./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix037.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/mix037.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 be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:54:42,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:54:42,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:54:42,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:54:42,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:54:42,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:54:42,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:54:42,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:54:42,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:54:42,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:54:42,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:54:42,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:54:42,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:54:42,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:54:42,818 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:54:42,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:54:42,818 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:54:42,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:54:42,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:54:42,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:54:42,819 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:54:42,822 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:54:42,822 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:54:42,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:54:42,823 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:54:42,823 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:54:42,824 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:54:42,824 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:54:42,824 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:54:42,824 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:54:42,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:54:42,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:54:42,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:54:42,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:54:42,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:54:42,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:54:42,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:54:42,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:54:42,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:54:42,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:54:42,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:54:42,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:54:42,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef [2024-11-10 17:54:43,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:54:43,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:54:43,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:54:43,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:54:43,142 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:54:43,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix037.opt.i [2024-11-10 17:54:44,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:54:44,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:54:44,858 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037.opt.i [2024-11-10 17:54:44,872 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32f62da4/b553840f22ae497caffd6fab8a42c787/FLAGa32ba3417 [2024-11-10 17:54:44,890 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32f62da4/b553840f22ae497caffd6fab8a42c787 [2024-11-10 17:54:44,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:54:44,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:54:44,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:54:44,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:54:44,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:54:44,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:54:44" (1/1) ... [2024-11-10 17:54:44,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c796eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:44, skipping insertion in model container [2024-11-10 17:54:44,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:54:44" (1/1) ... [2024-11-10 17:54:44,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:54:45,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:54:45,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:54:45,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:54:45,527 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:54:45,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45 WrapperNode [2024-11-10 17:54:45,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:54:45,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:54:45,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:54:45,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:54:45,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,586 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 139 [2024-11-10 17:54:45,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:54:45,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:54:45,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:54:45,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:54:45,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,601 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,628 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 17:54:45,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,638 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:54:45,651 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:54:45,651 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:54:45,651 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:54:45,652 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (1/1) ... [2024-11-10 17:54:45,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:54:45,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:54:45,694 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 17:54:45,700 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 17:54:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 17:54:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:54:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 17:54:45,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 17:54:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 17:54:45,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 17:54:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 17:54:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 17:54:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 17:54:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 17:54:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:54:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 17:54:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:54:45,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:54:45,759 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 17:54:45,937 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:54:45,939 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:54:46,285 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 17:54:46,285 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:54:46,503 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:54:46,503 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 17:54:46,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:54:46 BoogieIcfgContainer [2024-11-10 17:54:46,504 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:54:46,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:54:46,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:54:46,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:54:46,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:54:44" (1/3) ... [2024-11-10 17:54:46,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1606d749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:54:46, skipping insertion in model container [2024-11-10 17:54:46,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:45" (2/3) ... [2024-11-10 17:54:46,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1606d749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:54:46, skipping insertion in model container [2024-11-10 17:54:46,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:54:46" (3/3) ... [2024-11-10 17:54:46,517 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037.opt.i [2024-11-10 17:54:46,558 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:54:46,558 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-10 17:54:46,558 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 17:54:46,626 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:54:46,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-10 17:54:46,712 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-10 17:54:46,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:54:46,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-10 17:54:46,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-10 17:54:46,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-10 17:54:46,733 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:54:46,738 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;@35bf6bbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:54:46,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 17:54:46,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:54:46,752 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-10 17:54:46,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:54:46,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:54:46,753 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:54:46,753 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 17:54:46,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:54:46,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1564048595, now seen corresponding path program 1 times [2024-11-10 17:54:46,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:54:46,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406125250] [2024-11-10 17:54:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:54:46,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:54:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:54:47,298 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 17:54:47,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:54:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406125250] [2024-11-10 17:54:47,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406125250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:54:47,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:54:47,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:54:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273915271] [2024-11-10 17:54:47,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:54:47,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:54:47,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:54:47,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:54:47,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:54:47,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:54:47,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 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 17:54:47,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:54:47,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:54:47,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:54:54,361 INFO L124 PetriNetUnfolderBase]: 57803/76503 cut-off events. [2024-11-10 17:54:54,362 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-10 17:54:54,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152627 conditions, 76503 events. 57803/76503 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 2083. Compared 453001 event pairs, 6395 based on Foata normal form. 3456/79932 useless extension candidates. Maximal degree in co-relation 152615. Up to 66529 conditions per place. [2024-11-10 17:54:54,947 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 59 selfloop transitions, 2 changer transitions 2/71 dead transitions. [2024-11-10 17:54:54,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 280 flow [2024-11-10 17:54:54,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:54:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:54:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-10 17:54:54,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-10 17:54:54,964 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 104 transitions. [2024-11-10 17:54:54,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 280 flow [2024-11-10 17:54:54,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 71 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 17:54:54,988 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-10 17:54:54,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-10 17:54:54,999 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-10 17:54:54,999 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-10 17:54:55,000 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 17:54:55,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:54:55,000 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 17:54:55,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:54:55,001 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 17:54:55,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:54:55,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1289665938, now seen corresponding path program 1 times [2024-11-10 17:54:55,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:54:55,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885229549] [2024-11-10 17:54:55,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:54:55,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:54:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:54:55,078 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 17:54:55,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:54:55,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885229549] [2024-11-10 17:54:55,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885229549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:54:55,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:54:55,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:54:55,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242851309] [2024-11-10 17:54:55,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:54:55,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:54:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:54:55,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:54:55,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:54:55,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-10 17:54:55,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 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 17:54:55,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:54:55,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-10 17:54:55,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:54:59,948 INFO L124 PetriNetUnfolderBase]: 51971/72399 cut-off events. [2024-11-10 17:54:59,948 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2024-11-10 17:55:00,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142905 conditions, 72399 events. 51971/72399 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 2106. Compared 473103 event pairs, 51971 based on Foata normal form. 1728/73884 useless extension candidates. Maximal degree in co-relation 142895. Up to 68040 conditions per place. [2024-11-10 17:55:00,459 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-10 17:55:00,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2024-11-10 17:55:00,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:55:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:55:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-10 17:55:00,464 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2024-11-10 17:55:00,464 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2024-11-10 17:55:00,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2024-11-10 17:55:00,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 17:55:00,481 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-10 17:55:00,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-10 17:55:00,483 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-10 17:55:00,483 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-10 17:55:00,483 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 17:55:00,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:00,484 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 17:55:00,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:55:00,485 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 17:55:00,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:00,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1289666618, now seen corresponding path program 1 times [2024-11-10 17:55:00,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:00,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442813880] [2024-11-10 17:55:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:00,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:55:00,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:00,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442813880] [2024-11-10 17:55:00,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442813880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:00,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:00,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:55:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567044256] [2024-11-10 17:55:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:00,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:55:00,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:55:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:55:00,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:00,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 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 17:55:00,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:00,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:00,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:04,404 INFO L124 PetriNetUnfolderBase]: 41411/59241 cut-off events. [2024-11-10 17:55:04,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:55:04,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114939 conditions, 59241 events. 41411/59241 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1802. Compared 403866 event pairs, 5075 based on Foata normal form. 1728/60950 useless extension candidates. Maximal degree in co-relation 114933. Up to 33841 conditions per place. [2024-11-10 17:55:05,070 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 6 changer transitions 1/92 dead transitions. [2024-11-10 17:55:05,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 92 transitions, 370 flow [2024-11-10 17:55:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:55:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 17:55:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2024-11-10 17:55:05,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-10 17:55:05,072 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 4 states and 135 transitions. [2024-11-10 17:55:05,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 92 transitions, 370 flow [2024-11-10 17:55:05,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 92 transitions, 369 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:55:05,076 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 139 flow [2024-11-10 17:55:05,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-10 17:55:05,077 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-11-10 17:55:05,077 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 139 flow [2024-11-10 17:55:05,078 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 17:55:05,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:05,078 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 17:55:05,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:55:05,078 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 17:55:05,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:05,079 INFO L85 PathProgramCache]: Analyzing trace with hash -850371110, now seen corresponding path program 1 times [2024-11-10 17:55:05,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:05,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430202249] [2024-11-10 17:55:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:05,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:05,286 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 17:55:05,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:05,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430202249] [2024-11-10 17:55:05,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430202249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:05,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:05,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:55:05,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917557349] [2024-11-10 17:55:05,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:05,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:55:05,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:05,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:55:05,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:55:05,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:05,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 139 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 17:55:05,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:05,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:05,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:07,666 INFO L124 PetriNetUnfolderBase]: 25795/36905 cut-off events. [2024-11-10 17:55:07,666 INFO L125 PetriNetUnfolderBase]: For 7006/7006 co-relation queries the response was YES. [2024-11-10 17:55:07,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81786 conditions, 36905 events. 25795/36905 cut-off events. For 7006/7006 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 231724 event pairs, 2975 based on Foata normal form. 1344/38230 useless extension candidates. Maximal degree in co-relation 81777. Up to 14833 conditions per place. [2024-11-10 17:55:07,938 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 101 selfloop transitions, 10 changer transitions 1/119 dead transitions. [2024-11-10 17:55:07,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 119 transitions, 534 flow [2024-11-10 17:55:07,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:55:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 17:55:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-10 17:55:07,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6327272727272727 [2024-11-10 17:55:07,941 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 139 flow. Second operand 5 states and 174 transitions. [2024-11-10 17:55:07,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 119 transitions, 534 flow [2024-11-10 17:55:07,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 119 transitions, 523 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 17:55:07,961 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 191 flow [2024-11-10 17:55:07,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-11-10 17:55:07,962 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-11-10 17:55:07,963 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 191 flow [2024-11-10 17:55:07,964 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 17:55:07,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:07,964 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 17:55:07,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:55:07,967 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 17:55:07,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:07,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1677198304, now seen corresponding path program 1 times [2024-11-10 17:55:07,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:07,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561026144] [2024-11-10 17:55:07,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:07,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:08,414 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 17:55:08,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:08,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561026144] [2024-11-10 17:55:08,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561026144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:08,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:08,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:55:08,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282142769] [2024-11-10 17:55:08,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:08,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:55:08,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:08,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:55:08,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:55:08,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:08,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 191 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 17:55:08,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:08,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:08,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:09,797 INFO L124 PetriNetUnfolderBase]: 15171/21257 cut-off events. [2024-11-10 17:55:09,797 INFO L125 PetriNetUnfolderBase]: For 12886/12886 co-relation queries the response was YES. [2024-11-10 17:55:09,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51854 conditions, 21257 events. 15171/21257 cut-off events. For 12886/12886 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 116739 event pairs, 2591 based on Foata normal form. 640/21878 useless extension candidates. Maximal degree in co-relation 51843. Up to 6144 conditions per place. [2024-11-10 17:55:09,931 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 122 selfloop transitions, 14 changer transitions 1/144 dead transitions. [2024-11-10 17:55:09,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 144 transitions, 697 flow [2024-11-10 17:55:09,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:55:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:55:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-11-10 17:55:09,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6393939393939394 [2024-11-10 17:55:09,933 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 191 flow. Second operand 6 states and 211 transitions. [2024-11-10 17:55:09,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 144 transitions, 697 flow [2024-11-10 17:55:10,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 144 transitions, 667 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 17:55:10,094 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 241 flow [2024-11-10 17:55:10,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2024-11-10 17:55:10,095 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-11-10 17:55:10,096 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 241 flow [2024-11-10 17:55:10,096 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 17:55:10,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:10,096 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 17:55:10,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 17:55:10,097 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 17:55:10,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:10,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1322787024, now seen corresponding path program 1 times [2024-11-10 17:55:10,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:10,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013107332] [2024-11-10 17:55:10,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:10,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:10,432 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 17:55:10,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:10,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013107332] [2024-11-10 17:55:10,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013107332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:10,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:10,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:55:10,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002390547] [2024-11-10 17:55:10,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:10,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:55:10,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:10,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:55:10,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:55:10,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:10,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 241 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 17:55:10,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:10,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:10,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:11,349 INFO L124 PetriNetUnfolderBase]: 11715/16025 cut-off events. [2024-11-10 17:55:11,350 INFO L125 PetriNetUnfolderBase]: For 12398/12398 co-relation queries the response was YES. [2024-11-10 17:55:11,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40639 conditions, 16025 events. 11715/16025 cut-off events. For 12398/12398 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 83194 event pairs, 2399 based on Foata normal form. 160/16166 useless extension candidates. Maximal degree in co-relation 40627. Up to 6144 conditions per place. [2024-11-10 17:55:11,467 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 105 selfloop transitions, 18 changer transitions 1/131 dead transitions. [2024-11-10 17:55:11,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 131 transitions, 655 flow [2024-11-10 17:55:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 17:55:11,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 17:55:11,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2024-11-10 17:55:11,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-10 17:55:11,469 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 241 flow. Second operand 7 states and 210 transitions. [2024-11-10 17:55:11,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 131 transitions, 655 flow [2024-11-10 17:55:11,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 131 transitions, 609 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-10 17:55:11,700 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 251 flow [2024-11-10 17:55:11,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-11-10 17:55:11,701 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-11-10 17:55:11,701 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 251 flow [2024-11-10 17:55:11,702 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 17:55:11,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:11,702 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:11,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 17:55:11,702 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 17:55:11,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1072065007, now seen corresponding path program 1 times [2024-11-10 17:55:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:11,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039313778] [2024-11-10 17:55:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:12,131 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 17:55:12,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:12,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039313778] [2024-11-10 17:55:12,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039313778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:12,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:12,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:55:12,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934612640] [2024-11-10 17:55:12,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:12,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:55:12,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:55:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:55:12,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:12,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 17:55:12,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:12,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:12,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:13,767 INFO L124 PetriNetUnfolderBase]: 19137/26147 cut-off events. [2024-11-10 17:55:13,768 INFO L125 PetriNetUnfolderBase]: For 19292/19292 co-relation queries the response was YES. [2024-11-10 17:55:13,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66566 conditions, 26147 events. 19137/26147 cut-off events. For 19292/19292 co-relation queries the response was YES. Maximal size of possible extension queue 809. Compared 145975 event pairs, 3595 based on Foata normal form. 16/26160 useless extension candidates. Maximal degree in co-relation 66553. Up to 13554 conditions per place. [2024-11-10 17:55:13,983 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 110 selfloop transitions, 12 changer transitions 20/149 dead transitions. [2024-11-10 17:55:13,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 149 transitions, 915 flow [2024-11-10 17:55:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 17:55:13,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 17:55:13,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 197 transitions. [2024-11-10 17:55:13,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5116883116883116 [2024-11-10 17:55:13,985 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 251 flow. Second operand 7 states and 197 transitions. [2024-11-10 17:55:13,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 149 transitions, 915 flow [2024-11-10 17:55:14,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 149 transitions, 690 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-10 17:55:14,389 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 242 flow [2024-11-10 17:55:14,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=242, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-11-10 17:55:14,390 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-10 17:55:14,390 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 242 flow [2024-11-10 17:55:14,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 17:55:14,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:14,390 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:14,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 17:55:14,391 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 17:55:14,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:14,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1204373269, now seen corresponding path program 2 times [2024-11-10 17:55:14,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:14,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518100172] [2024-11-10 17:55:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:14,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:14,690 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 17:55:14,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:14,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518100172] [2024-11-10 17:55:14,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518100172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:14,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:14,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 17:55:14,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414791973] [2024-11-10 17:55:14,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:14,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:55:14,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:14,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:55:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:55:14,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:14,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 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 17:55:14,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:14,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:14,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:17,630 INFO L124 PetriNetUnfolderBase]: 32605/44695 cut-off events. [2024-11-10 17:55:17,631 INFO L125 PetriNetUnfolderBase]: For 22618/22618 co-relation queries the response was YES. [2024-11-10 17:55:17,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114616 conditions, 44695 events. 32605/44695 cut-off events. For 22618/22618 co-relation queries the response was YES. Maximal size of possible extension queue 1352. Compared 262930 event pairs, 3073 based on Foata normal form. 16/44690 useless extension candidates. Maximal degree in co-relation 114603. Up to 17438 conditions per place. [2024-11-10 17:55:17,921 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 118 selfloop transitions, 16 changer transitions 74/215 dead transitions. [2024-11-10 17:55:17,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 215 transitions, 1178 flow [2024-11-10 17:55:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 17:55:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 17:55:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 239 transitions. [2024-11-10 17:55:17,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5431818181818182 [2024-11-10 17:55:17,923 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 242 flow. Second operand 8 states and 239 transitions. [2024-11-10 17:55:17,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 215 transitions, 1178 flow [2024-11-10 17:55:17,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 215 transitions, 1172 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 17:55:17,933 INFO L231 Difference]: Finished difference. Result has 79 places, 75 transitions, 361 flow [2024-11-10 17:55:17,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=361, PETRI_PLACES=79, PETRI_TRANSITIONS=75} [2024-11-10 17:55:17,934 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-11-10 17:55:17,934 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 75 transitions, 361 flow [2024-11-10 17:55:17,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 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 17:55:17,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:17,935 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:17,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 17:55:17,935 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 17:55:17,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:17,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2025388097, now seen corresponding path program 3 times [2024-11-10 17:55:17,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:17,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746447629] [2024-11-10 17:55:17,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:17,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:18,293 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 17:55:18,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:18,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746447629] [2024-11-10 17:55:18,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746447629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:18,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:18,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:55:18,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342198864] [2024-11-10 17:55:18,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:18,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:55:18,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:18,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:55:18,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:55:18,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:18,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 75 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 17:55:18,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:18,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:18,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:21,098 INFO L124 PetriNetUnfolderBase]: 27123/37913 cut-off events. [2024-11-10 17:55:21,098 INFO L125 PetriNetUnfolderBase]: For 36294/36294 co-relation queries the response was YES. [2024-11-10 17:55:21,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103580 conditions, 37913 events. 27123/37913 cut-off events. For 36294/36294 co-relation queries the response was YES. Maximal size of possible extension queue 1245. Compared 229056 event pairs, 8321 based on Foata normal form. 16/37924 useless extension candidates. Maximal degree in co-relation 103561. Up to 21018 conditions per place. [2024-11-10 17:55:21,395 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 67 selfloop transitions, 1 changer transitions 78/153 dead transitions. [2024-11-10 17:55:21,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 153 transitions, 951 flow [2024-11-10 17:55:21,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:55:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:55:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-11-10 17:55:21,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-10 17:55:21,397 INFO L175 Difference]: Start difference. First operand has 79 places, 75 transitions, 361 flow. Second operand 6 states and 165 transitions. [2024-11-10 17:55:21,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 153 transitions, 951 flow [2024-11-10 17:55:21,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 153 transitions, 935 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-10 17:55:21,487 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 266 flow [2024-11-10 17:55:21,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-11-10 17:55:21,487 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2024-11-10 17:55:21,488 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 266 flow [2024-11-10 17:55:21,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 17:55:21,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:21,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:21,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 17:55:21,488 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 17:55:21,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:21,489 INFO L85 PathProgramCache]: Analyzing trace with hash -484917031, now seen corresponding path program 4 times [2024-11-10 17:55:21,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:21,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364687280] [2024-11-10 17:55:21,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:21,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:21,776 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 17:55:21,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:21,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364687280] [2024-11-10 17:55:21,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364687280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:21,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:21,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:55:21,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745715008] [2024-11-10 17:55:21,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:21,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:55:21,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:21,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:55:21,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:55:21,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:21,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 266 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 17:55:21,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:21,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:21,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand