./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/mix014_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d 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/mix014_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 a75df8feda97f2ebeb5cc4266066f8deba1b6726a771b6143f22a640cfcf63d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:14:13,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:14:13,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:14:13,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:14:13,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:14:13,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:14:13,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:14:13,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:14:13,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:14:13,627 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:14:13,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:14:13,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:14:13,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:14:13,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:14:13,629 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:14:13,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:14:13,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:14:13,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:14:13,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:14:13,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:14:13,631 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:14:13,635 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:14:13,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:14:13,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:14:13,636 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:14:13,636 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:14:13,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:14:13,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:14:13,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:14:13,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:14:13,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:14:13,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:14:13,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:14:13,637 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:14:13,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:14:13,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a75df8feda97f2ebeb5cc4266066f8deba1b6726a771b6143f22a640cfcf63d2 [2024-10-13 12:14:13,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:14:13,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:14:13,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:14:13,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:14:13,897 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:14:13,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:14:15,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:14:15,628 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:14:15,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:14:15,647 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80c2f447f/a847eaa38e3f44dda465b156c7f1d6f2/FLAG272263d07 [2024-10-13 12:14:15,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80c2f447f/a847eaa38e3f44dda465b156c7f1d6f2 [2024-10-13 12:14:15,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:14:15,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:14:15,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:14:15,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:14:15,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:14:15,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:15" (1/1) ... [2024-10-13 12:14:15,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d1cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:15, skipping insertion in model container [2024-10-13 12:14:15,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:15" (1/1) ... [2024-10-13 12:14:15,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:14:16,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:14:16,146 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:14:16,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:14:16,238 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:14:16,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16 WrapperNode [2024-10-13 12:14:16,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:14:16,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:14:16,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:14:16,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:14:16,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,296 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-10-13 12:14:16,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:14:16,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:14:16,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:14:16,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:14:16,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,332 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 12:14:16,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:14:16,354 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:14:16,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:14:16,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:14:16,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (1/1) ... [2024-10-13 12:14:16,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:14:16,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:14:16,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:14:16,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:14:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:14:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:14:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 12:14:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 12:14:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 12:14:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 12:14:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 12:14:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 12:14:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-13 12:14:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-13 12:14:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:14:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:14:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:14:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:14:16,467 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:14:16,661 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:14:16,664 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:14:17,037 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:14:17,039 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:14:17,229 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:14:17,229 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:14:17,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:17 BoogieIcfgContainer [2024-10-13 12:14:17,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:14:17,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:14:17,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:14:17,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:14:17,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:14:15" (1/3) ... [2024-10-13 12:14:17,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1824422e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:14:17, skipping insertion in model container [2024-10-13 12:14:17,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:16" (2/3) ... [2024-10-13 12:14:17,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1824422e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:14:17, skipping insertion in model container [2024-10-13 12:14:17,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:17" (3/3) ... [2024-10-13 12:14:17,242 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:14:17,255 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:14:17,255 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 12:14:17,255 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:14:17,311 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:14:17,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-13 12:14:17,375 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-13 12:14:17,377 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:14:17,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-13 12:14:17,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-13 12:14:17,385 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-13 12:14:17,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:14:17,408 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;@5e033b16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:14:17,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 12:14:17,413 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:14:17,413 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-13 12:14:17,413 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:14:17,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:17,414 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 12:14:17,415 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:17,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:17,420 INFO L85 PathProgramCache]: Analyzing trace with hash 13010806, now seen corresponding path program 1 times [2024-10-13 12:14:17,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:17,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048709180] [2024-10-13 12:14:17,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:17,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:17,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:17,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048709180] [2024-10-13 12:14:17,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048709180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:17,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:17,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:14:17,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830571280] [2024-10-13 12:14:17,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:17,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:14:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:17,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:14:17,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:14:17,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-13 12:14:17,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:17,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:17,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-13 12:14:17,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:18,909 INFO L124 PetriNetUnfolderBase]: 3311/5198 cut-off events. [2024-10-13 12:14:18,909 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 12:14:18,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 5198 events. 3311/5198 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 33882 event pairs, 2177 based on Foata normal form. 288/5441 useless extension candidates. Maximal degree in co-relation 9866. Up to 3661 conditions per place. [2024-10-13 12:14:18,957 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-10-13 12:14:18,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-10-13 12:14:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:14:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:14:18,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-13 12:14:18,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-10-13 12:14:18,971 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-10-13 12:14:18,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-10-13 12:14:18,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:14:18,979 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-13 12:14:18,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-13 12:14:18,987 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-13 12:14:18,988 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-13 12:14:18,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:18,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:18,989 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:18,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:14:18,989 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:18,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1708974511, now seen corresponding path program 1 times [2024-10-13 12:14:18,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:18,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146081498] [2024-10-13 12:14:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:18,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:19,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:19,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:19,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146081498] [2024-10-13 12:14:19,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146081498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:19,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:19,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:14:19,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399377920] [2024-10-13 12:14:19,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:19,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:14:19,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:19,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:14:19,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:14:19,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-13 12:14:19,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:19,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:19,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-13 12:14:19,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:19,961 INFO L124 PetriNetUnfolderBase]: 2903/4915 cut-off events. [2024-10-13 12:14:19,961 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-13 12:14:19,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9319 conditions, 4915 events. 2903/4915 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 35282 event pairs, 2903 based on Foata normal form. 144/4897 useless extension candidates. Maximal degree in co-relation 9309. Up to 4016 conditions per place. [2024-10-13 12:14:19,991 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-13 12:14:19,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-10-13 12:14:19,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:14:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:14:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-13 12:14:19,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-13 12:14:19,995 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-10-13 12:14:19,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-10-13 12:14:19,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:14:19,997 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-13 12:14:19,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-13 12:14:19,998 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-13 12:14:19,998 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-13 12:14:19,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:19,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:19,998 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:19,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:14:19,998 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:19,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1708973255, now seen corresponding path program 1 times [2024-10-13 12:14:19,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:20,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396277610] [2024-10-13 12:14:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:20,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:20,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:20,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396277610] [2024-10-13 12:14:20,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396277610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:20,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:20,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:14:20,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084492738] [2024-10-13 12:14:20,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:20,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:14:20,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:20,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:14:20,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:14:20,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:14:20,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:20,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:20,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:14:20,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:25,164 INFO L124 PetriNetUnfolderBase]: 32013/46212 cut-off events. [2024-10-13 12:14:25,164 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:14:25,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89695 conditions, 46212 events. 32013/46212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1981. Compared 335234 event pairs, 8935 based on Foata normal form. 0/45159 useless extension candidates. Maximal degree in co-relation 89689. Up to 19856 conditions per place. [2024-10-13 12:14:25,390 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 47 selfloop transitions, 8 changer transitions 101/169 dead transitions. [2024-10-13 12:14:25,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 169 transitions, 664 flow [2024-10-13 12:14:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:14:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:14:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 320 transitions. [2024-10-13 12:14:25,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2024-10-13 12:14:25,395 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 320 transitions. [2024-10-13 12:14:25,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 169 transitions, 664 flow [2024-10-13 12:14:25,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 169 transitions, 663 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:14:25,401 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-10-13 12:14:25,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-13 12:14:25,402 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-13 12:14:25,402 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-10-13 12:14:25,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:25,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:25,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:25,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:14:25,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:25,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:25,403 INFO L85 PathProgramCache]: Analyzing trace with hash -455486824, now seen corresponding path program 1 times [2024-10-13 12:14:25,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:25,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92317930] [2024-10-13 12:14:25,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:25,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:25,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:25,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92317930] [2024-10-13 12:14:25,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92317930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:25,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:25,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:14:25,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799687826] [2024-10-13 12:14:25,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:25,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:14:25,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:25,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:14:25,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:14:25,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-13 12:14:25,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:25,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:25,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-13 12:14:25,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:28,950 INFO L124 PetriNetUnfolderBase]: 17585/28210 cut-off events. [2024-10-13 12:14:28,951 INFO L125 PetriNetUnfolderBase]: For 26329/28818 co-relation queries the response was YES. [2024-10-13 12:14:29,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75563 conditions, 28210 events. 17585/28210 cut-off events. For 26329/28818 co-relation queries the response was YES. Maximal size of possible extension queue 1362. Compared 230059 event pairs, 5312 based on Foata normal form. 1020/28522 useless extension candidates. Maximal degree in co-relation 75548. Up to 15244 conditions per place. [2024-10-13 12:14:29,158 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/103 dead transitions. [2024-10-13 12:14:29,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 531 flow [2024-10-13 12:14:29,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:14:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 12:14:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-10-13 12:14:29,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-10-13 12:14:29,160 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 7 states and 237 transitions. [2024-10-13 12:14:29,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 531 flow [2024-10-13 12:14:29,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 477 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-10-13 12:14:29,377 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 192 flow [2024-10-13 12:14:29,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-13 12:14:29,378 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-13 12:14:29,379 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 192 flow [2024-10-13 12:14:29,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:29,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:29,380 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:29,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:14:29,380 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:29,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:29,380 INFO L85 PathProgramCache]: Analyzing trace with hash 541288801, now seen corresponding path program 1 times [2024-10-13 12:14:29,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:29,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129422099] [2024-10-13 12:14:29,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:29,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:29,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:29,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129422099] [2024-10-13 12:14:29,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129422099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:29,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:29,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:14:29,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645360623] [2024-10-13 12:14:29,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:29,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:14:29,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:29,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:14:29,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:14:29,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:14:29,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:29,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:29,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:14:29,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:33,662 INFO L124 PetriNetUnfolderBase]: 22115/32644 cut-off events. [2024-10-13 12:14:33,662 INFO L125 PetriNetUnfolderBase]: For 36541/36599 co-relation queries the response was YES. [2024-10-13 12:14:33,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91441 conditions, 32644 events. 22115/32644 cut-off events. For 36541/36599 co-relation queries the response was YES. Maximal size of possible extension queue 1330. Compared 230991 event pairs, 6860 based on Foata normal form. 777/33401 useless extension candidates. Maximal degree in co-relation 91423. Up to 17000 conditions per place. [2024-10-13 12:14:33,892 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 64 selfloop transitions, 12 changer transitions 78/167 dead transitions. [2024-10-13 12:14:33,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 167 transitions, 940 flow [2024-10-13 12:14:33,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:14:33,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:14:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 333 transitions. [2024-10-13 12:14:33,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6054545454545455 [2024-10-13 12:14:33,894 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 192 flow. Second operand 10 states and 333 transitions. [2024-10-13 12:14:33,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 167 transitions, 940 flow [2024-10-13 12:14:34,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 167 transitions, 898 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-10-13 12:14:34,217 INFO L231 Difference]: Finished difference. Result has 75 places, 55 transitions, 265 flow [2024-10-13 12:14:34,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=265, PETRI_PLACES=75, PETRI_TRANSITIONS=55} [2024-10-13 12:14:34,218 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2024-10-13 12:14:34,218 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 55 transitions, 265 flow [2024-10-13 12:14:34,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:34,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:34,219 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:34,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:14:34,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:34,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:34,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2118105380, now seen corresponding path program 1 times [2024-10-13 12:14:34,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:34,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701028794] [2024-10-13 12:14:34,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:34,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:34,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:34,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701028794] [2024-10-13 12:14:34,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701028794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:34,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:34,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:14:34,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243541260] [2024-10-13 12:14:34,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:34,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:14:34,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:34,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:14:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:14:34,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:14:34,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 55 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:34,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:34,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:14:34,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:37,880 INFO L124 PetriNetUnfolderBase]: 20126/29655 cut-off events. [2024-10-13 12:14:37,880 INFO L125 PetriNetUnfolderBase]: For 47817/48360 co-relation queries the response was YES. [2024-10-13 12:14:38,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91122 conditions, 29655 events. 20126/29655 cut-off events. For 47817/48360 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 207814 event pairs, 4034 based on Foata normal form. 705/30282 useless extension candidates. Maximal degree in co-relation 91102. Up to 12197 conditions per place. [2024-10-13 12:14:38,132 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 72 selfloop transitions, 8 changer transitions 82/175 dead transitions. [2024-10-13 12:14:38,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 175 transitions, 1099 flow [2024-10-13 12:14:38,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:14:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:14:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 328 transitions. [2024-10-13 12:14:38,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5963636363636363 [2024-10-13 12:14:38,134 INFO L175 Difference]: Start difference. First operand has 75 places, 55 transitions, 265 flow. Second operand 10 states and 328 transitions. [2024-10-13 12:14:38,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 175 transitions, 1099 flow [2024-10-13 12:14:39,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 175 transitions, 1045 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-10-13 12:14:39,305 INFO L231 Difference]: Finished difference. Result has 83 places, 59 transitions, 344 flow [2024-10-13 12:14:39,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=83, PETRI_TRANSITIONS=59} [2024-10-13 12:14:39,306 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-10-13 12:14:39,306 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 59 transitions, 344 flow [2024-10-13 12:14:39,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:39,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:39,307 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] [2024-10-13 12:14:39,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:14:39,307 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:39,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:39,307 INFO L85 PathProgramCache]: Analyzing trace with hash 577817066, now seen corresponding path program 1 times [2024-10-13 12:14:39,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:39,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410626523] [2024-10-13 12:14:39,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:39,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:39,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:39,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410626523] [2024-10-13 12:14:39,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410626523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:39,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:39,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:14:39,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065139694] [2024-10-13 12:14:39,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:39,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:14:39,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:39,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:14:39,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:14:39,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:14:39,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 59 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:39,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:39,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:14:39,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:44,665 INFO L124 PetriNetUnfolderBase]: 30806/46067 cut-off events. [2024-10-13 12:14:44,665 INFO L125 PetriNetUnfolderBase]: For 45697/52509 co-relation queries the response was YES. [2024-10-13 12:14:44,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115221 conditions, 46067 events. 30806/46067 cut-off events. For 45697/52509 co-relation queries the response was YES. Maximal size of possible extension queue 1739. Compared 337917 event pairs, 5525 based on Foata normal form. 2165/46804 useless extension candidates. Maximal degree in co-relation 115194. Up to 24444 conditions per place. [2024-10-13 12:14:45,073 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-10-13 12:14:45,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 95 transitions, 606 flow [2024-10-13 12:14:45,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:14:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:14:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-13 12:14:45,074 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-13 12:14:45,074 INFO L175 Difference]: Start difference. First operand has 83 places, 59 transitions, 344 flow. Second operand 4 states and 146 transitions. [2024-10-13 12:14:45,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 95 transitions, 606 flow [2024-10-13 12:14:45,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 95 transitions, 585 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-13 12:14:45,871 INFO L231 Difference]: Finished difference. Result has 77 places, 64 transitions, 369 flow [2024-10-13 12:14:45,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=369, PETRI_PLACES=77, PETRI_TRANSITIONS=64} [2024-10-13 12:14:45,872 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-10-13 12:14:45,872 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 64 transitions, 369 flow [2024-10-13 12:14:45,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:45,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:45,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:45,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:14:45,873 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:45,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash -142378508, now seen corresponding path program 1 times [2024-10-13 12:14:45,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:45,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28582083] [2024-10-13 12:14:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:46,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:46,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28582083] [2024-10-13 12:14:46,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28582083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:46,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:46,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:14:46,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043352034] [2024-10-13 12:14:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:46,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:14:46,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:46,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:14:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:14:46,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:14:46,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 64 transitions, 369 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:46,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:46,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:14:46,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:50,091 INFO L124 PetriNetUnfolderBase]: 24729/37327 cut-off events. [2024-10-13 12:14:50,091 INFO L125 PetriNetUnfolderBase]: For 29905/34283 co-relation queries the response was YES. [2024-10-13 12:14:50,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100382 conditions, 37327 events. 24729/37327 cut-off events. For 29905/34283 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 267798 event pairs, 3302 based on Foata normal form. 1653/37726 useless extension candidates. Maximal degree in co-relation 100356. Up to 12793 conditions per place. [2024-10-13 12:14:50,384 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 10 changer transitions 0/117 dead transitions. [2024-10-13 12:14:50,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 117 transitions, 758 flow [2024-10-13 12:14:50,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:14:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:14:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2024-10-13 12:14:50,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.68 [2024-10-13 12:14:50,385 INFO L175 Difference]: Start difference. First operand has 77 places, 64 transitions, 369 flow. Second operand 5 states and 187 transitions. [2024-10-13 12:14:50,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 117 transitions, 758 flow [2024-10-13 12:14:50,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 117 transitions, 731 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-10-13 12:14:50,406 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 422 flow [2024-10-13 12:14:50,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-10-13 12:14:50,407 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-10-13 12:14:50,407 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 422 flow [2024-10-13 12:14:50,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:50,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:50,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:50,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 12:14:50,408 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:50,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:50,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1758793303, now seen corresponding path program 1 times [2024-10-13 12:14:50,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:50,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167988316] [2024-10-13 12:14:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:50,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:50,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:50,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167988316] [2024-10-13 12:14:50,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167988316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:50,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:50,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:14:50,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632919792] [2024-10-13 12:14:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:50,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:14:50,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:14:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:14:50,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:14:50,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:50,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:50,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:14:50,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:53,974 INFO L124 PetriNetUnfolderBase]: 19617/29403 cut-off events. [2024-10-13 12:14:53,974 INFO L125 PetriNetUnfolderBase]: For 42642/46014 co-relation queries the response was YES. [2024-10-13 12:14:54,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89105 conditions, 29403 events. 19617/29403 cut-off events. For 42642/46014 co-relation queries the response was YES. Maximal size of possible extension queue 1259. Compared 203073 event pairs, 2492 based on Foata normal form. 985/29195 useless extension candidates. Maximal degree in co-relation 89080. Up to 9942 conditions per place. [2024-10-13 12:14:54,179 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 92 selfloop transitions, 14 changer transitions 0/135 dead transitions. [2024-10-13 12:14:54,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 135 transitions, 889 flow [2024-10-13 12:14:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:14:54,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:14:54,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 226 transitions. [2024-10-13 12:14:54,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-10-13 12:14:54,181 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 422 flow. Second operand 6 states and 226 transitions. [2024-10-13 12:14:54,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 135 transitions, 889 flow [2024-10-13 12:14:54,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 135 transitions, 873 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-13 12:14:54,200 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 492 flow [2024-10-13 12:14:54,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=492, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2024-10-13 12:14:54,201 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-10-13 12:14:54,201 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 492 flow [2024-10-13 12:14:54,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:54,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:54,201 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:54,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 12:14:54,202 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:54,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1120689524, now seen corresponding path program 1 times [2024-10-13 12:14:54,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:54,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550339472] [2024-10-13 12:14:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:54,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:55,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:55,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:55,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550339472] [2024-10-13 12:14:55,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550339472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:55,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:55,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 12:14:55,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995478638] [2024-10-13 12:14:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:55,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 12:14:55,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:55,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 12:14:55,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 12:14:55,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-13 12:14:55,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 492 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:55,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:55,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-13 12:14:55,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:14:59,019 INFO L124 PetriNetUnfolderBase]: 18319/32418 cut-off events. [2024-10-13 12:14:59,019 INFO L125 PetriNetUnfolderBase]: For 54875/62387 co-relation queries the response was YES. [2024-10-13 12:14:59,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96444 conditions, 32418 events. 18319/32418 cut-off events. For 54875/62387 co-relation queries the response was YES. Maximal size of possible extension queue 1949. Compared 304086 event pairs, 6250 based on Foata normal form. 868/29937 useless extension candidates. Maximal degree in co-relation 96417. Up to 12662 conditions per place. [2024-10-13 12:14:59,271 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 69 selfloop transitions, 17 changer transitions 18/152 dead transitions. [2024-10-13 12:14:59,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 152 transitions, 982 flow [2024-10-13 12:14:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:14:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:14:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 315 transitions. [2024-10-13 12:14:59,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-10-13 12:14:59,273 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 492 flow. Second operand 9 states and 315 transitions. [2024-10-13 12:14:59,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 152 transitions, 982 flow [2024-10-13 12:14:59,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 152 transitions, 951 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-13 12:14:59,621 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 623 flow [2024-10-13 12:14:59,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=623, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2024-10-13 12:14:59,622 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 32 predicate places. [2024-10-13 12:14:59,622 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 623 flow [2024-10-13 12:14:59,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:59,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:59,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:14:59,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 12:14:59,623 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:59,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1408915426, now seen corresponding path program 2 times [2024-10-13 12:14:59,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:59,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549016385] [2024-10-13 12:14:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:59,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:59,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549016385] [2024-10-13 12:14:59,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549016385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:59,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:59,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:14:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845423781] [2024-10-13 12:14:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:59,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 12:14:59,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:59,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 12:14:59,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-13 12:14:59,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:14:59,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 623 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:14:59,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:59,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:14:59,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand