./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/mix039.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 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/mix039.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 42c5ff0d69642601057eb29fc7d78b67af5ab0b43644460199f4561abe049d3b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:31:28,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:31:28,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:31:28,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:31:28,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:31:28,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:31:28,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:31:28,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:31:28,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:31:28,347 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:31:28,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:31:28,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:31:28,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:31:28,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:31:28,349 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:31:28,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:31:28,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:31:28,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:31:28,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:31:28,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:31:28,352 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:31:28,353 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:31:28,353 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:31:28,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:31:28,353 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:31:28,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:31:28,355 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:31:28,355 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:31:28,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:31:28,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:31:28,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:31:28,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:31:28,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:31:28,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:31:28,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:31:28,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:31:28,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:31:28,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:31:28,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:31:28,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:31:28,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:31:28,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:31:28,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42c5ff0d69642601057eb29fc7d78b67af5ab0b43644460199f4561abe049d3b [2024-10-14 19:31:28,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:31:28,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:31:28,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:31:28,560 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:31:28,561 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:31:28,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix039.oepc.i [2024-10-14 19:31:29,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:31:29,896 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:31:29,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix039.oepc.i [2024-10-14 19:31:29,907 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b6c2f1f/3d1f1f7727e74e9092ac7a6d6907eadb/FLAG87ade7193 [2024-10-14 19:31:29,917 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b6c2f1f/3d1f1f7727e74e9092ac7a6d6907eadb [2024-10-14 19:31:29,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:31:29,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:31:29,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:31:29,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:31:29,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:31:29,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:29" (1/1) ... [2024-10-14 19:31:29,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f99899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:29, skipping insertion in model container [2024-10-14 19:31:29,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:29" (1/1) ... [2024-10-14 19:31:29,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:31:30,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:31:30,305 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:31:30,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:31:30,392 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:31:30,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30 WrapperNode [2024-10-14 19:31:30,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:31:30,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:31:30,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:31:30,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:31:30,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,447 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-10-14 19:31:30,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:31:30,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:31:30,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:31:30,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:31:30,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,463 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,490 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]. [2024-10-14 19:31:30,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:31:30,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:31:30,518 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:31:30,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:31:30,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (1/1) ... [2024-10-14 19:31:30,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:31:30,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:31:30,546 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) [2024-10-14 19:31:30,549 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 [2024-10-14 19:31:30,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:31:30,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:31:30,586 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:31:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:31:30,586 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:31:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:31:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:31:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:31:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 19:31:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 19:31:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:31:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:31:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:31:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:31:30,588 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:31:30,691 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:31:30,693 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:31:30,972 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:31:30,972 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:31:31,121 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:31:31,121 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:31:31,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:31 BoogieIcfgContainer [2024-10-14 19:31:31,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:31:31,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:31:31,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:31:31,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:31:31,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:31:29" (1/3) ... [2024-10-14 19:31:31,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485e70ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:31, skipping insertion in model container [2024-10-14 19:31:31,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:30" (2/3) ... [2024-10-14 19:31:31,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485e70ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:31, skipping insertion in model container [2024-10-14 19:31:31,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:31" (3/3) ... [2024-10-14 19:31:31,128 INFO L112 eAbstractionObserver]: Analyzing ICFG mix039.oepc.i [2024-10-14 19:31:31,140 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:31:31,140 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:31:31,140 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:31:31,177 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:31:31,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:31:31,232 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-14 19:31:31,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:31,235 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 5. 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. [2024-10-14 19:31:31,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:31:31,239 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-14 19:31:31,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:31:31,277 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;@31817763, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:31:31,282 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 19:31:31,285 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:31:31,285 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-14 19:31:31,285 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:31,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:31,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-14 19:31:31,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:31,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash 13010806, now seen corresponding path program 1 times [2024-10-14 19:31:31,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:31,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671310686] [2024-10-14 19:31:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:31,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:31,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:31,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:31,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671310686] [2024-10-14 19:31:31,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671310686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:31,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:31,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:31:31,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862175866] [2024-10-14 19:31:31,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:31,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:31:31,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:31,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:31:31,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:31:31,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-14 19:31:31,719 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) [2024-10-14 19:31:31,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:31,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-14 19:31:31,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:32,491 INFO L124 PetriNetUnfolderBase]: 3311/5215 cut-off events. [2024-10-14 19:31:32,492 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-14 19:31:32,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9895 conditions, 5215 events. 3311/5215 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 33468 event pairs, 2177 based on Foata normal form. 288/5439 useless extension candidates. Maximal degree in co-relation 9883. Up to 3661 conditions per place. [2024-10-14 19:31:32,529 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-10-14 19:31:32,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-10-14 19:31:32,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:31:32,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:31:32,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-14 19:31:32,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-10-14 19:31:32,541 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-10-14 19:31:32,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-10-14 19:31:32,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:31:32,549 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-14 19:31:32,550 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} [2024-10-14 19:31:32,554 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-14 19:31:32,555 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-14 19:31:32,555 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) [2024-10-14 19:31:32,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:32,555 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:32,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:31:32,556 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:32,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:32,557 INFO L85 PathProgramCache]: Analyzing trace with hash -947079504, now seen corresponding path program 1 times [2024-10-14 19:31:32,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:32,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727258735] [2024-10-14 19:31:32,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:32,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:32,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:32,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727258735] [2024-10-14 19:31:32,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727258735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:32,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:32,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:31:32,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132482267] [2024-10-14 19:31:32,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:32,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:31:32,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:32,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:31:32,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:31:32,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-14 19:31:32,634 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) [2024-10-14 19:31:32,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:32,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-14 19:31:32,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:33,255 INFO L124 PetriNetUnfolderBase]: 2903/4947 cut-off events. [2024-10-14 19:31:33,255 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-14 19:31:33,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9351 conditions, 4947 events. 2903/4947 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 35212 event pairs, 2903 based on Foata normal form. 144/4849 useless extension candidates. Maximal degree in co-relation 9341. Up to 4016 conditions per place. [2024-10-14 19:31:33,279 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-14 19:31:33,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-10-14 19:31:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:31:33,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:31:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-14 19:31:33,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-14 19:31:33,282 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-10-14 19:31:33,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-10-14 19:31:33,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:31:33,284 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-14 19:31:33,285 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} [2024-10-14 19:31:33,285 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-14 19:31:33,285 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-14 19:31:33,286 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) [2024-10-14 19:31:33,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:33,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:33,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:31:33,286 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:33,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash -947078218, now seen corresponding path program 1 times [2024-10-14 19:31:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:33,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780067869] [2024-10-14 19:31:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:33,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780067869] [2024-10-14 19:31:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780067869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:33,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:33,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:31:33,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105280289] [2024-10-14 19:31:33,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:33,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:33,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:33,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:33,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:33,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-10-14 19:31:33,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2024-10-14 19:31:33,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:33,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-10-14 19:31:33,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:37,360 INFO L124 PetriNetUnfolderBase]: 28756/41839 cut-off events. [2024-10-14 19:31:37,360 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:37,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80941 conditions, 41839 events. 28756/41839 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1903. Compared 304050 event pairs, 7300 based on Foata normal form. 0/40652 useless extension candidates. Maximal degree in co-relation 80935. Up to 16239 conditions per place. [2024-10-14 19:31:37,558 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 48 selfloop transitions, 7 changer transitions 96/165 dead transitions. [2024-10-14 19:31:37,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 165 transitions, 648 flow [2024-10-14 19:31:37,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:31:37,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:31:37,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 324 transitions. [2024-10-14 19:31:37,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-10-14 19:31:37,561 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 324 transitions. [2024-10-14 19:31:37,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 165 transitions, 648 flow [2024-10-14 19:31:37,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 165 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:31:37,565 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 193 flow [2024-10-14 19:31:37,565 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=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=193, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-10-14 19:31:37,566 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-14 19:31:37,566 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 193 flow [2024-10-14 19:31:37,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2024-10-14 19:31:37,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:37,566 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:37,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:31:37,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:37,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash -595831147, now seen corresponding path program 1 times [2024-10-14 19:31:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:37,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773510617] [2024-10-14 19:31:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:37,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:37,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:37,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773510617] [2024-10-14 19:31:37,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773510617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:37,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:37,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:31:37,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034608374] [2024-10-14 19:31:37,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:37,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:37,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:37,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:37,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:37,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-14 19:31:37,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 193 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) [2024-10-14 19:31:37,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:37,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-14 19:31:37,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:40,476 INFO L124 PetriNetUnfolderBase]: 15914/25320 cut-off events. [2024-10-14 19:31:40,477 INFO L125 PetriNetUnfolderBase]: For 22091/23622 co-relation queries the response was YES. [2024-10-14 19:31:40,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66012 conditions, 25320 events. 15914/25320 cut-off events. For 22091/23622 co-relation queries the response was YES. Maximal size of possible extension queue 1310. Compared 202475 event pairs, 4135 based on Foata normal form. 713/24958 useless extension candidates. Maximal degree in co-relation 65997. Up to 14194 conditions per place. [2024-10-14 19:31:40,659 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/102 dead transitions. [2024-10-14 19:31:40,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 102 transitions, 517 flow [2024-10-14 19:31:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:31:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:31:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-10-14 19:31:40,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-10-14 19:31:40,661 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 193 flow. Second operand 7 states and 237 transitions. [2024-10-14 19:31:40,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 102 transitions, 517 flow [2024-10-14 19:31:40,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 467 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-10-14 19:31:40,825 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 182 flow [2024-10-14 19:31:40,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-10-14 19:31:40,827 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-14 19:31:40,827 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 182 flow [2024-10-14 19:31:40,828 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) [2024-10-14 19:31:40,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:40,829 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:40,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:31:40,829 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:40,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:40,830 INFO L85 PathProgramCache]: Analyzing trace with hash 296418292, now seen corresponding path program 1 times [2024-10-14 19:31:40,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:40,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138337734] [2024-10-14 19:31:40,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:40,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:40,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:40,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:40,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138337734] [2024-10-14 19:31:40,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138337734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:40,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:40,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:31:40,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705810652] [2024-10-14 19:31:40,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:40,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:40,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:40,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:40,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:40,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-10-14 19:31:40,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 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) [2024-10-14 19:31:40,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:40,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-10-14 19:31:40,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:43,577 INFO L124 PetriNetUnfolderBase]: 17160/27371 cut-off events. [2024-10-14 19:31:43,577 INFO L125 PetriNetUnfolderBase]: For 24430/24636 co-relation queries the response was YES. [2024-10-14 19:31:43,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69089 conditions, 27371 events. 17160/27371 cut-off events. For 24430/24636 co-relation queries the response was YES. Maximal size of possible extension queue 1327. Compared 217314 event pairs, 5752 based on Foata normal form. 678/27575 useless extension candidates. Maximal degree in co-relation 69071. Up to 18045 conditions per place. [2024-10-14 19:31:43,737 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 40 selfloop transitions, 5 changer transitions 47/112 dead transitions. [2024-10-14 19:31:43,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 112 transitions, 592 flow [2024-10-14 19:31:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:31:43,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:31:43,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-10-14 19:31:43,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6233766233766234 [2024-10-14 19:31:43,741 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 182 flow. Second operand 7 states and 240 transitions. [2024-10-14 19:31:43,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 112 transitions, 592 flow [2024-10-14 19:31:44,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 112 transitions, 566 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-10-14 19:31:44,072 INFO L231 Difference]: Finished difference. Result has 69 places, 52 transitions, 219 flow [2024-10-14 19:31:44,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=219, PETRI_PLACES=69, PETRI_TRANSITIONS=52} [2024-10-14 19:31:44,073 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-10-14 19:31:44,073 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 52 transitions, 219 flow [2024-10-14 19:31:44,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 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) [2024-10-14 19:31:44,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:44,073 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] [2024-10-14 19:31:44,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:31:44,074 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:44,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1652289709, now seen corresponding path program 1 times [2024-10-14 19:31:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:44,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585445774] [2024-10-14 19:31:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:44,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:44,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:44,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585445774] [2024-10-14 19:31:44,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585445774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:44,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:44,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:31:44,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035306703] [2024-10-14 19:31:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:44,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:31:44,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:31:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:31:44,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-14 19:31:44,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 52 transitions, 219 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) [2024-10-14 19:31:44,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:44,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-14 19:31:44,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:48,683 INFO L124 PetriNetUnfolderBase]: 30922/46410 cut-off events. [2024-10-14 19:31:48,683 INFO L125 PetriNetUnfolderBase]: For 28735/31465 co-relation queries the response was YES. [2024-10-14 19:31:48,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110494 conditions, 46410 events. 30922/46410 cut-off events. For 28735/31465 co-relation queries the response was YES. Maximal size of possible extension queue 1931. Compared 348440 event pairs, 5076 based on Foata normal form. 1621/46719 useless extension candidates. Maximal degree in co-relation 110477. Up to 25055 conditions per place. [2024-10-14 19:31:49,040 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 57 selfloop transitions, 6 changer transitions 0/86 dead transitions. [2024-10-14 19:31:49,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 86 transitions, 435 flow [2024-10-14 19:31:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:31:49,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:31:49,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-14 19:31:49,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-14 19:31:49,042 INFO L175 Difference]: Start difference. First operand has 69 places, 52 transitions, 219 flow. Second operand 4 states and 146 transitions. [2024-10-14 19:31:49,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 86 transitions, 435 flow [2024-10-14 19:31:49,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 86 transitions, 426 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-14 19:31:49,219 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 256 flow [2024-10-14 19:31:49,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2024-10-14 19:31:49,221 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2024-10-14 19:31:49,221 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 256 flow [2024-10-14 19:31:49,221 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) [2024-10-14 19:31:49,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:49,221 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] [2024-10-14 19:31:49,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:31:49,221 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:49,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1616473434, now seen corresponding path program 1 times [2024-10-14 19:31:49,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:49,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006872733] [2024-10-14 19:31:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:49,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:49,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:49,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006872733] [2024-10-14 19:31:49,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006872733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:49,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:49,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:49,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767187986] [2024-10-14 19:31:49,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:49,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:49,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:49,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:49,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:49,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-10-14 19:31:49,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 57 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2024-10-14 19:31:49,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:49,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-10-14 19:31:49,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:54,721 INFO L124 PetriNetUnfolderBase]: 36782/54761 cut-off events. [2024-10-14 19:31:54,721 INFO L125 PetriNetUnfolderBase]: For 58701/61772 co-relation queries the response was YES. [2024-10-14 19:31:54,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152877 conditions, 54761 events. 36782/54761 cut-off events. For 58701/61772 co-relation queries the response was YES. Maximal size of possible extension queue 2461. Compared 423450 event pairs, 11397 based on Foata normal form. 911/52720 useless extension candidates. Maximal degree in co-relation 152859. Up to 24941 conditions per place. [2024-10-14 19:31:55,042 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 109 selfloop transitions, 14 changer transitions 0/142 dead transitions. [2024-10-14 19:31:55,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 142 transitions, 834 flow [2024-10-14 19:31:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 19:31:55,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 19:31:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 271 transitions. [2024-10-14 19:31:55,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.615909090909091 [2024-10-14 19:31:55,044 INFO L175 Difference]: Start difference. First operand has 67 places, 57 transitions, 256 flow. Second operand 8 states and 271 transitions. [2024-10-14 19:31:55,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 142 transitions, 834 flow [2024-10-14 19:31:55,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 142 transitions, 826 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-10-14 19:31:55,057 INFO L231 Difference]: Finished difference. Result has 79 places, 64 transitions, 367 flow [2024-10-14 19:31:55,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=367, PETRI_PLACES=79, PETRI_TRANSITIONS=64} [2024-10-14 19:31:55,058 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-10-14 19:31:55,058 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 64 transitions, 367 flow [2024-10-14 19:31:55,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2024-10-14 19:31:55,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:55,059 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] [2024-10-14 19:31:55,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:31:55,059 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:55,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:55,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1872748772, now seen corresponding path program 1 times [2024-10-14 19:31:55,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:55,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922881702] [2024-10-14 19:31:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:55,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:55,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:55,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922881702] [2024-10-14 19:31:55,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922881702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:55,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:55,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:55,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609832798] [2024-10-14 19:31:55,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:55,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:55,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:55,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:55,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-14 19:31:55,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 64 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-10-14 19:31:55,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:55,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-14 19:31:55,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:32:04,893 INFO L124 PetriNetUnfolderBase]: 65279/98774 cut-off events. [2024-10-14 19:32:04,894 INFO L125 PetriNetUnfolderBase]: For 166728/171805 co-relation queries the response was YES. [2024-10-14 19:32:05,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286863 conditions, 98774 events. 65279/98774 cut-off events. For 166728/171805 co-relation queries the response was YES. Maximal size of possible extension queue 4237. Compared 840499 event pairs, 7473 based on Foata normal form. 1298/95286 useless extension candidates. Maximal degree in co-relation 286838. Up to 36281 conditions per place. [2024-10-14 19:32:05,707 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 124 selfloop transitions, 39 changer transitions 0/181 dead transitions. [2024-10-14 19:32:05,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 181 transitions, 1245 flow [2024-10-14 19:32:05,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:32:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:32:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 300 transitions. [2024-10-14 19:32:05,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-14 19:32:05,709 INFO L175 Difference]: Start difference. First operand has 79 places, 64 transitions, 367 flow. Second operand 9 states and 300 transitions. [2024-10-14 19:32:05,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 181 transitions, 1245 flow