./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 58ff882a2a27d6746f141646b2befb8bb2c361fcab13fbe9966095432ec78b12 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:02:51,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:02:51,566 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 20:02:51,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:02:51,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:02:51,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:02:51,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:02:51,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:02:51,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:02:51,599 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:02:51,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:02:51,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:02:51,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:02:51,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:02:51,600 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:02:51,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:02:51,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:02:51,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:02:51,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:02:51,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:02:51,602 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 20:02:51,607 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 20:02:51,608 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 20:02:51,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:02:51,608 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 20:02:51,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:02:51,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:02:51,609 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:02:51,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:02:51,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:02:51,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:02:51,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:02:51,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:02:51,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:02:51,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:02:51,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:02:51,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:02:51,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:02:51,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:02:51,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:02:51,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:02:51,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:02:51,611 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58ff882a2a27d6746f141646b2befb8bb2c361fcab13fbe9966095432ec78b12 [2024-10-11 20:02:51,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:02:51,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:02:51,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:02:51,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:02:51,866 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:02:51,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-10-11 20:02:53,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:02:53,342 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:02:53,342 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-10-11 20:02:53,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a92df575b/a626b6a48bd449b3a057c26f07f5c591/FLAGaa5322e04 [2024-10-11 20:02:53,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a92df575b/a626b6a48bd449b3a057c26f07f5c591 [2024-10-11 20:02:53,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:02:53,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:02:53,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:02:53,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:02:53,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:02:53,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b34b548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53, skipping insertion in model container [2024-10-11 20:02:53,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,398 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:02:53,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:02:53,589 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:02:53,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:02:53,624 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:02:53,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53 WrapperNode [2024-10-11 20:02:53,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:02:53,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:02:53,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:02:53,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:02:53,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,666 INFO L138 Inliner]: procedures = 22, calls = 65, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 173 [2024-10-11 20:02:53,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:02:53,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:02:53,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:02:53,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:02:53,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,682 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,697 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]. [2024-10-11 20:02:53,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,702 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:02:53,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:02:53,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:02:53,710 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:02:53,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (1/1) ... [2024-10-11 20:02:53,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:02:53,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:02:53,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:02:53,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:02:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:02:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 20:02:53,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 20:02:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 20:02:53,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 20:02:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 20:02:53,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 20:02:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-11 20:02:53,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-11 20:02:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 20:02:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 20:02:53,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 20:02:53,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:02:53,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:02:53,785 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 20:02:53,881 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:02:53,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:02:54,072 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 20:02:54,072 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:02:54,222 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:02:54,222 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 20:02:54,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:02:54 BoogieIcfgContainer [2024-10-11 20:02:54,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:02:54,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:02:54,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:02:54,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:02:54,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:02:53" (1/3) ... [2024-10-11 20:02:54,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ad31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:02:54, skipping insertion in model container [2024-10-11 20:02:54,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:02:53" (2/3) ... [2024-10-11 20:02:54,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ad31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:02:54, skipping insertion in model container [2024-10-11 20:02:54,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:02:54" (3/3) ... [2024-10-11 20:02:54,229 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-10-11 20:02:54,242 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:02:54,242 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 20:02:54,243 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 20:02:54,293 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 20:02:54,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 54 transitions, 136 flow [2024-10-11 20:02:54,352 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2024-10-11 20:02:54,355 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 20:02:54,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 0/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-11 20:02:54,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 54 transitions, 136 flow [2024-10-11 20:02:54,360 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 49 transitions, 122 flow [2024-10-11 20:02:54,366 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:02:54,375 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;@15c0af20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:02:54,376 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 20:02:54,392 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 20:02:54,392 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2024-10-11 20:02:54,392 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 20:02:54,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:54,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:54,393 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:02:54,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash 192213605, now seen corresponding path program 1 times [2024-10-11 20:02:54,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:54,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750964364] [2024-10-11 20:02:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:54,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:54,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:54,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750964364] [2024-10-11 20:02:54,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750964364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:54,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:54,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:02:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219606554] [2024-10-11 20:02:54,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:54,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:02:54,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:54,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:02:54,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:02:54,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-11 20:02:54,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 49 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:02:54,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:54,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-11 20:02:54,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:55,142 INFO L124 PetriNetUnfolderBase]: 637/1259 cut-off events. [2024-10-11 20:02:55,143 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-10-11 20:02:55,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2366 conditions, 1259 events. 637/1259 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 7896 event pairs, 160 based on Foata normal form. 10/1200 useless extension candidates. Maximal degree in co-relation 2039. Up to 825 conditions per place. [2024-10-11 20:02:55,160 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 30 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-10-11 20:02:55,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 209 flow [2024-10-11 20:02:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:02:55,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 20:02:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-10-11 20:02:55,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7469135802469136 [2024-10-11 20:02:55,172 INFO L175 Difference]: Start difference. First operand has 62 places, 49 transitions, 122 flow. Second operand 3 states and 121 transitions. [2024-10-11 20:02:55,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 209 flow [2024-10-11 20:02:55,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 56 transitions, 187 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-11 20:02:55,180 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 110 flow [2024-10-11 20:02:55,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=52, 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=110, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-10-11 20:02:55,186 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -7 predicate places. [2024-10-11 20:02:55,187 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 110 flow [2024-10-11 20:02:55,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:02:55,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:55,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:55,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:02:55,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:02:55,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:55,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2108424979, now seen corresponding path program 2 times [2024-10-11 20:02:55,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:55,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196917089] [2024-10-11 20:02:55,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:55,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:55,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:55,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196917089] [2024-10-11 20:02:55,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196917089] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:55,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:55,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:02:55,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820884882] [2024-10-11 20:02:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:55,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:02:55,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:55,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:02:55,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:02:55,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-11 20:02:55,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:02:55,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:55,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-11 20:02:55,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:55,472 INFO L124 PetriNetUnfolderBase]: 597/1161 cut-off events. [2024-10-11 20:02:55,472 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-10-11 20:02:55,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2184 conditions, 1161 events. 597/1161 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7106 event pairs, 424 based on Foata normal form. 25/1139 useless extension candidates. Maximal degree in co-relation 2045. Up to 853 conditions per place. [2024-10-11 20:02:55,479 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 30 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-10-11 20:02:55,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 196 flow [2024-10-11 20:02:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:02:55,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 20:02:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-10-11 20:02:55,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-10-11 20:02:55,483 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 110 flow. Second operand 3 states and 120 transitions. [2024-10-11 20:02:55,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 196 flow [2024-10-11 20:02:55,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 20:02:55,486 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 114 flow [2024-10-11 20:02:55,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=53, 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=114, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2024-10-11 20:02:55,487 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-11 20:02:55,487 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 114 flow [2024-10-11 20:02:55,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:02:55,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:55,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:55,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:02:55,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:02:55,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:55,489 INFO L85 PathProgramCache]: Analyzing trace with hash -745519875, now seen corresponding path program 3 times [2024-10-11 20:02:55,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:55,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284421149] [2024-10-11 20:02:55,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:55,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:55,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:55,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284421149] [2024-10-11 20:02:55,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284421149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:55,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:55,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:02:55,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20447235] [2024-10-11 20:02:55,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:55,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:02:55,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:02:55,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:02:55,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-11 20:02:55,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:02:55,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:55,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-11 20:02:55,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:02:55,793 INFO L124 PetriNetUnfolderBase]: 599/1165 cut-off events. [2024-10-11 20:02:55,793 INFO L125 PetriNetUnfolderBase]: For 164/168 co-relation queries the response was YES. [2024-10-11 20:02:55,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2273 conditions, 1165 events. 599/1165 cut-off events. For 164/168 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7269 event pairs, 424 based on Foata normal form. 24/1129 useless extension candidates. Maximal degree in co-relation 2242. Up to 857 conditions per place. [2024-10-11 20:02:55,803 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 32 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-10-11 20:02:55,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 58 transitions, 209 flow [2024-10-11 20:02:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:02:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 20:02:55,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-10-11 20:02:55,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7530864197530864 [2024-10-11 20:02:55,808 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 114 flow. Second operand 3 states and 122 transitions. [2024-10-11 20:02:55,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 58 transitions, 209 flow [2024-10-11 20:02:55,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 205 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 20:02:55,810 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 118 flow [2024-10-11 20:02:55,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, 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=118, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2024-10-11 20:02:55,812 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -5 predicate places. [2024-10-11 20:02:55,812 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 118 flow [2024-10-11 20:02:55,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:02:55,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:02:55,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:02:55,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 20:02:55,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:02:55,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:02:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash 689260857, now seen corresponding path program 4 times [2024-10-11 20:02:55,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:02:55,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641459796] [2024-10-11 20:02:55,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:02:55,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:02:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:02:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:02:57,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:02:57,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641459796] [2024-10-11 20:02:57,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641459796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:02:57,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:02:57,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 20:02:57,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361420336] [2024-10-11 20:02:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:02:57,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 20:02:57,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:02:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 20:02:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:02:58,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-11 20:02:58,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 118 flow. Second operand has 14 states, 14 states have (on average 16.714285714285715) internal successors, (234), 14 states have internal predecessors, (234), 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) [2024-10-11 20:02:58,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:02:58,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-11 20:02:58,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:01,309 INFO L124 PetriNetUnfolderBase]: 22460/32237 cut-off events. [2024-10-11 20:03:01,310 INFO L125 PetriNetUnfolderBase]: For 4420/4420 co-relation queries the response was YES. [2024-10-11 20:03:01,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68353 conditions, 32237 events. 22460/32237 cut-off events. For 4420/4420 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 199047 event pairs, 4030 based on Foata normal form. 1/32224 useless extension candidates. Maximal degree in co-relation 34664. Up to 8445 conditions per place. [2024-10-11 20:03:01,476 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 223 selfloop transitions, 16 changer transitions 18/266 dead transitions. [2024-10-11 20:03:01,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 266 transitions, 1149 flow [2024-10-11 20:03:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 20:03:01,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 20:03:01,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 468 transitions. [2024-10-11 20:03:01,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-10-11 20:03:01,480 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 118 flow. Second operand 15 states and 468 transitions. [2024-10-11 20:03:01,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 266 transitions, 1149 flow [2024-10-11 20:03:01,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 266 transitions, 1145 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 20:03:01,497 INFO L231 Difference]: Finished difference. Result has 82 places, 63 transitions, 244 flow [2024-10-11 20:03:01,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=244, PETRI_PLACES=82, PETRI_TRANSITIONS=63} [2024-10-11 20:03:01,498 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2024-10-11 20:03:01,499 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 63 transitions, 244 flow [2024-10-11 20:03:01,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.714285714285715) internal successors, (234), 14 states have internal predecessors, (234), 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) [2024-10-11 20:03:01,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:01,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:01,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 20:03:01,501 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:03:01,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:01,501 INFO L85 PathProgramCache]: Analyzing trace with hash 59405345, now seen corresponding path program 5 times [2024-10-11 20:03:01,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:01,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117155310] [2024-10-11 20:03:01,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:01,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:01,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:01,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117155310] [2024-10-11 20:03:01,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117155310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:01,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:01,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:03:01,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926873509] [2024-10-11 20:03:01,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:01,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:03:01,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:01,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:03:01,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:03:01,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-11 20:03:01,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 63 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:03:01,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:01,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-11 20:03:01,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:01,956 INFO L124 PetriNetUnfolderBase]: 2485/4727 cut-off events. [2024-10-11 20:03:01,956 INFO L125 PetriNetUnfolderBase]: For 1417/1635 co-relation queries the response was YES. [2024-10-11 20:03:01,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10843 conditions, 4727 events. 2485/4727 cut-off events. For 1417/1635 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 37184 event pairs, 1005 based on Foata normal form. 66/4331 useless extension candidates. Maximal degree in co-relation 10797. Up to 3548 conditions per place. [2024-10-11 20:03:01,991 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 28 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-10-11 20:03:01,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 66 transitions, 302 flow [2024-10-11 20:03:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:03:01,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 20:03:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-11 20:03:01,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7283950617283951 [2024-10-11 20:03:01,992 INFO L175 Difference]: Start difference. First operand has 82 places, 63 transitions, 244 flow. Second operand 3 states and 118 transitions. [2024-10-11 20:03:01,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 66 transitions, 302 flow [2024-10-11 20:03:02,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 66 transitions, 292 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-11 20:03:02,025 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 220 flow [2024-10-11 20:03:02,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2024-10-11 20:03:02,026 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-10-11 20:03:02,027 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 220 flow [2024-10-11 20:03:02,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-10-11 20:03:02,027 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:02,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:02,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 20:03:02,027 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:03:02,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:02,028 INFO L85 PathProgramCache]: Analyzing trace with hash -191168531, now seen corresponding path program 6 times [2024-10-11 20:03:02,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:02,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597719882] [2024-10-11 20:03:02,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:02,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:03,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:03,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:03,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597719882] [2024-10-11 20:03:03,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597719882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:03,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:03,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 20:03:03,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673711578] [2024-10-11 20:03:03,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:03,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 20:03:03,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:03,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 20:03:03,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:03:03,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-11 20:03:03,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 220 flow. Second operand has 14 states, 14 states have (on average 16.714285714285715) internal successors, (234), 14 states have internal predecessors, (234), 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) [2024-10-11 20:03:03,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:03,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-11 20:03:03,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:08,163 INFO L124 PetriNetUnfolderBase]: 35663/51251 cut-off events. [2024-10-11 20:03:08,164 INFO L125 PetriNetUnfolderBase]: For 31790/31790 co-relation queries the response was YES. [2024-10-11 20:03:08,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135214 conditions, 51251 events. 35663/51251 cut-off events. For 31790/31790 co-relation queries the response was YES. Maximal size of possible extension queue 1455. Compared 339206 event pairs, 8066 based on Foata normal form. 1/51246 useless extension candidates. Maximal degree in co-relation 100858. Up to 14488 conditions per place. [2024-10-11 20:03:08,504 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 248 selfloop transitions, 24 changer transitions 18/299 dead transitions. [2024-10-11 20:03:08,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 299 transitions, 1595 flow [2024-10-11 20:03:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:03:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 20:03:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 446 transitions. [2024-10-11 20:03:08,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58994708994709 [2024-10-11 20:03:08,507 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 220 flow. Second operand 14 states and 446 transitions. [2024-10-11 20:03:08,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 299 transitions, 1595 flow [2024-10-11 20:03:09,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 299 transitions, 1591 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 20:03:09,204 INFO L231 Difference]: Finished difference. Result has 100 places, 76 transitions, 431 flow [2024-10-11 20:03:09,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=431, PETRI_PLACES=100, PETRI_TRANSITIONS=76} [2024-10-11 20:03:09,205 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 38 predicate places. [2024-10-11 20:03:09,205 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 76 transitions, 431 flow [2024-10-11 20:03:09,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.714285714285715) internal successors, (234), 14 states have internal predecessors, (234), 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) [2024-10-11 20:03:09,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:09,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:09,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 20:03:09,206 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:03:09,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1128953787, now seen corresponding path program 7 times [2024-10-11 20:03:09,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:09,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008216879] [2024-10-11 20:03:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:09,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:10,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:10,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008216879] [2024-10-11 20:03:10,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008216879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:10,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:10,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 20:03:10,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121442130] [2024-10-11 20:03:10,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:10,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 20:03:10,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:10,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 20:03:10,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:03:10,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-11 20:03:10,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 76 transitions, 431 flow. Second operand has 14 states, 14 states have (on average 16.714285714285715) internal successors, (234), 14 states have internal predecessors, (234), 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) [2024-10-11 20:03:10,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:10,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-11 20:03:10,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 20:03:20,001 INFO L124 PetriNetUnfolderBase]: 79316/114538 cut-off events. [2024-10-11 20:03:20,002 INFO L125 PetriNetUnfolderBase]: For 200857/200857 co-relation queries the response was YES. [2024-10-11 20:03:20,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358823 conditions, 114538 events. 79316/114538 cut-off events. For 200857/200857 co-relation queries the response was YES. Maximal size of possible extension queue 3607. Compared 850421 event pairs, 20269 based on Foata normal form. 1/114532 useless extension candidates. Maximal degree in co-relation 358507. Up to 32193 conditions per place. [2024-10-11 20:03:21,267 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 286 selfloop transitions, 30 changer transitions 10/335 dead transitions. [2024-10-11 20:03:21,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 335 transitions, 2306 flow [2024-10-11 20:03:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:03:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 20:03:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 451 transitions. [2024-10-11 20:03:21,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5965608465608465 [2024-10-11 20:03:21,269 INFO L175 Difference]: Start difference. First operand has 100 places, 76 transitions, 431 flow. Second operand 14 states and 451 transitions. [2024-10-11 20:03:21,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 335 transitions, 2306 flow [2024-10-11 20:03:26,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 335 transitions, 2216 flow, removed 42 selfloop flow, removed 3 redundant places. [2024-10-11 20:03:26,066 INFO L231 Difference]: Finished difference. Result has 120 places, 102 transitions, 776 flow [2024-10-11 20:03:26,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=776, PETRI_PLACES=120, PETRI_TRANSITIONS=102} [2024-10-11 20:03:26,067 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 58 predicate places. [2024-10-11 20:03:26,067 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 102 transitions, 776 flow [2024-10-11 20:03:26,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.714285714285715) internal successors, (234), 14 states have internal predecessors, (234), 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) [2024-10-11 20:03:26,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 20:03:26,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:03:26,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 20:03:26,068 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 20:03:26,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:03:26,068 INFO L85 PathProgramCache]: Analyzing trace with hash -619209981, now seen corresponding path program 8 times [2024-10-11 20:03:26,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:03:26,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135906700] [2024-10-11 20:03:26,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:03:26,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:03:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:03:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:03:27,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:03:27,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135906700] [2024-10-11 20:03:27,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135906700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:03:27,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:03:27,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 20:03:27,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669166670] [2024-10-11 20:03:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:03:27,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 20:03:27,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:03:27,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 20:03:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:03:27,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-11 20:03:27,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 102 transitions, 776 flow. Second operand has 14 states, 14 states have (on average 16.714285714285715) internal successors, (234), 14 states have internal predecessors, (234), 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) [2024-10-11 20:03:27,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 20:03:27,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-11 20:03:27,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand