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:22:27,377 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:22:27,428 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:22:27,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-20 17:22:27,483 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-20 17:22:27,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:22:27,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-11-20 17:22:27,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-20 17:22:27,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-20 17:22:27,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:22:27,507 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;@15f94190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:22:27,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 17:22:27,531 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:22:27,534 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:22:27,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:22:27,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:27,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:22:27,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:27,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:27,540 INFO L85 PathProgramCache]: Analyzing trace with hash 12739548, now seen corresponding path program 1 times [2024-11-20 17:22:27,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:27,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992279083] [2024-11-20 17:22:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:27,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:27,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:27,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992279083] [2024-11-20 17:22:27,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992279083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:27,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:27,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:22:27,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227762522] [2024-11-20 17:22:27,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:27,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:22:27,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:27,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:22:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:22:27,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-11-20 17:22:27,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:27,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:27,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-11-20 17:22:27,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:22:28,719 INFO L124 PetriNetUnfolderBase]: 3311/5438 cut-off events. [2024-11-20 17:22:28,720 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 17:22:28,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10118 conditions, 5438 events. 3311/5438 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 38867 event pairs, 593 based on Foata normal form. 288/5671 useless extension candidates. Maximal degree in co-relation 10106. Up to 3661 conditions per place. [2024-11-20 17:22:28,753 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 41 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2024-11-20 17:22:28,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 243 flow [2024-11-20 17:22:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:22:28,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:22:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-11-20 17:22:28,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2024-11-20 17:22:28,764 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 125 transitions. [2024-11-20 17:22:28,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 243 flow [2024-11-20 17:22:28,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:22:28,769 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-20 17:22:28,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-11-20 17:22:28,772 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-20 17:22:28,773 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-20 17:22:28,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:28,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:28,773 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:22:28,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:22:28,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:28,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:28,774 INFO L85 PathProgramCache]: Analyzing trace with hash -536933807, now seen corresponding path program 1 times [2024-11-20 17:22:28,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:28,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506686908] [2024-11-20 17:22:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:28,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:28,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506686908] [2024-11-20 17:22:28,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506686908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:28,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:28,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:22:28,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245564271] [2024-11-20 17:22:28,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:28,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:22:28,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:28,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:22:28,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:22:28,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-11-20 17:22:28,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:28,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:28,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-11-20 17:22:28,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:22:29,408 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-11-20 17:22:29,409 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-20 17:22:29,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9315 conditions, 4911 events. 2903/4911 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 34743 event pairs, 2903 based on Foata normal form. 144/4885 useless extension candidates. Maximal degree in co-relation 9305. Up to 4016 conditions per place. [2024-11-20 17:22:29,437 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 22 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-20 17:22:29,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 148 flow [2024-11-20 17:22:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:22:29,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:22:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-20 17:22:29,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2024-11-20 17:22:29,441 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2024-11-20 17:22:29,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 148 flow [2024-11-20 17:22:29,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:22:29,442 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-20 17:22:29,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-20 17:22:29,443 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-20 17:22:29,444 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-20 17:22:29,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:29,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:29,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:22:29,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:22:29,446 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:29,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:29,447 INFO L85 PathProgramCache]: Analyzing trace with hash -536932523, now seen corresponding path program 1 times [2024-11-20 17:22:29,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:29,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001250583] [2024-11-20 17:22:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:29,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:29,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:29,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001250583] [2024-11-20 17:22:29,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001250583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:29,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:29,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:22:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284790355] [2024-11-20 17:22:29,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:29,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:22:29,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:29,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:22:29,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:22:29,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-20 17:22:29,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-11-20 17:22:29,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:29,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-20 17:22:29,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:22:35,240 INFO L124 PetriNetUnfolderBase]: 46586/66058 cut-off events. [2024-11-20 17:22:35,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:22:35,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128533 conditions, 66058 events. 46586/66058 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2669. Compared 474512 event pairs, 11372 based on Foata normal form. 0/64580 useless extension candidates. Maximal degree in co-relation 128527. Up to 20650 conditions per place. [2024-11-20 17:22:35,571 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 48 selfloop transitions, 9 changer transitions 109/177 dead transitions. [2024-11-20 17:22:35,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 177 transitions, 700 flow [2024-11-20 17:22:35,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:22:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:22:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 312 transitions. [2024-11-20 17:22:35,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2024-11-20 17:22:35,576 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 312 transitions. [2024-11-20 17:22:35,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 177 transitions, 700 flow [2024-11-20 17:22:35,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 177 transitions, 699 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:22:35,583 INFO L231 Difference]: Finished difference. Result has 69 places, 50 transitions, 219 flow [2024-11-20 17:22:35,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=219, PETRI_PLACES=69, PETRI_TRANSITIONS=50} [2024-11-20 17:22:35,584 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-11-20 17:22:35,585 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 50 transitions, 219 flow [2024-11-20 17:22:35,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-11-20 17:22:35,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:35,585 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:22:35,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:22:35,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:35,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:35,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1257908200, now seen corresponding path program 1 times [2024-11-20 17:22:35,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:35,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174767081] [2024-11-20 17:22:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:35,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:35,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:35,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174767081] [2024-11-20 17:22:35,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174767081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:35,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:35,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:22:35,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7051176] [2024-11-20 17:22:35,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:35,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:22:35,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:35,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:22:35,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:22:35,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-20 17:22:35,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 50 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-11-20 17:22:35,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:35,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-20 17:22:35,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:22:40,772 INFO L124 PetriNetUnfolderBase]: 35934/52313 cut-off events. [2024-11-20 17:22:40,773 INFO L125 PetriNetUnfolderBase]: For 81329/81346 co-relation queries the response was YES. [2024-11-20 17:22:40,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160348 conditions, 52313 events. 35934/52313 cut-off events. For 81329/81346 co-relation queries the response was YES. Maximal size of possible extension queue 2190. Compared 383498 event pairs, 2387 based on Foata normal form. 1329/53538 useless extension candidates. Maximal degree in co-relation 160333. Up to 19478 conditions per place. [2024-11-20 17:22:41,138 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 64 selfloop transitions, 13 changer transitions 106/194 dead transitions. [2024-11-20 17:22:41,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 194 transitions, 1307 flow [2024-11-20 17:22:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:22:41,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:22:41,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 328 transitions. [2024-11-20 17:22:41,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6074074074074074 [2024-11-20 17:22:41,140 INFO L175 Difference]: Start difference. First operand has 69 places, 50 transitions, 219 flow. Second operand 10 states and 328 transitions. [2024-11-20 17:22:41,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 194 transitions, 1307 flow [2024-11-20 17:22:41,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 194 transitions, 1137 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-11-20 17:22:41,663 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 327 flow [2024-11-20 17:22:41,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=327, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2024-11-20 17:22:41,664 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 15 predicate places. [2024-11-20 17:22:41,665 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 327 flow [2024-11-20 17:22:41,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-11-20 17:22:41,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:41,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:22:41,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:22:41,666 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:41,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:41,666 INFO L85 PathProgramCache]: Analyzing trace with hash -784773004, now seen corresponding path program 1 times [2024-11-20 17:22:41,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:41,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195639592] [2024-11-20 17:22:41,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:41,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:41,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:41,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195639592] [2024-11-20 17:22:41,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195639592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:41,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:41,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:22:41,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099093802] [2024-11-20 17:22:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:41,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:22:41,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:41,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:22:41,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:22:41,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-20 17:22:41,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 58 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-11-20 17:22:41,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:41,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-20 17:22:41,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:22:46,726 INFO L124 PetriNetUnfolderBase]: 33752/48899 cut-off events. [2024-11-20 17:22:46,726 INFO L125 PetriNetUnfolderBase]: For 137630/137687 co-relation queries the response was YES. [2024-11-20 17:22:47,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164642 conditions, 48899 events. 33752/48899 cut-off events. For 137630/137687 co-relation queries the response was YES. Maximal size of possible extension queue 2019. Compared 349926 event pairs, 3948 based on Foata normal form. 1154/50000 useless extension candidates. Maximal degree in co-relation 164620. Up to 18397 conditions per place. [2024-11-20 17:22:47,277 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 72 selfloop transitions, 21 changer transitions 100/204 dead transitions. [2024-11-20 17:22:47,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 204 transitions, 1497 flow [2024-11-20 17:22:47,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:22:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:22:47,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-11-20 17:22:47,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2024-11-20 17:22:47,279 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 327 flow. Second operand 10 states and 327 transitions. [2024-11-20 17:22:47,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 204 transitions, 1497 flow [2024-11-20 17:22:47,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 204 transitions, 1469 flow, removed 14 selfloop flow, removed 0 redundant places. [2024-11-20 17:22:47,536 INFO L231 Difference]: Finished difference. Result has 88 places, 71 transitions, 571 flow [2024-11-20 17:22:47,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=571, PETRI_PLACES=88, PETRI_TRANSITIONS=71} [2024-11-20 17:22:47,537 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-11-20 17:22:47,537 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 71 transitions, 571 flow [2024-11-20 17:22:47,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-11-20 17:22:47,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:47,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:22:47,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:22:47,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:47,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:47,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1946558099, now seen corresponding path program 1 times [2024-11-20 17:22:47,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:47,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568603306] [2024-11-20 17:22:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:47,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:47,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:47,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568603306] [2024-11-20 17:22:47,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568603306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:47,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:47,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:22:47,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680381227] [2024-11-20 17:22:47,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:47,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:22:47,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:47,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:22:47,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:22:47,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-11-20 17:22:47,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 71 transitions, 571 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:47,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:47,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-11-20 17:22:47,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:22:52,071 INFO L124 PetriNetUnfolderBase]: 23684/38154 cut-off events. [2024-11-20 17:22:52,072 INFO L125 PetriNetUnfolderBase]: For 150092/153036 co-relation queries the response was YES. [2024-11-20 17:22:52,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128163 conditions, 38154 events. 23684/38154 cut-off events. For 150092/153036 co-relation queries the response was YES. Maximal size of possible extension queue 1894. Compared 323875 event pairs, 10288 based on Foata normal form. 2318/39248 useless extension candidates. Maximal degree in co-relation 128130. Up to 24519 conditions per place. [2024-11-20 17:22:52,528 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 51 selfloop transitions, 8 changer transitions 55/149 dead transitions. [2024-11-20 17:22:52,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 149 transitions, 1265 flow [2024-11-20 17:22:52,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:22:52,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:22:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 235 transitions. [2024-11-20 17:22:52,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6216931216931217 [2024-11-20 17:22:52,530 INFO L175 Difference]: Start difference. First operand has 88 places, 71 transitions, 571 flow. Second operand 7 states and 235 transitions. [2024-11-20 17:22:52,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 149 transitions, 1265 flow [2024-11-20 17:22:53,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 149 transitions, 1209 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-11-20 17:22:53,274 INFO L231 Difference]: Finished difference. Result has 89 places, 78 transitions, 667 flow [2024-11-20 17:22:53,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=667, PETRI_PLACES=89, PETRI_TRANSITIONS=78} [2024-11-20 17:22:53,275 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 28 predicate places. [2024-11-20 17:22:53,275 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 78 transitions, 667 flow [2024-11-20 17:22:53,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:53,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:53,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:22:53,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:22:53,275 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:53,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:53,276 INFO L85 PathProgramCache]: Analyzing trace with hash -553275645, now seen corresponding path program 1 times [2024-11-20 17:22:53,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:53,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680014558] [2024-11-20 17:22:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:53,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:53,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680014558] [2024-11-20 17:22:53,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680014558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:53,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:53,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:22:53,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859411256] [2024-11-20 17:22:53,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:53,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:22:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:53,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:22:53,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:22:53,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-20 17:22:53,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 78 transitions, 667 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:53,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:53,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-20 17:22:53,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:22:58,623 INFO L124 PetriNetUnfolderBase]: 30052/43784 cut-off events. [2024-11-20 17:22:58,623 INFO L125 PetriNetUnfolderBase]: For 248532/248561 co-relation queries the response was YES. [2024-11-20 17:22:58,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174918 conditions, 43784 events. 30052/43784 cut-off events. For 248532/248561 co-relation queries the response was YES. Maximal size of possible extension queue 1756. Compared 312451 event pairs, 4552 based on Foata normal form. 1088/44820 useless extension candidates. Maximal degree in co-relation 174882. Up to 13716 conditions per place. [2024-11-20 17:22:59,037 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 94 selfloop transitions, 18 changer transitions 106/229 dead transitions. [2024-11-20 17:22:59,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 229 transitions, 2316 flow [2024-11-20 17:22:59,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:22:59,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:22:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2024-11-20 17:22:59,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5944444444444444 [2024-11-20 17:22:59,038 INFO L175 Difference]: Start difference. First operand has 89 places, 78 transitions, 667 flow. Second operand 10 states and 321 transitions. [2024-11-20 17:22:59,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 229 transitions, 2316 flow [2024-11-20 17:22:59,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 229 transitions, 2243 flow, removed 30 selfloop flow, removed 7 redundant places. [2024-11-20 17:22:59,295 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 917 flow [2024-11-20 17:22:59,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=917, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-11-20 17:22:59,296 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 35 predicate places. [2024-11-20 17:22:59,296 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 917 flow [2024-11-20 17:22:59,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:22:59,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:22:59,296 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:22:59,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:22:59,297 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:22:59,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:22:59,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2028449161, now seen corresponding path program 1 times [2024-11-20 17:22:59,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:22:59,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133967484] [2024-11-20 17:22:59,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:22:59,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:22:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:22:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:22:59,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:22:59,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133967484] [2024-11-20 17:22:59,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133967484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:22:59,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:22:59,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:22:59,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644427097] [2024-11-20 17:22:59,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:22:59,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:22:59,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:22:59,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:22:59,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:22:59,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-11-20 17:22:59,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 917 flow. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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) [2024-11-20 17:22:59,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:22:59,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-11-20 17:22:59,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand