./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix021.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-wmm/mix021.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 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:52:16,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:52:16,708 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:52:16,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:52:16,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:52:16,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:52:16,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:52:16,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:52:16,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:52:16,754 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:52:16,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:52:16,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:52:16,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:52:16,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:52:16,756 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:52:16,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:52:16,756 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:52:16,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:52:16,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:52:16,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:52:16,760 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:52:16,760 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:52:16,760 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:52:16,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:52:16,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:52:16,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:52:16,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:52:16,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:52:16,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:52:16,762 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:52:16,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:52:16,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:52:16,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:52:16,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:52:16,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:52:16,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:52:16,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:52:16,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:52:16,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:52:16,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:52:16,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:52:16,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:52:16,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db [2024-11-10 17:52:17,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:52:17,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:52:17,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:52:17,079 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:52:17,080 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:52:17,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-11-10 17:52:18,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:52:18,812 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:52:18,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-11-10 17:52:18,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73b8f7aa/b3ecdf4ca2af440cbeeccff7b66d5d65/FLAGce559159f [2024-11-10 17:52:18,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73b8f7aa/b3ecdf4ca2af440cbeeccff7b66d5d65 [2024-11-10 17:52:18,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:52:18,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:52:18,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:52:18,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:52:18,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:52:18,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:52:18" (1/1) ... [2024-11-10 17:52:18,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57500d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:18, skipping insertion in model container [2024-11-10 17:52:18,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:52:18" (1/1) ... [2024-11-10 17:52:18,914 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:52:19,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:52:19,323 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:52:19,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:52:19,432 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:52:19,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19 WrapperNode [2024-11-10 17:52:19,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:52:19,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:52:19,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:52:19,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:52:19,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,498 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 153 [2024-11-10 17:52:19,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:52:19,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:52:19,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:52:19,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:52:19,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,539 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]. [2024-11-10 17:52:19,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:52:19,575 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:52:19,575 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:52:19,575 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:52:19,577 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (1/1) ... [2024-11-10 17:52:19,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:52:19,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:52:19,614 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) [2024-11-10 17:52:19,618 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 [2024-11-10 17:52:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 17:52:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:52:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 17:52:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 17:52:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 17:52:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 17:52:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 17:52:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 17:52:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 17:52:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 17:52:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:52:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 17:52:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:52:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:52:19,699 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 17:52:19,873 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:52:19,876 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:52:20,277 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 17:52:20,277 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:52:20,511 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:52:20,514 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 17:52:20,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:52:20 BoogieIcfgContainer [2024-11-10 17:52:20,515 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:52:20,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:52:20,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:52:20,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:52:20,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:52:18" (1/3) ... [2024-11-10 17:52:20,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b566a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:52:20, skipping insertion in model container [2024-11-10 17:52:20,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:19" (2/3) ... [2024-11-10 17:52:20,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b566a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:52:20, skipping insertion in model container [2024-11-10 17:52:20,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:52:20" (3/3) ... [2024-11-10 17:52:20,525 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021.opt.i [2024-11-10 17:52:20,542 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:52:20,542 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-10 17:52:20,542 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 17:52:20,609 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:52:20,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-10 17:52:20,690 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-10 17:52:20,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:20,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-11-10 17:52:20,696 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-10 17:52:20,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-10 17:52:20,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:52:20,716 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;@58f3f72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:52:20,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 17:52:20,724 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:52:20,724 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-10 17:52:20,725 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:20,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:20,725 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:20,726 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:20,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:20,731 INFO L85 PathProgramCache]: Analyzing trace with hash 462503178, now seen corresponding path program 1 times [2024-11-10 17:52:20,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:20,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234286839] [2024-11-10 17:52:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:20,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:21,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:21,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234286839] [2024-11-10 17:52:21,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234286839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:21,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:21,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:52:21,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893118816] [2024-11-10 17:52:21,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:21,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:52:21,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:21,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:52:21,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:52:21,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:21,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-10 17:52:21,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:21,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:21,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:28,129 INFO L124 PetriNetUnfolderBase]: 50459/66999 cut-off events. [2024-11-10 17:52:28,129 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-10 17:52:28,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133619 conditions, 66999 events. 50459/66999 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 1891. Compared 395824 event pairs, 6395 based on Foata normal form. 3024/69996 useless extension candidates. Maximal degree in co-relation 133607. Up to 57025 conditions per place. [2024-11-10 17:52:28,610 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 58 selfloop transitions, 2 changer transitions 2/70 dead transitions. [2024-11-10 17:52:28,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 70 transitions, 276 flow [2024-11-10 17:52:28,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:52:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:52:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-10 17:52:28,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2024-11-10 17:52:28,625 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 103 transitions. [2024-11-10 17:52:28,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 70 transitions, 276 flow [2024-11-10 17:52:28,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:28,639 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-10 17:52:28,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-11-10 17:52:28,647 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-10 17:52:28,647 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-10 17:52:28,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-10 17:52:28,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:28,648 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:28,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:52:28,649 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:28,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:28,651 INFO L85 PathProgramCache]: Analyzing trace with hash 727746306, now seen corresponding path program 1 times [2024-11-10 17:52:28,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:28,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197594698] [2024-11-10 17:52:28,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:28,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:28,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:28,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197594698] [2024-11-10 17:52:28,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197594698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:28,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:28,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:52:28,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970317151] [2024-11-10 17:52:28,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:28,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:52:28,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:28,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:52:28,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:52:28,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 17:52:28,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-10 17:52:28,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:28,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 17:52:28,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:33,467 INFO L124 PetriNetUnfolderBase]: 45383/63867 cut-off events. [2024-11-10 17:52:33,468 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2024-11-10 17:52:33,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125841 conditions, 63867 events. 45383/63867 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 420606 event pairs, 45383 based on Foata normal form. 1512/65136 useless extension candidates. Maximal degree in co-relation 125831. Up to 59508 conditions per place. [2024-11-10 17:52:33,819 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-10 17:52:33,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2024-11-10 17:52:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:52:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:52:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-10 17:52:33,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2024-11-10 17:52:33,821 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2024-11-10 17:52:33,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2024-11-10 17:52:33,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 17:52:33,838 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-10 17:52:33,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-10 17:52:33,839 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-10 17:52:33,839 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-10 17:52:33,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-10 17:52:33,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:33,840 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:33,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:52:33,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:33,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:33,841 INFO L85 PathProgramCache]: Analyzing trace with hash 727747039, now seen corresponding path program 1 times [2024-11-10 17:52:33,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:33,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504362940] [2024-11-10 17:52:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:33,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:34,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:34,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504362940] [2024-11-10 17:52:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504362940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:34,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:34,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:52:34,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285139229] [2024-11-10 17:52:34,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:34,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:52:34,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:34,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:52:34,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:52:34,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:34,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-10 17:52:34,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:34,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:34,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:37,391 INFO L124 PetriNetUnfolderBase]: 36511/52325 cut-off events. [2024-11-10 17:52:37,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:37,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101563 conditions, 52325 events. 36511/52325 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1644. Compared 353207 event pairs, 4407 based on Foata normal form. 1512/53818 useless extension candidates. Maximal degree in co-relation 101557. Up to 29929 conditions per place. [2024-11-10 17:52:37,662 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 75 selfloop transitions, 6 changer transitions 1/89 dead transitions. [2024-11-10 17:52:37,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 89 transitions, 358 flow [2024-11-10 17:52:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:52:37,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 17:52:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-10 17:52:37,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-10 17:52:37,664 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 4 states and 132 transitions. [2024-11-10 17:52:37,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 89 transitions, 358 flow [2024-11-10 17:52:37,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 89 transitions, 357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:52:37,668 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 137 flow [2024-11-10 17:52:37,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2024-11-10 17:52:37,670 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-11-10 17:52:37,670 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 137 flow [2024-11-10 17:52:37,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-10 17:52:37,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:37,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:37,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:52:37,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:37,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash -252942245, now seen corresponding path program 1 times [2024-11-10 17:52:37,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:37,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458654571] [2024-11-10 17:52:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:37,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:37,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:37,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458654571] [2024-11-10 17:52:37,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458654571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:37,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:37,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:52:37,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030008130] [2024-11-10 17:52:37,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:37,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:52:37,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:37,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:52:37,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:52:37,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:37,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-10 17:52:37,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:37,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:37,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:40,360 INFO L124 PetriNetUnfolderBase]: 23071/33093 cut-off events. [2024-11-10 17:52:40,360 INFO L125 PetriNetUnfolderBase]: For 6328/6328 co-relation queries the response was YES. [2024-11-10 17:52:40,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73470 conditions, 33093 events. 23071/33093 cut-off events. For 6328/6328 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 206426 event pairs, 2563 based on Foata normal form. 1192/34266 useless extension candidates. Maximal degree in co-relation 73461. Up to 13513 conditions per place. [2024-11-10 17:52:40,558 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 97 selfloop transitions, 10 changer transitions 1/115 dead transitions. [2024-11-10 17:52:40,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 115 transitions, 518 flow [2024-11-10 17:52:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:52:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 17:52:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-10 17:52:40,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-10 17:52:40,560 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 137 flow. Second operand 5 states and 170 transitions. [2024-11-10 17:52:40,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 115 transitions, 518 flow [2024-11-10 17:52:40,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 115 transitions, 507 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 17:52:40,578 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 189 flow [2024-11-10 17:52:40,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-11-10 17:52:40,580 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-11-10 17:52:40,581 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 189 flow [2024-11-10 17:52:40,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-10 17:52:40,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:40,583 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] [2024-11-10 17:52:40,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:52:40,583 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:40,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:40,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1915303561, now seen corresponding path program 1 times [2024-11-10 17:52:40,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:40,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120905587] [2024-11-10 17:52:40,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:40,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:40,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:40,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120905587] [2024-11-10 17:52:40,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120905587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:40,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:40,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:52:40,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790046179] [2024-11-10 17:52:40,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:40,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:40,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:40,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:40,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:40,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:40,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2024-11-10 17:52:40,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:40,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:40,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:42,257 INFO L124 PetriNetUnfolderBase]: 13599/19125 cut-off events. [2024-11-10 17:52:42,258 INFO L125 PetriNetUnfolderBase]: For 11698/11698 co-relation queries the response was YES. [2024-11-10 17:52:42,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46830 conditions, 19125 events. 13599/19125 cut-off events. For 11698/11698 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 104471 event pairs, 2215 based on Foata normal form. 584/19690 useless extension candidates. Maximal degree in co-relation 46819. Up to 5388 conditions per place. [2024-11-10 17:52:42,367 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 117 selfloop transitions, 14 changer transitions 1/139 dead transitions. [2024-11-10 17:52:42,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 139 transitions, 677 flow [2024-11-10 17:52:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:52:42,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:52:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-11-10 17:52:42,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2024-11-10 17:52:42,370 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 189 flow. Second operand 6 states and 206 transitions. [2024-11-10 17:52:42,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 139 transitions, 677 flow [2024-11-10 17:52:42,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 139 transitions, 647 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:42,529 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 239 flow [2024-11-10 17:52:42,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-10 17:52:42,532 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2024-11-10 17:52:42,532 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 239 flow [2024-11-10 17:52:42,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2024-11-10 17:52:42,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:42,533 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] [2024-11-10 17:52:42,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 17:52:42,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:42,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:42,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1294864783, now seen corresponding path program 1 times [2024-11-10 17:52:42,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:42,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110467518] [2024-11-10 17:52:42,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:42,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:42,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:42,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110467518] [2024-11-10 17:52:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110467518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:42,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:42,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:52:42,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796586730] [2024-11-10 17:52:42,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:42,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:52:42,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:42,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:52:42,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:52:42,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:42,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-11-10 17:52:42,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:42,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:42,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:44,096 INFO L124 PetriNetUnfolderBase]: 10399/14269 cut-off events. [2024-11-10 17:52:44,096 INFO L125 PetriNetUnfolderBase]: For 11290/11290 co-relation queries the response was YES. [2024-11-10 17:52:44,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36439 conditions, 14269 events. 10399/14269 cut-off events. For 11290/11290 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 73518 event pairs, 2043 based on Foata normal form. 152/14402 useless extension candidates. Maximal degree in co-relation 36427. Up to 5376 conditions per place. [2024-11-10 17:52:44,156 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 101 selfloop transitions, 18 changer transitions 1/127 dead transitions. [2024-11-10 17:52:44,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 127 transitions, 639 flow [2024-11-10 17:52:44,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 17:52:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 17:52:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2024-11-10 17:52:44,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.544973544973545 [2024-11-10 17:52:44,158 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 239 flow. Second operand 7 states and 206 transitions. [2024-11-10 17:52:44,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 127 transitions, 639 flow [2024-11-10 17:52:44,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 127 transitions, 593 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-10 17:52:44,314 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 249 flow [2024-11-10 17:52:44,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-11-10 17:52:44,315 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2024-11-10 17:52:44,315 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 249 flow [2024-11-10 17:52:44,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-11-10 17:52:44,316 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:44,316 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] [2024-11-10 17:52:44,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 17:52:44,316 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:44,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:44,317 INFO L85 PathProgramCache]: Analyzing trace with hash 88731111, now seen corresponding path program 1 times [2024-11-10 17:52:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:44,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062880173] [2024-11-10 17:52:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:44,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:45,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:45,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062880173] [2024-11-10 17:52:45,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062880173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:45,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:45,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:52:45,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365990219] [2024-11-10 17:52:45,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:45,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:45,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:45,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:45,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:45,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:45,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:45,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:45,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:45,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:46,786 INFO L124 PetriNetUnfolderBase]: 18083/24723 cut-off events. [2024-11-10 17:52:46,787 INFO L125 PetriNetUnfolderBase]: For 19022/19022 co-relation queries the response was YES. [2024-11-10 17:52:46,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63010 conditions, 24723 events. 18083/24723 cut-off events. For 19022/19022 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 135987 event pairs, 2305 based on Foata normal form. 16/24729 useless extension candidates. Maximal degree in co-relation 62997. Up to 10900 conditions per place. [2024-11-10 17:52:46,921 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 101 selfloop transitions, 15 changer transitions 38/161 dead transitions. [2024-11-10 17:52:46,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 161 transitions, 1017 flow [2024-11-10 17:52:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 17:52:46,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 17:52:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 203 transitions. [2024-11-10 17:52:46,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2024-11-10 17:52:46,923 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 249 flow. Second operand 7 states and 203 transitions. [2024-11-10 17:52:46,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 161 transitions, 1017 flow [2024-11-10 17:52:47,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 161 transitions, 756 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-10 17:52:47,201 INFO L231 Difference]: Finished difference. Result has 69 places, 68 transitions, 262 flow [2024-11-10 17:52:47,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=262, PETRI_PLACES=69, PETRI_TRANSITIONS=68} [2024-11-10 17:52:47,202 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-11-10 17:52:47,202 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 68 transitions, 262 flow [2024-11-10 17:52:47,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:47,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:47,202 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] [2024-11-10 17:52:47,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 17:52:47,202 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:47,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:47,203 INFO L85 PathProgramCache]: Analyzing trace with hash -345422711, now seen corresponding path program 2 times [2024-11-10 17:52:47,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:47,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686025127] [2024-11-10 17:52:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:47,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:47,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:47,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686025127] [2024-11-10 17:52:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686025127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:47,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:52:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206811692] [2024-11-10 17:52:47,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:47,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:52:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:47,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:52:47,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:52:47,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:47,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-11-10 17:52:47,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:47,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:47,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:50,167 INFO L124 PetriNetUnfolderBase]: 27249/37405 cut-off events. [2024-11-10 17:52:50,167 INFO L125 PetriNetUnfolderBase]: For 22810/22813 co-relation queries the response was YES. [2024-11-10 17:52:50,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100344 conditions, 37405 events. 27249/37405 cut-off events. For 22810/22813 co-relation queries the response was YES. Maximal size of possible extension queue 1214. Compared 219010 event pairs, 11041 based on Foata normal form. 16/37398 useless extension candidates. Maximal degree in co-relation 100331. Up to 20579 conditions per place. [2024-11-10 17:52:50,401 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 76 selfloop transitions, 4 changer transitions 38/125 dead transitions. [2024-11-10 17:52:50,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 125 transitions, 701 flow [2024-11-10 17:52:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:52:50,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 17:52:50,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2024-11-10 17:52:50,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5037037037037037 [2024-11-10 17:52:50,403 INFO L175 Difference]: Start difference. First operand has 69 places, 68 transitions, 262 flow. Second operand 5 states and 136 transitions. [2024-11-10 17:52:50,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 125 transitions, 701 flow [2024-11-10 17:52:50,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 125 transitions, 695 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 17:52:50,417 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 261 flow [2024-11-10 17:52:50,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=261, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2024-11-10 17:52:50,418 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 11 predicate places. [2024-11-10 17:52:50,418 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 261 flow [2024-11-10 17:52:50,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-11-10 17:52:50,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:50,419 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] [2024-11-10 17:52:50,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 17:52:50,419 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:50,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2133063453, now seen corresponding path program 3 times [2024-11-10 17:52:50,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:50,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978412783] [2024-11-10 17:52:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:50,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:50,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:50,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978412783] [2024-11-10 17:52:50,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978412783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:50,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:50,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 17:52:50,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932581161] [2024-11-10 17:52:50,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:50,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:52:50,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:50,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:52:50,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:52:50,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:50,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 261 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-10 17:52:50,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:50,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:50,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:52,960 INFO L124 PetriNetUnfolderBase]: 17595/24368 cut-off events. [2024-11-10 17:52:52,960 INFO L125 PetriNetUnfolderBase]: For 15225/15225 co-relation queries the response was YES. [2024-11-10 17:52:53,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66225 conditions, 24368 events. 17595/24368 cut-off events. For 15225/15225 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 133818 event pairs, 2459 based on Foata normal form. 16/24382 useless extension candidates. Maximal degree in co-relation 66210. Up to 8938 conditions per place. [2024-11-10 17:52:53,133 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 69 selfloop transitions, 9 changer transitions 84/169 dead transitions. [2024-11-10 17:52:53,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 169 transitions, 947 flow [2024-11-10 17:52:53,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 17:52:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 17:52:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 216 transitions. [2024-11-10 17:52:53,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-10 17:52:53,135 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 261 flow. Second operand 8 states and 216 transitions. [2024-11-10 17:52:53,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 169 transitions, 947 flow [2024-11-10 17:52:53,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 169 transitions, 921 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:53,144 INFO L231 Difference]: Finished difference. Result has 77 places, 60 transitions, 251 flow [2024-11-10 17:52:53,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=251, PETRI_PLACES=77, PETRI_TRANSITIONS=60} [2024-11-10 17:52:53,144 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 16 predicate places. [2024-11-10 17:52:53,145 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 60 transitions, 251 flow [2024-11-10 17:52:53,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-10 17:52:53,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:53,145 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] [2024-11-10 17:52:53,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 17:52:53,145 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1968729807, now seen corresponding path program 4 times [2024-11-10 17:52:53,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:53,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423890131] [2024-11-10 17:52:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:53,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:52:53,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:53,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423890131] [2024-11-10 17:52:53,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423890131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:53,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:53,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:52:53,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332213533] [2024-11-10 17:52:53,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:53,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:53,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:53,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:53,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:53,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:53,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 60 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:53,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:53,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:53,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:54,833 INFO L124 PetriNetUnfolderBase]: 11427/16195 cut-off events. [2024-11-10 17:52:54,834 INFO L125 PetriNetUnfolderBase]: For 12878/12878 co-relation queries the response was YES. [2024-11-10 17:52:54,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43238 conditions, 16195 events. 11427/16195 cut-off events. For 12878/12878 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 87956 event pairs, 2355 based on Foata normal form. 16/16210 useless extension candidates. Maximal degree in co-relation 43221. Up to 8888 conditions per place. [2024-11-10 17:52:54,917 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 67 selfloop transitions, 6 changer transitions 43/123 dead transitions. [2024-11-10 17:52:54,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 123 transitions, 688 flow [2024-11-10 17:52:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:52:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:52:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2024-11-10 17:52:54,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4876543209876543 [2024-11-10 17:52:54,919 INFO L175 Difference]: Start difference. First operand has 77 places, 60 transitions, 251 flow. Second operand 6 states and 158 transitions. [2024-11-10 17:52:54,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 123 transitions, 688 flow [2024-11-10 17:52:54,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 123 transitions, 648 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-10 17:52:54,934 INFO L231 Difference]: Finished difference. Result has 74 places, 55 transitions, 211 flow [2024-11-10 17:52:54,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=74, PETRI_TRANSITIONS=55} [2024-11-10 17:52:54,935 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2024-11-10 17:52:54,935 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 55 transitions, 211 flow [2024-11-10 17:52:54,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:54,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:54,936 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] [2024-11-10 17:52:54,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 17:52:54,937 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:54,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:54,937 INFO L85 PathProgramCache]: Analyzing trace with hash -765796015, now seen corresponding path program 5 times [2024-11-10 17:52:54,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:54,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875810038] [2024-11-10 17:52:54,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:54,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat