./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.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_tso.oepc.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 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:52:38,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:52:38,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:52:38,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:52:38,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:52:38,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:52:38,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:52:38,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:52:38,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:52:38,775 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:52:38,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:52:38,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:52:38,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:52:38,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:52:38,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:52:38,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:52:38,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:52:38,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:52:38,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:52:38,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:52:38,780 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:52:38,784 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:52:38,784 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:52:38,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:52:38,784 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:52:38,785 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:52:38,785 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:52:38,785 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:52:38,786 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:52:38,786 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:52:38,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:52:38,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:52:38,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:52:38,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:52:38,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:52:38,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:52:38,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:52:38,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:52:38,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:52:38,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:52:38,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:52:38,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:52:38,791 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 [2024-11-10 17:52:39,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:52:39,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:52:39,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:52:39,061 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:52:39,061 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:52:39,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2024-11-10 17:52:40,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:52:40,682 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:52:40,684 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2024-11-10 17:52:40,702 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c27d1168/725c4511b71a49349a3ee62531ad3844/FLAGecd4a2f60 [2024-11-10 17:52:40,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c27d1168/725c4511b71a49349a3ee62531ad3844 [2024-11-10 17:52:40,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:52:40,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:52:40,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:52:40,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:52:41,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:52:41,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:52:40" (1/1) ... [2024-11-10 17:52:41,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a1af4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41, skipping insertion in model container [2024-11-10 17:52:41,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:52:40" (1/1) ... [2024-11-10 17:52:41,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:52:41,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:52:41,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:52:41,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:52:41,645 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:52:41,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41 WrapperNode [2024-11-10 17:52:41,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:52:41,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:52:41,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:52:41,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:52:41,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,711 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2024-11-10 17:52:41,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:52:41,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:52:41,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:52:41,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:52:41,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,742 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 17:52:41,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,755 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:52:41,765 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:52:41,765 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:52:41,765 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:52:41,766 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (1/1) ... [2024-11-10 17:52:41,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:52:41,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:52:41,801 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 17:52:41,805 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 17:52:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 17:52:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:52:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 17:52:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 17:52:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 17:52:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 17:52:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 17:52:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 17:52:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 17:52:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 17:52:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:52:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 17:52:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:52:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:52:41,851 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 17:52:41,964 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:52:41,966 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:52:42,272 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 17:52:42,272 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:52:42,484 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:52:42,485 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 17:52:42,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:52:42 BoogieIcfgContainer [2024-11-10 17:52:42,486 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:52:42,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:52:42,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:52:42,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:52:42,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:52:40" (1/3) ... [2024-11-10 17:52:42,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a324a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:52:42, skipping insertion in model container [2024-11-10 17:52:42,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:41" (2/3) ... [2024-11-10 17:52:42,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a324a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:52:42, skipping insertion in model container [2024-11-10 17:52:42,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:52:42" (3/3) ... [2024-11-10 17:52:42,495 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2024-11-10 17:52:42,511 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:52:42,511 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-10 17:52:42,511 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 17:52:42,572 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:52:42,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-10 17:52:42,635 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-10 17:52:42,636 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:42,639 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 6. Compared 100 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 17:52:42,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-10 17:52:42,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-10 17:52:42,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:52:42,655 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;@5537bb9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:52:42,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 17:52:42,661 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:52:42,662 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-10 17:52:42,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:42,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:42,663 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:42,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:42,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1024462879, now seen corresponding path program 1 times [2024-11-10 17:52:42,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:42,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439698388] [2024-11-10 17:52:42,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:42,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:43,092 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 17:52:43,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:43,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439698388] [2024-11-10 17:52:43,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439698388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:43,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:43,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:52:43,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566858106] [2024-11-10 17:52:43,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:43,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:52:43,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:43,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:52:43,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:52:43,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:43,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 17:52:43,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:43,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:43,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:48,126 INFO L124 PetriNetUnfolderBase]: 50459/67067 cut-off events. [2024-11-10 17:52:48,126 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-10 17:52:48,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133687 conditions, 67067 events. 50459/67067 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 1939. Compared 407656 event pairs, 6359 based on Foata normal form. 3024/70042 useless extension candidates. Maximal degree in co-relation 133675. Up to 57061 conditions per place. [2024-11-10 17:52:48,551 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 61 selfloop transitions, 2 changer transitions 2/73 dead transitions. [2024-11-10 17:52:48,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 73 transitions, 291 flow [2024-11-10 17:52:48,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:52:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:52:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-10 17:52:48,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2024-11-10 17:52:48,565 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 106 transitions. [2024-11-10 17:52:48,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 73 transitions, 291 flow [2024-11-10 17:52:48,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 73 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:48,575 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-10 17:52:48,577 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 17:52:48,580 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-10 17:52:48,581 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-10 17:52:48,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 17:52:48,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:48,582 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 17:52:48,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:52:48,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:48,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:48,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1411669382, now seen corresponding path program 1 times [2024-11-10 17:52:48,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:48,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563901486] [2024-11-10 17:52:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:48,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:48,677 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 17:52:48,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:48,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563901486] [2024-11-10 17:52:48,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563901486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:48,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:48,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:52:48,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355011024] [2024-11-10 17:52:48,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:48,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:52:48,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:52:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:52:48,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 17:52:48,683 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 17:52:48,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:48,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 17:52:48,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:53,009 INFO L124 PetriNetUnfolderBase]: 45383/63887 cut-off events. [2024-11-10 17:52:53,010 INFO L125 PetriNetUnfolderBase]: For 2340/2340 co-relation queries the response was YES. [2024-11-10 17:52:53,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126257 conditions, 63887 events. 45383/63887 cut-off events. For 2340/2340 co-relation queries the response was YES. Maximal size of possible extension queue 1953. Compared 422161 event pairs, 45383 based on Foata normal form. 1512/65140 useless extension candidates. Maximal degree in co-relation 126247. Up to 59508 conditions per place. [2024-11-10 17:52:53,340 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-10 17:52:53,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2024-11-10 17:52:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:52:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:52:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-10 17:52:53,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2024-11-10 17:52:53,343 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2024-11-10 17:52:53,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2024-11-10 17:52:53,349 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 17:52:53,350 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-10 17:52:53,350 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 17:52:53,351 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-10 17:52:53,351 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-10 17:52:53,351 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 17:52:53,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:53,351 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 17:52:53,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:52:53,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:53,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:53,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1411670131, now seen corresponding path program 1 times [2024-11-10 17:52:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:53,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268952341] [2024-11-10 17:52:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:53,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:53,897 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 17:52:53,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:53,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268952341] [2024-11-10 17:52:53,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268952341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:53,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:53,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:52:53,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212202525] [2024-11-10 17:52:53,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:53,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:53,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:53,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:53,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:53,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 17:52:53,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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 17:52:53,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:53,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 17:52:53,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:53:01,278 INFO L124 PetriNetUnfolderBase]: 79835/107627 cut-off events. [2024-11-10 17:53:01,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:53:01,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213557 conditions, 107627 events. 79835/107627 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2832. Compared 675715 event pairs, 9851 based on Foata normal form. 0/105784 useless extension candidates. Maximal degree in co-relation 213551. Up to 43537 conditions per place. [2024-11-10 17:53:01,793 INFO L140 encePairwiseOnDemand]: 39/54 looper letters, 67 selfloop transitions, 11 changer transitions 152/236 dead transitions. [2024-11-10 17:53:01,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 236 transitions, 942 flow [2024-11-10 17:53:01,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 17:53:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 17:53:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 365 transitions. [2024-11-10 17:53:01,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5632716049382716 [2024-11-10 17:53:01,798 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 12 states and 365 transitions. [2024-11-10 17:53:01,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 236 transitions, 942 flow [2024-11-10 17:53:01,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 236 transitions, 941 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:53:01,805 INFO L231 Difference]: Finished difference. Result has 75 places, 51 transitions, 237 flow [2024-11-10 17:53:01,806 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=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=237, PETRI_PLACES=75, PETRI_TRANSITIONS=51} [2024-11-10 17:53:01,807 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 14 predicate places. [2024-11-10 17:53:01,807 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 51 transitions, 237 flow [2024-11-10 17:53:01,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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 17:53:01,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:53:01,807 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] [2024-11-10 17:53:01,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:53:01,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:53:01,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:53:01,809 INFO L85 PathProgramCache]: Analyzing trace with hash -882999161, now seen corresponding path program 1 times [2024-11-10 17:53:01,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:53:01,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564431717] [2024-11-10 17:53:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:53:01,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:53:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:53:02,206 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 17:53:02,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:53:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564431717] [2024-11-10 17:53:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564431717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:53:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:53:02,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:53:02,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360809544] [2024-11-10 17:53:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:53:02,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:53:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:53:02,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:53:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:53:02,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 17:53:02,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 51 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 17:53:02,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:53:02,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 17:53:02,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:53:10,055 INFO L124 PetriNetUnfolderBase]: 66349/90255 cut-off events. [2024-11-10 17:53:10,055 INFO L125 PetriNetUnfolderBase]: For 173263/173263 co-relation queries the response was YES. [2024-11-10 17:53:10,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291003 conditions, 90255 events. 66349/90255 cut-off events. For 173263/173263 co-relation queries the response was YES. Maximal size of possible extension queue 2279. Compared 577755 event pairs, 7161 based on Foata normal form. 1796/92049 useless extension candidates. Maximal degree in co-relation 290985. Up to 52519 conditions per place. [2024-11-10 17:53:10,778 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 76 selfloop transitions, 21 changer transitions 100/203 dead transitions. [2024-11-10 17:53:10,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 203 transitions, 1371 flow [2024-11-10 17:53:10,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 17:53:10,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 17:53:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2024-11-10 17:53:10,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5592592592592592 [2024-11-10 17:53:10,780 INFO L175 Difference]: Start difference. First operand has 75 places, 51 transitions, 237 flow. Second operand 10 states and 302 transitions. [2024-11-10 17:53:10,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 203 transitions, 1371 flow [2024-11-10 17:53:12,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 203 transitions, 1247 flow, removed 60 selfloop flow, removed 5 redundant places. [2024-11-10 17:53:12,103 INFO L231 Difference]: Finished difference. Result has 78 places, 61 transitions, 375 flow [2024-11-10 17:53:12,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=375, PETRI_PLACES=78, PETRI_TRANSITIONS=61} [2024-11-10 17:53:12,104 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-11-10 17:53:12,105 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 61 transitions, 375 flow [2024-11-10 17:53:12,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 17:53:12,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:53:12,105 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 17:53:12,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:53:12,105 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:53:12,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:53:12,106 INFO L85 PathProgramCache]: Analyzing trace with hash -312981278, now seen corresponding path program 1 times [2024-11-10 17:53:12,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:53:12,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540576845] [2024-11-10 17:53:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:53:12,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:53:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:53:12,891 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 17:53:12,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:53:12,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540576845] [2024-11-10 17:53:12,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540576845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:53:12,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:53:12,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:53:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012317874] [2024-11-10 17:53:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:53:12,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:53:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:53:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:53:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:53:12,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 17:53:12,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 61 transitions, 375 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 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 17:53:12,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:53:12,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 17:53:12,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand