./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 4a390ef5 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/weaver/test-easy10.wvr.c -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 58ff882a2a27d6746f141646b2befb8bb2c361fcab13fbe9966095432ec78b12 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:27:08,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:27:09,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:27:09,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:27:09,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:27:09,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:27:09,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:27:09,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:27:09,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:27:09,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:27:09,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:27:09,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:27:09,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:27:09,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:27:09,047 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:27:09,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:27:09,048 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:27:09,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:27:09,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:27:09,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:27:09,063 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:27:09,063 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:27:09,063 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:27:09,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:27:09,065 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:27:09,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:27:09,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:27:09,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:27:09,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:27:09,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:27:09,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:27:09,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:27:09,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:27:09,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:27:09,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:27:09,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:27:09,070 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:27:09,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:27:09,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:27:09,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:27:09,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:27:09,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:27:09,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58ff882a2a27d6746f141646b2befb8bb2c361fcab13fbe9966095432ec78b12 [2024-10-24 19:27:09,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:27:09,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:27:09,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:27:09,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:27:09,380 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:27:09,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-10-24 19:27:10,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:27:11,047 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:27:11,048 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-10-24 19:27:11,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1d54a7e/0a0f3aa7c1954dcfbde514458b4556f8/FLAGa6c1e0b85 [2024-10-24 19:27:11,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1d54a7e/0a0f3aa7c1954dcfbde514458b4556f8 [2024-10-24 19:27:11,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:27:11,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:27:11,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:27:11,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:27:11,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:27:11,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab763fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11, skipping insertion in model container [2024-10-24 19:27:11,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:27:11,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:27:11,704 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:27:11,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:27:11,752 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:27:11,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11 WrapperNode [2024-10-24 19:27:11,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:27:11,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:27:11,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:27:11,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:27:11,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,798 INFO L138 Inliner]: procedures = 22, calls = 65, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 173 [2024-10-24 19:27:11,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:27:11,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:27:11,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:27:11,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:27:11,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,835 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]. [2024-10-24 19:27:11,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:27:11,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:27:11,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:27:11,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:27:11,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (1/1) ... [2024-10-24 19:27:11,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:27:11,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:11,886 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) [2024-10-24 19:27:11,888 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 [2024-10-24 19:27:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:27:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 19:27:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 19:27:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 19:27:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 19:27:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 19:27:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 19:27:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-24 19:27:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-24 19:27:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:27:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:27:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:27:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:27:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:27:11,929 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:27:12,026 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:27:12,028 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:27:12,267 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:27:12,267 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:27:12,496 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:27:12,496 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:27:12,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:27:12 BoogieIcfgContainer [2024-10-24 19:27:12,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:27:12,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:27:12,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:27:12,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:27:12,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:27:11" (1/3) ... [2024-10-24 19:27:12,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62967634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:27:12, skipping insertion in model container [2024-10-24 19:27:12,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:11" (2/3) ... [2024-10-24 19:27:12,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62967634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:27:12, skipping insertion in model container [2024-10-24 19:27:12,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:27:12" (3/3) ... [2024-10-24 19:27:12,507 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-10-24 19:27:12,521 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:27:12,521 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:27:12,521 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:27:12,580 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 19:27:12,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 54 transitions, 136 flow [2024-10-24 19:27:12,661 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2024-10-24 19:27:12,661 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 19:27:12,665 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. [2024-10-24 19:27:12,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 54 transitions, 136 flow [2024-10-24 19:27:12,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 49 transitions, 122 flow [2024-10-24 19:27:12,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:27:12,683 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;@2ea190b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:27:12,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:27:12,705 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:27:12,705 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2024-10-24 19:27:12,705 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 19:27:12,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:12,706 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] [2024-10-24 19:27:12,707 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)] === [2024-10-24 19:27:12,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:12,714 INFO L85 PathProgramCache]: Analyzing trace with hash 192213605, now seen corresponding path program 1 times [2024-10-24 19:27:12,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:12,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154594299] [2024-10-24 19:27:12,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:12,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:13,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:13,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154594299] [2024-10-24 19:27:13,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154594299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:13,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:13,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:27:13,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131736353] [2024-10-24 19:27:13,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:13,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:27:13,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:13,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:27:13,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:27:13,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-24 19:27:13,362 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) [2024-10-24 19:27:13,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:13,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-24 19:27:13,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:13,635 INFO L124 PetriNetUnfolderBase]: 637/1259 cut-off events. [2024-10-24 19:27:13,635 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-10-24 19:27:13,646 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. [2024-10-24 19:27:13,693 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 30 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-10-24 19:27:13,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 209 flow [2024-10-24 19:27:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:27:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:27:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-10-24 19:27:13,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7469135802469136 [2024-10-24 19:27:13,717 INFO L175 Difference]: Start difference. First operand has 62 places, 49 transitions, 122 flow. Second operand 3 states and 121 transitions. [2024-10-24 19:27:13,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 209 flow [2024-10-24 19:27:13,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 56 transitions, 187 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-24 19:27:13,727 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 110 flow [2024-10-24 19:27:13,731 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} [2024-10-24 19:27:13,735 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -7 predicate places. [2024-10-24 19:27:13,736 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 110 flow [2024-10-24 19:27:13,736 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) [2024-10-24 19:27:13,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:13,737 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] [2024-10-24 19:27:13,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:27:13,738 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)] === [2024-10-24 19:27:13,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:13,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2108424979, now seen corresponding path program 2 times [2024-10-24 19:27:13,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:13,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140188843] [2024-10-24 19:27:13,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:13,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:13,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:13,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140188843] [2024-10-24 19:27:13,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140188843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:13,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:13,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:27:13,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833008495] [2024-10-24 19:27:13,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:13,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:27:13,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:13,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:27:13,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:27:13,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-24 19:27:13,939 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) [2024-10-24 19:27:13,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:13,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-24 19:27:13,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:14,103 INFO L124 PetriNetUnfolderBase]: 597/1161 cut-off events. [2024-10-24 19:27:14,104 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-10-24 19:27:14,109 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. [2024-10-24 19:27:14,116 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 30 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-10-24 19:27:14,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 196 flow [2024-10-24 19:27:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:27:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:27:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-10-24 19:27:14,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-10-24 19:27:14,120 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 110 flow. Second operand 3 states and 120 transitions. [2024-10-24 19:27:14,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 196 flow [2024-10-24 19:27:14,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:27:14,124 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 114 flow [2024-10-24 19:27:14,125 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} [2024-10-24 19:27:14,125 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-24 19:27:14,126 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 114 flow [2024-10-24 19:27:14,126 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) [2024-10-24 19:27:14,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:14,127 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] [2024-10-24 19:27:14,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:27:14,127 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)] === [2024-10-24 19:27:14,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:14,128 INFO L85 PathProgramCache]: Analyzing trace with hash -745519875, now seen corresponding path program 3 times [2024-10-24 19:27:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:14,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300033076] [2024-10-24 19:27:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:14,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:14,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:14,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300033076] [2024-10-24 19:27:14,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300033076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:14,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:14,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:27:14,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675879397] [2024-10-24 19:27:14,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:14,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:27:14,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:14,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:27:14,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:27:14,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-24 19:27:14,336 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) [2024-10-24 19:27:14,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:14,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-24 19:27:14,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:14,493 INFO L124 PetriNetUnfolderBase]: 599/1165 cut-off events. [2024-10-24 19:27:14,495 INFO L125 PetriNetUnfolderBase]: For 164/168 co-relation queries the response was YES. [2024-10-24 19:27:14,498 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. [2024-10-24 19:27:14,504 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 32 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-10-24 19:27:14,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 58 transitions, 209 flow [2024-10-24 19:27:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:27:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:27:14,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-10-24 19:27:14,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7530864197530864 [2024-10-24 19:27:14,508 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 114 flow. Second operand 3 states and 122 transitions. [2024-10-24 19:27:14,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 58 transitions, 209 flow [2024-10-24 19:27:14,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 205 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:27:14,510 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 118 flow [2024-10-24 19:27:14,513 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} [2024-10-24 19:27:14,513 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -5 predicate places. [2024-10-24 19:27:14,514 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 118 flow [2024-10-24 19:27:14,514 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) [2024-10-24 19:27:14,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:14,515 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] [2024-10-24 19:27:14,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:27:14,515 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)] === [2024-10-24 19:27:14,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:14,516 INFO L85 PathProgramCache]: Analyzing trace with hash 689260857, now seen corresponding path program 4 times [2024-10-24 19:27:14,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218131012] [2024-10-24 19:27:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:16,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:16,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218131012] [2024-10-24 19:27:16,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218131012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:16,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:16,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 19:27:16,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663587358] [2024-10-24 19:27:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:16,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 19:27:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 19:27:16,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-24 19:27:17,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-24 19:27:17,262 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) [2024-10-24 19:27:17,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:17,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-24 19:27:17,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:21,134 INFO L124 PetriNetUnfolderBase]: 22460/32237 cut-off events. [2024-10-24 19:27:21,135 INFO L125 PetriNetUnfolderBase]: For 4420/4420 co-relation queries the response was YES. [2024-10-24 19:27:21,197 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. [2024-10-24 19:27:21,351 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 223 selfloop transitions, 16 changer transitions 18/266 dead transitions. [2024-10-24 19:27:21,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 266 transitions, 1149 flow [2024-10-24 19:27:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 19:27:21,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 19:27:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 468 transitions. [2024-10-24 19:27:21,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-10-24 19:27:21,355 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 118 flow. Second operand 15 states and 468 transitions. [2024-10-24 19:27:21,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 266 transitions, 1149 flow [2024-10-24 19:27:21,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 266 transitions, 1145 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:27:21,379 INFO L231 Difference]: Finished difference. Result has 82 places, 63 transitions, 244 flow [2024-10-24 19:27:21,381 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} [2024-10-24 19:27:21,382 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2024-10-24 19:27:21,383 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 63 transitions, 244 flow [2024-10-24 19:27:21,384 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) [2024-10-24 19:27:21,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:21,384 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] [2024-10-24 19:27:21,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:27:21,385 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)] === [2024-10-24 19:27:21,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:21,386 INFO L85 PathProgramCache]: Analyzing trace with hash 59405345, now seen corresponding path program 5 times [2024-10-24 19:27:21,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:21,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922038847] [2024-10-24 19:27:21,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:21,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:21,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:21,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922038847] [2024-10-24 19:27:21,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922038847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:21,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:21,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:27:21,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311938631] [2024-10-24 19:27:21,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:21,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:27:21,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:21,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:27:21,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:27:21,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-10-24 19:27:21,515 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) [2024-10-24 19:27:21,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:21,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-10-24 19:27:21,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:22,051 INFO L124 PetriNetUnfolderBase]: 2485/4727 cut-off events. [2024-10-24 19:27:22,051 INFO L125 PetriNetUnfolderBase]: For 1417/1635 co-relation queries the response was YES. [2024-10-24 19:27:22,067 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. [2024-10-24 19:27:22,083 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 28 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-10-24 19:27:22,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 66 transitions, 302 flow [2024-10-24 19:27:22,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:27:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:27:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-24 19:27:22,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7283950617283951 [2024-10-24 19:27:22,085 INFO L175 Difference]: Start difference. First operand has 82 places, 63 transitions, 244 flow. Second operand 3 states and 118 transitions. [2024-10-24 19:27:22,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 66 transitions, 302 flow [2024-10-24 19:27:22,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 66 transitions, 292 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-24 19:27:22,151 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 220 flow [2024-10-24 19:27:22,151 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} [2024-10-24 19:27:22,152 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-10-24 19:27:22,152 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 220 flow [2024-10-24 19:27:22,152 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) [2024-10-24 19:27:22,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:22,152 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] [2024-10-24 19:27:22,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:27:22,153 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)] === [2024-10-24 19:27:22,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:22,154 INFO L85 PathProgramCache]: Analyzing trace with hash -191168531, now seen corresponding path program 6 times [2024-10-24 19:27:22,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:22,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977494416] [2024-10-24 19:27:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:22,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:23,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:23,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977494416] [2024-10-24 19:27:23,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977494416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:23,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:23,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 19:27:23,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992957392] [2024-10-24 19:27:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:23,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 19:27:23,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:23,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 19:27:23,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-10-24 19:27:23,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-24 19:27:23,725 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) [2024-10-24 19:27:23,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:23,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-24 19:27:23,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:29,269 INFO L124 PetriNetUnfolderBase]: 35663/51251 cut-off events. [2024-10-24 19:27:29,270 INFO L125 PetriNetUnfolderBase]: For 31790/31790 co-relation queries the response was YES. [2024-10-24 19:27:29,447 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. [2024-10-24 19:27:29,629 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 248 selfloop transitions, 24 changer transitions 18/299 dead transitions. [2024-10-24 19:27:29,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 299 transitions, 1595 flow [2024-10-24 19:27:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 446 transitions. [2024-10-24 19:27:29,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58994708994709 [2024-10-24 19:27:29,632 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 220 flow. Second operand 14 states and 446 transitions. [2024-10-24 19:27:29,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 299 transitions, 1595 flow [2024-10-24 19:27:30,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 299 transitions, 1591 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:27:30,313 INFO L231 Difference]: Finished difference. Result has 100 places, 76 transitions, 431 flow [2024-10-24 19:27:30,314 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} [2024-10-24 19:27:30,315 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 38 predicate places. [2024-10-24 19:27:30,315 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 76 transitions, 431 flow [2024-10-24 19:27:30,315 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) [2024-10-24 19:27:30,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:30,316 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] [2024-10-24 19:27:30,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:27:30,316 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)] === [2024-10-24 19:27:30,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:30,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1128953787, now seen corresponding path program 7 times [2024-10-24 19:27:30,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:30,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13316800] [2024-10-24 19:27:30,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:30,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:31,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:31,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13316800] [2024-10-24 19:27:31,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13316800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:31,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:31,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 19:27:31,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26245754] [2024-10-24 19:27:31,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:31,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 19:27:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:31,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 19:27:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-10-24 19:27:32,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-24 19:27:32,041 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) [2024-10-24 19:27:32,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:32,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-24 19:27:32,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:42,965 INFO L124 PetriNetUnfolderBase]: 79316/114538 cut-off events. [2024-10-24 19:27:42,967 INFO L125 PetriNetUnfolderBase]: For 200857/200857 co-relation queries the response was YES. [2024-10-24 19:27:43,602 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. [2024-10-24 19:27:43,965 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 286 selfloop transitions, 30 changer transitions 10/335 dead transitions. [2024-10-24 19:27:43,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 335 transitions, 2306 flow [2024-10-24 19:27:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:43,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 451 transitions. [2024-10-24 19:27:43,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5965608465608465 [2024-10-24 19:27:43,967 INFO L175 Difference]: Start difference. First operand has 100 places, 76 transitions, 431 flow. Second operand 14 states and 451 transitions. [2024-10-24 19:27:43,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 335 transitions, 2306 flow [2024-10-24 19:27:48,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 335 transitions, 2216 flow, removed 42 selfloop flow, removed 3 redundant places. [2024-10-24 19:27:48,840 INFO L231 Difference]: Finished difference. Result has 120 places, 102 transitions, 776 flow [2024-10-24 19:27:48,840 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} [2024-10-24 19:27:48,841 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 58 predicate places. [2024-10-24 19:27:48,841 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 102 transitions, 776 flow [2024-10-24 19:27:48,842 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) [2024-10-24 19:27:48,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:48,842 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] [2024-10-24 19:27:48,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:27:48,842 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)] === [2024-10-24 19:27:48,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash -619209981, now seen corresponding path program 8 times [2024-10-24 19:27:48,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:48,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731114815] [2024-10-24 19:27:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:48,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:50,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:50,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731114815] [2024-10-24 19:27:50,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731114815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:50,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:50,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 19:27:50,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311021577] [2024-10-24 19:27:50,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:50,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 19:27:50,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:50,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 19:27:50,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-24 19:27:50,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-10-24 19:27:50,476 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) [2024-10-24 19:27:50,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:50,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-10-24 19:27:50,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:28:09,824 INFO L124 PetriNetUnfolderBase]: 132490/194054 cut-off events. [2024-10-24 19:28:09,825 INFO L125 PetriNetUnfolderBase]: For 521158/521158 co-relation queries the response was YES. [2024-10-24 19:28:11,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647810 conditions, 194054 events. 132490/194054 cut-off events. For 521158/521158 co-relation queries the response was YES. Maximal size of possible extension queue 6271. Compared 1571267 event pairs, 29298 based on Foata normal form. 1/194049 useless extension candidates. Maximal degree in co-relation 646844. Up to 52544 conditions per place. [2024-10-24 19:28:11,873 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 364 selfloop transitions, 45 changer transitions 10/428 dead transitions. [2024-10-24 19:28:11,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 428 transitions, 3845 flow [2024-10-24 19:28:11,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:28:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:28:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 443 transitions. [2024-10-24 19:28:11,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5859788359788359 [2024-10-24 19:28:11,876 INFO L175 Difference]: Start difference. First operand has 120 places, 102 transitions, 776 flow. Second operand 14 states and 443 transitions. [2024-10-24 19:28:11,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 428 transitions, 3845 flow