./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix018_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/mix018_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 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:52:03,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:52:03,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:52:03,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:52:03,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:52:03,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:52:03,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:52:03,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:52:03,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:52:03,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:52:03,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:52:03,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:52:03,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:52:03,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:52:03,375 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:52:03,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:52:03,375 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:52:03,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:52:03,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:52:03,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:52:03,376 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:52:03,377 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:52:03,377 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:52:03,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:52:03,377 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:52:03,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:52:03,378 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:52:03,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:52:03,378 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:52:03,378 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:52:03,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:52:03,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:52:03,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:52:03,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:52:03,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:52:03,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:52:03,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:52:03,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:52:03,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:52:03,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:52:03,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:52:03,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:52:03,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf [2024-11-10 17:52:03,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:52:03,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:52:03,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:52:03,589 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:52:03,589 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:52:03,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2024-11-10 17:52:04,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:52:05,028 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:52:05,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2024-11-10 17:52:05,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65da6c4bc/3b5be60a92b54f189a1832af37871d7a/FLAG1b1acced4 [2024-11-10 17:52:05,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65da6c4bc/3b5be60a92b54f189a1832af37871d7a [2024-11-10 17:52:05,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:52:05,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:52:05,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:52:05,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:52:05,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:52:05,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf962ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05, skipping insertion in model container [2024-11-10 17:52:05,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:52:05,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:52:05,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:52:05,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:52:05,858 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:52:05,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05 WrapperNode [2024-11-10 17:52:05,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:52:05,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:52:05,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:52:05,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:52:05,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,917 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2024-11-10 17:52:05,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:52:05,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:52:05,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:52:05,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:52:05,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,950 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 17:52:05,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,957 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:52:05,973 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:52:05,974 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:52:05,974 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:52:05,974 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (1/1) ... [2024-11-10 17:52:05,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:52:05,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:52:06,000 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 17:52:06,001 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 17:52:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 17:52:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:52:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 17:52:06,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 17:52:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 17:52:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 17:52:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 17:52:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 17:52:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 17:52:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 17:52:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:52:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 17:52:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:52:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:52:06,037 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 17:52:06,137 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:52:06,138 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:52:06,403 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 17:52:06,404 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:52:06,580 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:52:06,581 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 17:52:06,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:52:06 BoogieIcfgContainer [2024-11-10 17:52:06,582 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:52:06,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:52:06,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:52:06,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:52:06,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:52:05" (1/3) ... [2024-11-10 17:52:06,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0514b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:52:06, skipping insertion in model container [2024-11-10 17:52:06,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:52:05" (2/3) ... [2024-11-10 17:52:06,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0514b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:52:06, skipping insertion in model container [2024-11-10 17:52:06,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:52:06" (3/3) ... [2024-11-10 17:52:06,589 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_tso.oepc.i [2024-11-10 17:52:06,601 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:52:06,602 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-10 17:52:06,602 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 17:52:06,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:52:06,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-10 17:52:06,714 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-10 17:52:06,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:06,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 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 17:52:06,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-10 17:52:06,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-10 17:52:06,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:52:06,744 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;@1c2a9ae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:52:06,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 17:52:06,750 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:52:06,750 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-10 17:52:06,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:06,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:06,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:52:06,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:06,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:06,756 INFO L85 PathProgramCache]: Analyzing trace with hash 523050374, now seen corresponding path program 1 times [2024-11-10 17:52:06,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:06,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908047557] [2024-11-10 17:52:06,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:07,134 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 17:52:07,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:07,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908047557] [2024-11-10 17:52:07,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908047557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:07,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:07,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:52:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508067546] [2024-11-10 17:52:07,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:07,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:52:07,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:07,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:52:07,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:52:07,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:07,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 17:52:07,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:07,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:07,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:12,050 INFO L124 PetriNetUnfolderBase]: 50459/66907 cut-off events. [2024-11-10 17:52:12,051 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2024-11-10 17:52:12,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133527 conditions, 66907 events. 50459/66907 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 1937. Compared 406645 event pairs, 6249 based on Foata normal form. 2988/69837 useless extension candidates. Maximal degree in co-relation 133515. Up to 57231 conditions per place. [2024-11-10 17:52:12,368 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2024-11-10 17:52:12,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 302 flow [2024-11-10 17:52:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:52:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:52:12,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-10 17:52:12,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-10 17:52:12,380 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 108 transitions. [2024-11-10 17:52:12,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 302 flow [2024-11-10 17:52:12,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:12,387 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-10 17:52:12,389 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 17:52:12,392 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-10 17:52:12,394 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-10 17:52:12,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 17:52:12,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:12,394 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 17:52:12,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:52:12,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:12,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:12,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1521009259, now seen corresponding path program 1 times [2024-11-10 17:52:12,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:12,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113555856] [2024-11-10 17:52:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:12,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:12,493 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 17:52:12,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:12,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113555856] [2024-11-10 17:52:12,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113555856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:12,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:12,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:52:12,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245103340] [2024-11-10 17:52:12,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:12,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:52:12,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:12,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:52:12,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:52:12,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 17:52:12,496 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 17:52:12,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:12,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 17:52:12,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:16,445 INFO L124 PetriNetUnfolderBase]: 45383/63227 cut-off events. [2024-11-10 17:52:16,445 INFO L125 PetriNetUnfolderBase]: For 2352/2352 co-relation queries the response was YES. [2024-11-10 17:52:16,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125609 conditions, 63227 events. 45383/63227 cut-off events. For 2352/2352 co-relation queries the response was YES. Maximal size of possible extension queue 1946. Compared 409056 event pairs, 45383 based on Foata normal form. 1512/64452 useless extension candidates. Maximal degree in co-relation 125599. Up to 59508 conditions per place. [2024-11-10 17:52:16,753 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-10 17:52:16,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2024-11-10 17:52:16,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:52:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:52:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-10 17:52:16,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2024-11-10 17:52:16,756 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2024-11-10 17:52:16,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2024-11-10 17:52:16,758 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 17:52:16,759 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-10 17:52:16,760 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 17:52:16,760 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-10 17:52:16,760 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-10 17:52:16,761 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 17:52:16,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:16,761 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 17:52:16,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:52:16,762 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:16,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:16,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1521009851, now seen corresponding path program 1 times [2024-11-10 17:52:16,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:16,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118483897] [2024-11-10 17:52:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:16,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:17,001 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 17:52:17,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:17,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118483897] [2024-11-10 17:52:17,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118483897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:17,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:17,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:52:17,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588278952] [2024-11-10 17:52:17,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:17,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:52:17,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:17,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:52:17,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:52:17,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:17,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:17,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:17,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:17,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:20,495 INFO L124 PetriNetUnfolderBase]: 36511/52327 cut-off events. [2024-11-10 17:52:20,495 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:52:20,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101565 conditions, 52327 events. 36511/52327 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1673. Compared 354385 event pairs, 4407 based on Foata normal form. 1512/53792 useless extension candidates. Maximal degree in co-relation 101559. Up to 29929 conditions per place. [2024-11-10 17:52:20,718 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 75 selfloop transitions, 6 changer transitions 1/89 dead transitions. [2024-11-10 17:52:20,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 89 transitions, 358 flow [2024-11-10 17:52:20,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:52:20,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 17:52:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-10 17:52:20,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-10 17:52:20,724 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 4 states and 132 transitions. [2024-11-10 17:52:20,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 89 transitions, 358 flow [2024-11-10 17:52:20,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 89 transitions, 357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:52:20,726 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 137 flow [2024-11-10 17:52:20,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2024-11-10 17:52:20,727 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-11-10 17:52:20,728 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 137 flow [2024-11-10 17:52:20,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:20,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:20,728 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:20,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:52:20,728 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:20,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:20,729 INFO L85 PathProgramCache]: Analyzing trace with hash 842868227, now seen corresponding path program 1 times [2024-11-10 17:52:20,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:20,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573983286] [2024-11-10 17:52:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:20,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:20,937 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 17:52:20,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:20,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573983286] [2024-11-10 17:52:20,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573983286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:20,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:20,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:52:20,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97794734] [2024-11-10 17:52:20,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:20,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:52:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:20,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:52:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:52:20,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:20,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:20,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:20,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:20,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:23,292 INFO L124 PetriNetUnfolderBase]: 23071/33095 cut-off events. [2024-11-10 17:52:23,292 INFO L125 PetriNetUnfolderBase]: For 6336/6336 co-relation queries the response was YES. [2024-11-10 17:52:23,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73472 conditions, 33095 events. 23071/33095 cut-off events. For 6336/6336 co-relation queries the response was YES. Maximal size of possible extension queue 864. Compared 207034 event pairs, 2563 based on Foata normal form. 1192/34240 useless extension candidates. Maximal degree in co-relation 73463. Up to 13513 conditions per place. [2024-11-10 17:52:23,413 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 97 selfloop transitions, 10 changer transitions 1/115 dead transitions. [2024-11-10 17:52:23,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 115 transitions, 518 flow [2024-11-10 17:52:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:52:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 17:52:23,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-10 17:52:23,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-10 17:52:23,415 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 137 flow. Second operand 5 states and 170 transitions. [2024-11-10 17:52:23,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 115 transitions, 518 flow [2024-11-10 17:52:23,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 115 transitions, 507 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 17:52:23,426 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 189 flow [2024-11-10 17:52:23,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-11-10 17:52:23,427 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-11-10 17:52:23,427 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 189 flow [2024-11-10 17:52:23,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:23,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:23,427 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:23,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:52:23,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:23,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash 550291369, now seen corresponding path program 1 times [2024-11-10 17:52:23,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:23,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356271526] [2024-11-10 17:52:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:23,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:23,688 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 17:52:23,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:23,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356271526] [2024-11-10 17:52:23,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356271526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:23,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:23,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:52:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426397030] [2024-11-10 17:52:23,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:23,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:23,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:23,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:23,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:23,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:23,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:23,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:23,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:23,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:25,053 INFO L124 PetriNetUnfolderBase]: 13599/19127 cut-off events. [2024-11-10 17:52:25,054 INFO L125 PetriNetUnfolderBase]: For 11710/11710 co-relation queries the response was YES. [2024-11-10 17:52:25,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46832 conditions, 19127 events. 13599/19127 cut-off events. For 11710/11710 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 105018 event pairs, 2215 based on Foata normal form. 584/19664 useless extension candidates. Maximal degree in co-relation 46821. Up to 5388 conditions per place. [2024-11-10 17:52:25,122 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 117 selfloop transitions, 14 changer transitions 1/139 dead transitions. [2024-11-10 17:52:25,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 139 transitions, 677 flow [2024-11-10 17:52:25,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:52:25,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:52:25,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-11-10 17:52:25,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2024-11-10 17:52:25,123 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 189 flow. Second operand 6 states and 206 transitions. [2024-11-10 17:52:25,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 139 transitions, 677 flow [2024-11-10 17:52:25,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 139 transitions, 647 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:25,221 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 239 flow [2024-11-10 17:52:25,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-10 17:52:25,222 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2024-11-10 17:52:25,222 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 239 flow [2024-11-10 17:52:25,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:25,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:25,223 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:25,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 17:52:25,223 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:25,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1091398358, now seen corresponding path program 1 times [2024-11-10 17:52:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:25,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152665165] [2024-11-10 17:52:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:25,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:25,483 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 17:52:25,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:25,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152665165] [2024-11-10 17:52:25,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152665165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:25,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:25,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:52:25,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501383524] [2024-11-10 17:52:25,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:25,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:52:25,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:52:25,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:52:25,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:25,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:25,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:25,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:25,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:26,803 INFO L124 PetriNetUnfolderBase]: 10399/14271 cut-off events. [2024-11-10 17:52:26,803 INFO L125 PetriNetUnfolderBase]: For 11302/11302 co-relation queries the response was YES. [2024-11-10 17:52:26,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36441 conditions, 14271 events. 10399/14271 cut-off events. For 11302/11302 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 73861 event pairs, 2043 based on Foata normal form. 152/14376 useless extension candidates. Maximal degree in co-relation 36429. Up to 5376 conditions per place. [2024-11-10 17:52:26,878 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 101 selfloop transitions, 18 changer transitions 1/127 dead transitions. [2024-11-10 17:52:26,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 127 transitions, 639 flow [2024-11-10 17:52:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 17:52:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 17:52:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2024-11-10 17:52:26,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.544973544973545 [2024-11-10 17:52:26,879 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 239 flow. Second operand 7 states and 206 transitions. [2024-11-10 17:52:26,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 127 transitions, 639 flow [2024-11-10 17:52:27,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 127 transitions, 593 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-10 17:52:27,073 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 249 flow [2024-11-10 17:52:27,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-11-10 17:52:27,074 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2024-11-10 17:52:27,074 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 249 flow [2024-11-10 17:52:27,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:27,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:27,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:27,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 17:52:27,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:27,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2698799, now seen corresponding path program 1 times [2024-11-10 17:52:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:27,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965393493] [2024-11-10 17:52:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:27,472 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 17:52:27,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:27,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965393493] [2024-11-10 17:52:27,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965393493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:27,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:27,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:52:27,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578994372] [2024-11-10 17:52:27,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:27,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:27,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:27,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:27,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:27,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:27,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:27,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:27,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:27,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:28,821 INFO L124 PetriNetUnfolderBase]: 14115/19346 cut-off events. [2024-11-10 17:52:28,821 INFO L125 PetriNetUnfolderBase]: For 15090/15090 co-relation queries the response was YES. [2024-11-10 17:52:28,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49569 conditions, 19346 events. 14115/19346 cut-off events. For 15090/15090 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 105123 event pairs, 1955 based on Foata normal form. 16/19350 useless extension candidates. Maximal degree in co-relation 49556. Up to 11578 conditions per place. [2024-11-10 17:52:28,868 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 67 selfloop transitions, 1 changer transitions 52/127 dead transitions. [2024-11-10 17:52:28,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 127 transitions, 819 flow [2024-11-10 17:52:28,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:52:28,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:52:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 163 transitions. [2024-11-10 17:52:28,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5030864197530864 [2024-11-10 17:52:28,873 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 249 flow. Second operand 6 states and 163 transitions. [2024-11-10 17:52:28,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 127 transitions, 819 flow [2024-11-10 17:52:29,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 127 transitions, 594 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-10 17:52:29,032 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 164 flow [2024-11-10 17:52:29,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2024-11-10 17:52:29,033 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2024-11-10 17:52:29,033 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 164 flow [2024-11-10 17:52:29,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:29,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:29,033 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:29,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 17:52:29,034 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:29,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:29,034 INFO L85 PathProgramCache]: Analyzing trace with hash 678465099, now seen corresponding path program 2 times [2024-11-10 17:52:29,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:29,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153323531] [2024-11-10 17:52:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:29,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:30,861 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 17:52:30,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153323531] [2024-11-10 17:52:30,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153323531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:30,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:30,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 17:52:30,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059224460] [2024-11-10 17:52:30,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:30,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 17:52:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 17:52:30,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-10 17:52:30,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:30,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 164 flow. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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 17:52:30,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:30,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:30,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:32,349 INFO L124 PetriNetUnfolderBase]: 13395/18625 cut-off events. [2024-11-10 17:52:32,349 INFO L125 PetriNetUnfolderBase]: For 3610/3610 co-relation queries the response was YES. [2024-11-10 17:52:32,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42024 conditions, 18625 events. 13395/18625 cut-off events. For 3610/3610 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 103922 event pairs, 1221 based on Foata normal form. 16/18633 useless extension candidates. Maximal degree in co-relation 42013. Up to 7128 conditions per place. [2024-11-10 17:52:32,404 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 133 selfloop transitions, 10 changer transitions 31/181 dead transitions. [2024-11-10 17:52:32,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 181 transitions, 883 flow [2024-11-10 17:52:32,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 17:52:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 17:52:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 241 transitions. [2024-11-10 17:52:32,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49588477366255146 [2024-11-10 17:52:32,406 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 164 flow. Second operand 9 states and 241 transitions. [2024-11-10 17:52:32,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 181 transitions, 883 flow [2024-11-10 17:52:32,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 181 transitions, 870 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:32,410 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 214 flow [2024-11-10 17:52:32,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=214, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-11-10 17:52:32,412 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 11 predicate places. [2024-11-10 17:52:32,413 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 214 flow [2024-11-10 17:52:32,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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 17:52:32,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:32,416 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:32,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 17:52:32,416 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:32,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:32,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1841779613, now seen corresponding path program 3 times [2024-11-10 17:52:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:32,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338843522] [2024-11-10 17:52:32,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:32,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:33,368 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 17:52:33,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:33,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338843522] [2024-11-10 17:52:33,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338843522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:33,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:33,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 17:52:33,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652565003] [2024-11-10 17:52:33,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:33,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 17:52:33,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:33,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 17:52:33,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-10 17:52:33,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:33,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 214 flow. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:33,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:33,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:33,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:35,418 INFO L124 PetriNetUnfolderBase]: 20128/28019 cut-off events. [2024-11-10 17:52:35,418 INFO L125 PetriNetUnfolderBase]: For 11934/11937 co-relation queries the response was YES. [2024-11-10 17:52:35,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71799 conditions, 28019 events. 20128/28019 cut-off events. For 11934/11937 co-relation queries the response was YES. Maximal size of possible extension queue 921. Compared 159733 event pairs, 6135 based on Foata normal form. 16/28026 useless extension candidates. Maximal degree in co-relation 71786. Up to 16045 conditions per place. [2024-11-10 17:52:35,531 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 86 selfloop transitions, 10 changer transitions 137/240 dead transitions. [2024-11-10 17:52:35,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 240 transitions, 1291 flow [2024-11-10 17:52:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 17:52:35,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 17:52:35,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 325 transitions. [2024-11-10 17:52:35,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2024-11-10 17:52:35,533 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 214 flow. Second operand 13 states and 325 transitions. [2024-11-10 17:52:35,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 240 transitions, 1291 flow [2024-11-10 17:52:35,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 240 transitions, 1284 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-10 17:52:35,541 INFO L231 Difference]: Finished difference. Result has 88 places, 69 transitions, 294 flow [2024-11-10 17:52:35,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=294, PETRI_PLACES=88, PETRI_TRANSITIONS=69} [2024-11-10 17:52:35,542 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-11-10 17:52:35,542 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 69 transitions, 294 flow [2024-11-10 17:52:35,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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 17:52:35,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:35,543 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:35,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 17:52:35,543 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:35,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash -237235579, now seen corresponding path program 4 times [2024-11-10 17:52:35,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:35,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345060272] [2024-11-10 17:52:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:35,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:35,753 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 17:52:35,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:35,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345060272] [2024-11-10 17:52:35,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345060272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:35,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:35,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:52:35,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323132724] [2024-11-10 17:52:35,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:35,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:35,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:35,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:35,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:35,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 69 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:35,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:35,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:35,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:37,858 INFO L124 PetriNetUnfolderBase]: 20565/28729 cut-off events. [2024-11-10 17:52:37,859 INFO L125 PetriNetUnfolderBase]: For 33168/33169 co-relation queries the response was YES. [2024-11-10 17:52:37,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86604 conditions, 28729 events. 20565/28729 cut-off events. For 33168/33169 co-relation queries the response was YES. Maximal size of possible extension queue 947. Compared 168618 event pairs, 3173 based on Foata normal form. 16/28732 useless extension candidates. Maximal degree in co-relation 86583. Up to 15220 conditions per place. [2024-11-10 17:52:37,998 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 82 selfloop transitions, 1 changer transitions 62/152 dead transitions. [2024-11-10 17:52:37,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 152 transitions, 923 flow [2024-11-10 17:52:37,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:52:37,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:52:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-11-10 17:52:37,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-10 17:52:38,000 INFO L175 Difference]: Start difference. First operand has 88 places, 69 transitions, 294 flow. Second operand 6 states and 162 transitions. [2024-11-10 17:52:38,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 152 transitions, 923 flow [2024-11-10 17:52:38,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 152 transitions, 899 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-10 17:52:38,023 INFO L231 Difference]: Finished difference. Result has 85 places, 65 transitions, 268 flow [2024-11-10 17:52:38,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=85, PETRI_TRANSITIONS=65} [2024-11-10 17:52:38,024 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 24 predicate places. [2024-11-10 17:52:38,024 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 65 transitions, 268 flow [2024-11-10 17:52:38,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:38,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:38,024 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:38,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 17:52:38,024 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:38,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1937710491, now seen corresponding path program 5 times [2024-11-10 17:52:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:38,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335294954] [2024-11-10 17:52:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:38,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:52:38,229 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 17:52:38,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:52:38,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335294954] [2024-11-10 17:52:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335294954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:52:38,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:52:38,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:52:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864097134] [2024-11-10 17:52:38,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:52:38,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:52:38,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:52:38,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:52:38,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:52:38,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 17:52:38,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 65 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:38,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:52:38,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 17:52:38,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:52:39,958 INFO L124 PetriNetUnfolderBase]: 15979/22686 cut-off events. [2024-11-10 17:52:39,958 INFO L125 PetriNetUnfolderBase]: For 23739/23740 co-relation queries the response was YES. [2024-11-10 17:52:40,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66737 conditions, 22686 events. 15979/22686 cut-off events. For 23739/23740 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 130062 event pairs, 3515 based on Foata normal form. 16/22678 useless extension candidates. Maximal degree in co-relation 66716. Up to 11564 conditions per place. [2024-11-10 17:52:40,080 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 59 selfloop transitions, 1 changer transitions 67/134 dead transitions. [2024-11-10 17:52:40,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 134 transitions, 790 flow [2024-11-10 17:52:40,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:52:40,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:52:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-11-10 17:52:40,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4783950617283951 [2024-11-10 17:52:40,081 INFO L175 Difference]: Start difference. First operand has 85 places, 65 transitions, 268 flow. Second operand 6 states and 155 transitions. [2024-11-10 17:52:40,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 134 transitions, 790 flow [2024-11-10 17:52:40,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 134 transitions, 778 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 17:52:40,107 INFO L231 Difference]: Finished difference. Result has 86 places, 58 transitions, 228 flow [2024-11-10 17:52:40,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=86, PETRI_TRANSITIONS=58} [2024-11-10 17:52:40,108 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 25 predicate places. [2024-11-10 17:52:40,108 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 58 transitions, 228 flow [2024-11-10 17:52:40,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:52:40,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:52:40,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:52:40,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 17:52:40,109 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:52:40,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:52:40,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1758587629, now seen corresponding path program 6 times [2024-11-10 17:52:40,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:52:40,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552797908] [2024-11-10 17:52:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:52:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:52:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat