./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --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/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:03:34,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:03:34,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:03:34,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:03:34,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:03:34,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:03:34,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:03:34,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:03:34,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:03:34,708 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:03:34,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:03:34,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:03:34,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:03:34,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:03:34,713 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:03:34,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:03:34,715 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:03:34,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:03:34,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:03:34,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:03:34,715 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:03:34,716 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:03:34,717 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:03:34,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:03:34,717 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:03:34,718 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:03:34,718 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:03:34,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:03:34,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:03:34,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:03:34,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:03:34,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:03:34,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:03:34,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:03:34,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:03:34,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:03:34,721 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:03:34,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:03:34,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:03:34,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:03:34,722 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:03:34,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:03:34,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2024-10-24 19:03:34,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:03:35,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:03:35,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:03:35,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:03:35,032 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:03:35,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:03:36,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:03:36,780 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:03:36,780 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:03:36,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f170c61f/c4a0ae8cd0b74893ac8141940ca8bb6d/FLAG7c16b9cca [2024-10-24 19:03:36,816 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f170c61f/c4a0ae8cd0b74893ac8141940ca8bb6d [2024-10-24 19:03:36,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:03:36,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:03:36,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:03:36,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:03:36,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:03:36,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:03:36" (1/1) ... [2024-10-24 19:03:36,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ac5529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:36, skipping insertion in model container [2024-10-24 19:03:36,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:03:36" (1/1) ... [2024-10-24 19:03:36,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:03:37,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:03:37,238 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:03:37,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:03:37,332 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:03:37,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37 WrapperNode [2024-10-24 19:03:37,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:03:37,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:03:37,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:03:37,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:03:37,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,373 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-10-24 19:03:37,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:03:37,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:03:37,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:03:37,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:03:37,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,402 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 19:03:37,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:03:37,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:03:37,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:03:37,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:03:37,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (1/1) ... [2024-10-24 19:03:37,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:03:37,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:03:37,465 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 19:03:37,472 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 19:03:37,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:03:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:03:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:03:37,547 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:03:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:03:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:03:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:03:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:03:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 19:03:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 19:03:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:03:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:03:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:03:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:03:37,551 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 19:03:37,732 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:03:37,734 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:03:37,890 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:03:37,891 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:03:38,003 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:03:38,003 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:03:38,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:38 BoogieIcfgContainer [2024-10-24 19:03:38,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:03:38,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:03:38,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:03:38,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:03:38,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:03:36" (1/3) ... [2024-10-24 19:03:38,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76af3d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:03:38, skipping insertion in model container [2024-10-24 19:03:38,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:37" (2/3) ... [2024-10-24 19:03:38,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76af3d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:03:38, skipping insertion in model container [2024-10-24 19:03:38,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:38" (3/3) ... [2024-10-24 19:03:38,019 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:03:38,035 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:03:38,035 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:03:38,035 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:03:38,091 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:03:38,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2024-10-24 19:03:38,159 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-10-24 19:03:38,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:38,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-10-24 19:03:38,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2024-10-24 19:03:38,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2024-10-24 19:03:38,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:03:38,186 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;@22a0f55d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:03:38,186 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:03:38,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:03:38,202 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-10-24 19:03:38,202 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:38,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:38,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:38,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:38,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1504320963, now seen corresponding path program 1 times [2024-10-24 19:03:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:38,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780313199] [2024-10-24 19:03:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:38,536 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 19:03:38,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:38,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780313199] [2024-10-24 19:03:38,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780313199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:38,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:38,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:03:38,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102728411] [2024-10-24 19:03:38,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:38,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:03:38,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:03:38,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:03:38,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 50 [2024-10-24 19:03:38,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 19:03:38,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:38,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 50 [2024-10-24 19:03:38,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:38,768 INFO L124 PetriNetUnfolderBase]: 211/497 cut-off events. [2024-10-24 19:03:38,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:38,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 497 events. 211/497 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3110 event pairs, 211 based on Foata normal form. 48/500 useless extension candidates. Maximal degree in co-relation 857. Up to 336 conditions per place. [2024-10-24 19:03:38,784 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 15 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-10-24 19:03:38,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 128 flow [2024-10-24 19:03:38,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:03:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:03:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-24 19:03:38,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2024-10-24 19:03:38,803 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 104 transitions. [2024-10-24 19:03:38,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 128 flow [2024-10-24 19:03:38,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:03:38,812 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2024-10-24 19:03:38,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-10-24 19:03:38,821 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2024-10-24 19:03:38,823 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2024-10-24 19:03:38,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 19:03:38,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:38,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:38,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:03:38,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:38,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1504322280, now seen corresponding path program 1 times [2024-10-24 19:03:38,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:38,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28055303] [2024-10-24 19:03:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:38,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:39,189 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 19:03:39,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28055303] [2024-10-24 19:03:39,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28055303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:39,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:39,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:03:39,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499588823] [2024-10-24 19:03:39,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:39,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:03:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:39,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:03:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:03:39,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:03:39,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:39,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:39,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:03:39,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:39,536 INFO L124 PetriNetUnfolderBase]: 1472/2528 cut-off events. [2024-10-24 19:03:39,536 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:03:39,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4726 conditions, 2528 events. 1472/2528 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 16212 event pairs, 340 based on Foata normal form. 81/2596 useless extension candidates. Maximal degree in co-relation 4720. Up to 1169 conditions per place. [2024-10-24 19:03:39,566 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 34 selfloop transitions, 6 changer transitions 1/60 dead transitions. [2024-10-24 19:03:39,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 218 flow [2024-10-24 19:03:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:03:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:03:39,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-10-24 19:03:39,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.695 [2024-10-24 19:03:39,569 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 4 states and 139 transitions. [2024-10-24 19:03:39,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 218 flow [2024-10-24 19:03:39,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:03:39,572 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 131 flow [2024-10-24 19:03:39,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2024-10-24 19:03:39,573 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-10-24 19:03:39,573 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 131 flow [2024-10-24 19:03:39,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:03:39,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:39,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:03:39,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:03:39,575 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:39,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:39,577 INFO L85 PathProgramCache]: Analyzing trace with hash 57290602, now seen corresponding path program 1 times [2024-10-24 19:03:39,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:39,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474913937] [2024-10-24 19:03:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:39,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:39,758 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 19:03:39,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:39,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474913937] [2024-10-24 19:03:39,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474913937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:39,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:39,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:03:39,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572311978] [2024-10-24 19:03:39,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:39,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:03:39,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:39,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:03:39,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:03:39,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:03:39,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 19:03:39,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:39,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:03:39,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:40,108 INFO L124 PetriNetUnfolderBase]: 1364/2347 cut-off events. [2024-10-24 19:03:40,108 INFO L125 PetriNetUnfolderBase]: For 718/723 co-relation queries the response was YES. [2024-10-24 19:03:40,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5439 conditions, 2347 events. 1364/2347 cut-off events. For 718/723 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 14543 event pairs, 132 based on Foata normal form. 82/2418 useless extension candidates. Maximal degree in co-relation 5430. Up to 1025 conditions per place. [2024-10-24 19:03:40,130 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 43 selfloop transitions, 10 changer transitions 1/73 dead transitions. [2024-10-24 19:03:40,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 326 flow [2024-10-24 19:03:40,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:03:40,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:03:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-10-24 19:03:40,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.704 [2024-10-24 19:03:40,132 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 131 flow. Second operand 5 states and 176 transitions. [2024-10-24 19:03:40,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 326 flow [2024-10-24 19:03:40,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 73 transitions, 315 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-24 19:03:40,138 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 183 flow [2024-10-24 19:03:40,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-24 19:03:40,140 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2024-10-24 19:03:40,141 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 183 flow [2024-10-24 19:03:40,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 19:03:40,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:40,142 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] [2024-10-24 19:03:40,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:03:40,143 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:40,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:40,144 INFO L85 PathProgramCache]: Analyzing trace with hash 858311330, now seen corresponding path program 1 times [2024-10-24 19:03:40,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:40,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191296740] [2024-10-24 19:03:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:40,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:40,287 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 19:03:40,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:40,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191296740] [2024-10-24 19:03:40,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191296740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:40,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:40,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:03:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294435161] [2024-10-24 19:03:40,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:40,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:40,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:40,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:40,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:03:40,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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 19:03:40,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:40,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:03:40,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:40,597 INFO L124 PetriNetUnfolderBase]: 1072/1831 cut-off events. [2024-10-24 19:03:40,597 INFO L125 PetriNetUnfolderBase]: For 1594/1604 co-relation queries the response was YES. [2024-10-24 19:03:40,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4869 conditions, 1831 events. 1072/1831 cut-off events. For 1594/1604 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10078 event pairs, 36 based on Foata normal form. 76/1896 useless extension candidates. Maximal degree in co-relation 4858. Up to 641 conditions per place. [2024-10-24 19:03:40,614 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 50 selfloop transitions, 14 changer transitions 1/84 dead transitions. [2024-10-24 19:03:40,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 84 transitions, 433 flow [2024-10-24 19:03:40,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:03:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:03:40,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-10-24 19:03:40,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7033333333333334 [2024-10-24 19:03:40,619 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 183 flow. Second operand 6 states and 211 transitions. [2024-10-24 19:03:40,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 84 transitions, 433 flow [2024-10-24 19:03:40,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 84 transitions, 403 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 19:03:40,628 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 233 flow [2024-10-24 19:03:40,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2024-10-24 19:03:40,629 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2024-10-24 19:03:40,631 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 233 flow [2024-10-24 19:03:40,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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 19:03:40,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:40,632 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] [2024-10-24 19:03:40,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:03:40,633 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:40,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1213745174, now seen corresponding path program 1 times [2024-10-24 19:03:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:40,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179937674] [2024-10-24 19:03:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:40,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:40,819 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 19:03:40,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:40,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179937674] [2024-10-24 19:03:40,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179937674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:40,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:40,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:03:40,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296354407] [2024-10-24 19:03:40,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:40,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:03:40,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:40,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:03:40,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:03:40,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:03:40,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 233 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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 19:03:40,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:40,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:03:40,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:41,105 INFO L124 PetriNetUnfolderBase]: 712/1159 cut-off events. [2024-10-24 19:03:41,106 INFO L125 PetriNetUnfolderBase]: For 1914/1924 co-relation queries the response was YES. [2024-10-24 19:03:41,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 1159 events. 712/1159 cut-off events. For 1914/1924 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5013 event pairs, 16 based on Foata normal form. 52/1200 useless extension candidates. Maximal degree in co-relation 3530. Up to 368 conditions per place. [2024-10-24 19:03:41,117 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 47 selfloop transitions, 18 changer transitions 1/85 dead transitions. [2024-10-24 19:03:41,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 85 transitions, 447 flow [2024-10-24 19:03:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:03:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:03:41,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-10-24 19:03:41,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742857142857143 [2024-10-24 19:03:41,120 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 233 flow. Second operand 7 states and 236 transitions. [2024-10-24 19:03:41,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 85 transitions, 447 flow [2024-10-24 19:03:41,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 85 transitions, 401 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-24 19:03:41,128 INFO L231 Difference]: Finished difference. Result has 65 places, 52 transitions, 243 flow [2024-10-24 19:03:41,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=243, PETRI_PLACES=65, PETRI_TRANSITIONS=52} [2024-10-24 19:03:41,129 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 9 predicate places. [2024-10-24 19:03:41,129 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 52 transitions, 243 flow [2024-10-24 19:03:41,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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 19:03:41,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:41,130 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] [2024-10-24 19:03:41,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:03:41,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:41,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:41,131 INFO L85 PathProgramCache]: Analyzing trace with hash 493565021, now seen corresponding path program 1 times [2024-10-24 19:03:41,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:41,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232929179] [2024-10-24 19:03:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:41,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:41,398 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 19:03:41,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:41,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232929179] [2024-10-24 19:03:41,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232929179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:41,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:41,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 19:03:41,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306460198] [2024-10-24 19:03:41,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:41,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:03:41,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:41,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:03:41,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:03:41,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:03:41,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 52 transitions, 243 flow. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 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 19:03:41,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:41,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:03:41,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:42,310 INFO L124 PetriNetUnfolderBase]: 3786/6708 cut-off events. [2024-10-24 19:03:42,310 INFO L125 PetriNetUnfolderBase]: For 4209/4339 co-relation queries the response was YES. [2024-10-24 19:03:42,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16139 conditions, 6708 events. 3786/6708 cut-off events. For 4209/4339 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 48938 event pairs, 789 based on Foata normal form. 64/6357 useless extension candidates. Maximal degree in co-relation 16126. Up to 1553 conditions per place. [2024-10-24 19:03:42,367 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 56 selfloop transitions, 11 changer transitions 44/140 dead transitions. [2024-10-24 19:03:42,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 140 transitions, 691 flow [2024-10-24 19:03:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:03:42,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:03:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 423 transitions. [2024-10-24 19:03:42,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6042857142857143 [2024-10-24 19:03:42,370 INFO L175 Difference]: Start difference. First operand has 65 places, 52 transitions, 243 flow. Second operand 14 states and 423 transitions. [2024-10-24 19:03:42,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 140 transitions, 691 flow [2024-10-24 19:03:42,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 140 transitions, 555 flow, removed 37 selfloop flow, removed 10 redundant places. [2024-10-24 19:03:42,443 INFO L231 Difference]: Finished difference. Result has 81 places, 61 transitions, 243 flow [2024-10-24 19:03:42,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=243, PETRI_PLACES=81, PETRI_TRANSITIONS=61} [2024-10-24 19:03:42,445 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 25 predicate places. [2024-10-24 19:03:42,446 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 61 transitions, 243 flow [2024-10-24 19:03:42,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 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 19:03:42,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:42,446 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] [2024-10-24 19:03:42,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:03:42,447 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:42,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:42,448 INFO L85 PathProgramCache]: Analyzing trace with hash 814472793, now seen corresponding path program 2 times [2024-10-24 19:03:42,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:42,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143476805] [2024-10-24 19:03:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:42,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:42,650 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 19:03:42,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:42,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143476805] [2024-10-24 19:03:42,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143476805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:42,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:42,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:03:42,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305217524] [2024-10-24 19:03:42,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:42,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:42,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:42,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:42,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:42,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-10-24 19:03:42,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 61 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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 19:03:42,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:42,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-10-24 19:03:42,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:43,463 INFO L124 PetriNetUnfolderBase]: 3566/6619 cut-off events. [2024-10-24 19:03:43,463 INFO L125 PetriNetUnfolderBase]: For 2263/2372 co-relation queries the response was YES. [2024-10-24 19:03:43,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14506 conditions, 6619 events. 3566/6619 cut-off events. For 2263/2372 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 52654 event pairs, 1220 based on Foata normal form. 34/5834 useless extension candidates. Maximal degree in co-relation 14485. Up to 2273 conditions per place. [2024-10-24 19:03:43,515 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 23 selfloop transitions, 3 changer transitions 30/89 dead transitions. [2024-10-24 19:03:43,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 89 transitions, 445 flow [2024-10-24 19:03:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:03:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:03:43,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 199 transitions. [2024-10-24 19:03:43,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6633333333333333 [2024-10-24 19:03:43,517 INFO L175 Difference]: Start difference. First operand has 81 places, 61 transitions, 243 flow. Second operand 6 states and 199 transitions. [2024-10-24 19:03:43,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 89 transitions, 445 flow [2024-10-24 19:03:43,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 89 transitions, 421 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-10-24 19:03:43,532 INFO L231 Difference]: Finished difference. Result has 73 places, 53 transitions, 199 flow [2024-10-24 19:03:43,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=73, PETRI_TRANSITIONS=53} [2024-10-24 19:03:43,533 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-24 19:03:43,534 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 199 flow [2024-10-24 19:03:43,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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 19:03:43,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:03:43,534 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] [2024-10-24 19:03:43,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:03:43,535 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:03:43,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:03:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1482267, now seen corresponding path program 3 times [2024-10-24 19:03:43,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:03:43,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278456121] [2024-10-24 19:03:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:03:43,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:03:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:03:43,708 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 19:03:43,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:03:43,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278456121] [2024-10-24 19:03:43,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278456121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:03:43,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:03:43,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:03:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685861076] [2024-10-24 19:03:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:03:43,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:03:43,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:03:43,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:03:43,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:03:43,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-10-24 19:03:43,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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 19:03:43,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:03:43,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-10-24 19:03:43,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:03:43,986 INFO L124 PetriNetUnfolderBase]: 685/1285 cut-off events. [2024-10-24 19:03:43,987 INFO L125 PetriNetUnfolderBase]: For 464/514 co-relation queries the response was YES. [2024-10-24 19:03:43,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2758 conditions, 1285 events. 685/1285 cut-off events. For 464/514 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7263 event pairs, 241 based on Foata normal form. 16/1154 useless extension candidates. Maximal degree in co-relation 2747. Up to 755 conditions per place. [2024-10-24 19:03:43,993 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-10-24 19:03:43,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 311 flow [2024-10-24 19:03:43,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:03:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:03:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2024-10-24 19:03:43,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6233333333333333 [2024-10-24 19:03:43,995 INFO L175 Difference]: Start difference. First operand has 73 places, 53 transitions, 199 flow. Second operand 6 states and 187 transitions. [2024-10-24 19:03:43,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 311 flow [2024-10-24 19:03:43,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 285 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-10-24 19:03:43,997 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-10-24 19:03:43,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-10-24 19:03:44,000 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-10-24 19:03:44,000 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-10-24 19:03:44,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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 19:03:44,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-10-24 19:03:44,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-10-24 19:03:44,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-10-24 19:03:44,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-24 19:03:44,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-24 19:03:44,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-24 19:03:44,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:03:44,011 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2024-10-24 19:03:44,015 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:03:44,015 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:03:44,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:03:44 BasicIcfg [2024-10-24 19:03:44,027 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:03:44,027 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:03:44,027 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:03:44,028 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:03:44,028 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:38" (3/4) ... [2024-10-24 19:03:44,031 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:03:44,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 19:03:44,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 19:03:44,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 19:03:44,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-24 19:03:44,042 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-10-24 19:03:44,043 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-24 19:03:44,043 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 19:03:44,043 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 19:03:44,141 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:03:44,142 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:03:44,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:03:44,143 INFO L158 Benchmark]: Toolchain (without parser) took 7321.27ms. Allocated memory was 153.1MB in the beginning and 360.7MB in the end (delta: 207.6MB). Free memory was 95.7MB in the beginning and 208.7MB in the end (delta: -112.9MB). Peak memory consumption was 96.8MB. Max. memory is 16.1GB. [2024-10-24 19:03:44,143 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 153.1MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:03:44,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.67ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 72.3MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 19:03:44,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.75ms. Allocated memory is still 153.1MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:03:44,144 INFO L158 Benchmark]: Boogie Preprocessor took 45.93ms. Allocated memory is still 153.1MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:03:44,145 INFO L158 Benchmark]: RCFGBuilder took 582.82ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 68.1MB in the beginning and 155.8MB in the end (delta: -87.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 19:03:44,145 INFO L158 Benchmark]: TraceAbstraction took 6016.37ms. Allocated memory was 201.3MB in the beginning and 360.7MB in the end (delta: 159.4MB). Free memory was 155.8MB in the beginning and 213.9MB in the end (delta: -58.1MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2024-10-24 19:03:44,145 INFO L158 Benchmark]: Witness Printer took 114.79ms. Allocated memory is still 360.7MB. Free memory was 213.9MB in the beginning and 208.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 19:03:44,147 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 153.1MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.67ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 72.3MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.75ms. Allocated memory is still 153.1MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.93ms. Allocated memory is still 153.1MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.82ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 68.1MB in the beginning and 155.8MB in the end (delta: -87.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6016.37ms. Allocated memory was 201.3MB in the beginning and 360.7MB in the end (delta: 159.4MB). Free memory was 155.8MB in the beginning and 213.9MB in the end (delta: -58.1MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. * Witness Printer took 114.79ms. Allocated memory is still 360.7MB. Free memory was 213.9MB in the beginning and 208.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 784]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 430 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 789 IncrementalHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 26 mSDtfsCounter, 789 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=243occurred in iteration=5, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 685 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 19:03:44,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE