./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/triangular-longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/triangular-longer-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:38:07,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:38:07,144 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:38:07,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:38:07,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:38:07,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:38:07,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:38:07,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:38:07,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:38:07,167 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:38:07,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:38:07,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:38:07,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:38:07,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:38:07,167 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:38:07,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:38:07,168 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:38:07,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:38:07,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:38:07,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:38:07,169 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2025-01-10 00:38:07,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:38:07,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:38:07,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:38:07,418 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:38:07,418 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:38:07,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-1.i [2025-01-10 00:38:08,560 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6884bf9cf/59341a182e4f4109a6065a10756637a7/FLAGe14aaee01 [2025-01-10 00:38:08,797 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:38:08,797 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2025-01-10 00:38:08,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6884bf9cf/59341a182e4f4109a6065a10756637a7/FLAGe14aaee01 [2025-01-10 00:38:09,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6884bf9cf/59341a182e4f4109a6065a10756637a7 [2025-01-10 00:38:09,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:38:09,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:38:09,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:38:09,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:38:09,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:38:09,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc982b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09, skipping insertion in model container [2025-01-10 00:38:09,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:38:09,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:38:09,415 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:38:09,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:38:09,486 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:38:09,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09 WrapperNode [2025-01-10 00:38:09,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:38:09,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:38:09,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:38:09,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:38:09,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,514 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2025-01-10 00:38:09,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:38:09,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:38:09,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:38:09,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:38:09,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,522 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,531 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]. [2025-01-10 00:38:09,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,534 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:38:09,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:38:09,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:38:09,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:38:09,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (1/1) ... [2025-01-10 00:38:09,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:38:09,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:09,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:38:09,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:38:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-01-10 00:38:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-01-10 00:38:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-01-10 00:38:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-01-10 00:38:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 00:38:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:38:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 00:38:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 00:38:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:38:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:38:09,583 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 00:38:09,672 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:38:09,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:38:09,751 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 00:38:09,752 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:38:09,804 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:38:09,804 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 00:38:09,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:38:09 BoogieIcfgContainer [2025-01-10 00:38:09,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:38:09,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:38:09,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:38:09,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:38:09,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:38:09" (1/3) ... [2025-01-10 00:38:09,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263c8955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:38:09, skipping insertion in model container [2025-01-10 00:38:09,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:38:09" (2/3) ... [2025-01-10 00:38:09,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263c8955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:38:09, skipping insertion in model container [2025-01-10 00:38:09,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:38:09" (3/3) ... [2025-01-10 00:38:09,815 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2025-01-10 00:38:09,826 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:38:09,827 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longer-1.i that has 3 procedures, 26 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-01-10 00:38:09,827 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 00:38:09,868 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 00:38:09,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2025-01-10 00:38:09,914 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2025-01-10 00:38:09,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:38:09,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-01-10 00:38:09,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2025-01-10 00:38:09,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2025-01-10 00:38:09,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:38:09,937 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;@7d10ddca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:38:09,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-10 00:38:09,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 00:38:09,944 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2025-01-10 00:38:09,944 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:38:09,944 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:09,945 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:09,945 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:09,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1254529802, now seen corresponding path program 1 times [2025-01-10 00:38:09,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:09,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760521684] [2025-01-10 00:38:09,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:10,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:38:10,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:38:10,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:10,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:10,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:10,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760521684] [2025-01-10 00:38:10,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760521684] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:10,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:10,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 00:38:10,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970316791] [2025-01-10 00:38:10,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:10,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:38:10,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:10,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:38:10,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:38:10,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2025-01-10 00:38:10,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2025-01-10 00:38:10,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:10,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2025-01-10 00:38:10,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:10,197 INFO L124 PetriNetUnfolderBase]: 70/157 cut-off events. [2025-01-10 00:38:10,197 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 00:38:10,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 157 events. 70/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 553 event pairs, 44 based on Foata normal form. 15/161 useless extension candidates. Maximal degree in co-relation 272. Up to 113 conditions per place. [2025-01-10 00:38:10,201 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 11 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2025-01-10 00:38:10,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 78 flow [2025-01-10 00:38:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:38:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:38:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2025-01-10 00:38:10,211 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2025-01-10 00:38:10,212 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 52 transitions. [2025-01-10 00:38:10,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 78 flow [2025-01-10 00:38:10,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:38:10,216 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2025-01-10 00:38:10,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2025-01-10 00:38:10,220 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2025-01-10 00:38:10,222 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2025-01-10 00:38:10,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2025-01-10 00:38:10,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:10,223 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:10,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 00:38:10,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:10,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:10,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1254530874, now seen corresponding path program 1 times [2025-01-10 00:38:10,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:10,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581452010] [2025-01-10 00:38:10,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:10,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:10,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:38:10,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:38:10,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:10,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:10,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:10,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:10,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581452010] [2025-01-10 00:38:10,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581452010] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:10,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:10,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:38:10,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772267856] [2025-01-10 00:38:10,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:10,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:38:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:10,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:38:10,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:38:10,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:10,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-01-10 00:38:10,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:10,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:10,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:10,608 INFO L124 PetriNetUnfolderBase]: 273/487 cut-off events. [2025-01-10 00:38:10,608 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:38:10,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 487 events. 273/487 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1993 event pairs, 45 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 921. Up to 181 conditions per place. [2025-01-10 00:38:10,611 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 4 changer transitions 21/54 dead transitions. [2025-01-10 00:38:10,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 54 transitions, 212 flow [2025-01-10 00:38:10,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:38:10,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 00:38:10,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2025-01-10 00:38:10,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2025-01-10 00:38:10,612 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 6 states and 99 transitions. [2025-01-10 00:38:10,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 54 transitions, 212 flow [2025-01-10 00:38:10,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 54 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 00:38:10,613 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 74 flow [2025-01-10 00:38:10,613 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2025-01-10 00:38:10,614 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2025-01-10 00:38:10,614 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 74 flow [2025-01-10 00:38:10,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-01-10 00:38:10,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:10,614 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:10,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 00:38:10,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:10,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1511542372, now seen corresponding path program 1 times [2025-01-10 00:38:10,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:10,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657041673] [2025-01-10 00:38:10,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:10,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:10,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:38:10,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:38:10,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:10,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:10,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:10,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657041673] [2025-01-10 00:38:10,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657041673] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:10,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:10,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 00:38:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639884529] [2025-01-10 00:38:10,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:10,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 00:38:10,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:10,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 00:38:10,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:38:10,757 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:10,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2025-01-10 00:38:10,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:10,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:10,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:10,938 INFO L124 PetriNetUnfolderBase]: 382/704 cut-off events. [2025-01-10 00:38:10,938 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2025-01-10 00:38:10,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 704 events. 382/704 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3070 event pairs, 65 based on Foata normal form. 27/727 useless extension candidates. Maximal degree in co-relation 1591. Up to 246 conditions per place. [2025-01-10 00:38:10,943 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 9 changer transitions 20/79 dead transitions. [2025-01-10 00:38:10,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 79 transitions, 382 flow [2025-01-10 00:38:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 00:38:10,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 00:38:10,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2025-01-10 00:38:10,947 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2025-01-10 00:38:10,947 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 74 flow. Second operand 9 states and 144 transitions. [2025-01-10 00:38:10,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 79 transitions, 382 flow [2025-01-10 00:38:10,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 79 transitions, 366 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-01-10 00:38:10,952 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 159 flow [2025-01-10 00:38:10,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2025-01-10 00:38:10,953 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2025-01-10 00:38:10,954 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 159 flow [2025-01-10 00:38:10,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2025-01-10 00:38:10,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:10,954 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:10,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 00:38:10,954 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:10,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1394530660, now seen corresponding path program 2 times [2025-01-10 00:38:10,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:10,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987943626] [2025-01-10 00:38:10,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:38:10,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:10,962 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:38:10,966 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:38:10,969 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 00:38:10,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:11,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:11,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987943626] [2025-01-10 00:38:11,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987943626] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:11,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:11,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 00:38:11,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800448376] [2025-01-10 00:38:11,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:11,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 00:38:11,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:11,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 00:38:11,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:38:11,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:11,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2025-01-10 00:38:11,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:11,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:11,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:11,218 INFO L124 PetriNetUnfolderBase]: 328/611 cut-off events. [2025-01-10 00:38:11,218 INFO L125 PetriNetUnfolderBase]: For 971/971 co-relation queries the response was YES. [2025-01-10 00:38:11,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 611 events. 328/611 cut-off events. For 971/971 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2591 event pairs, 65 based on Foata normal form. 45/652 useless extension candidates. Maximal degree in co-relation 1723. Up to 234 conditions per place. [2025-01-10 00:38:11,222 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 9 changer transitions 28/79 dead transitions. [2025-01-10 00:38:11,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 499 flow [2025-01-10 00:38:11,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:38:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 00:38:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2025-01-10 00:38:11,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2025-01-10 00:38:11,223 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 159 flow. Second operand 8 states and 127 transitions. [2025-01-10 00:38:11,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 499 flow [2025-01-10 00:38:11,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 491 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-01-10 00:38:11,229 INFO L231 Difference]: Finished difference. Result has 51 places, 34 transitions, 213 flow [2025-01-10 00:38:11,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=213, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2025-01-10 00:38:11,230 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2025-01-10 00:38:11,230 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 213 flow [2025-01-10 00:38:11,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2025-01-10 00:38:11,231 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:11,231 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:11,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 00:38:11,231 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:11,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:11,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1228011379, now seen corresponding path program 1 times [2025-01-10 00:38:11,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:11,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219549200] [2025-01-10 00:38:11,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:11,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:11,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 00:38:11,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 00:38:11,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:11,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:11,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:11,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219549200] [2025-01-10 00:38:11,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219549200] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:11,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:11,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:38:11,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805210176] [2025-01-10 00:38:11,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:11,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:38:11,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:11,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:38:11,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:38:11,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:11,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 34 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2025-01-10 00:38:11,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:11,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:11,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:11,512 INFO L124 PetriNetUnfolderBase]: 355/662 cut-off events. [2025-01-10 00:38:11,512 INFO L125 PetriNetUnfolderBase]: For 1747/1747 co-relation queries the response was YES. [2025-01-10 00:38:11,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 662 events. 355/662 cut-off events. For 1747/1747 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2901 event pairs, 86 based on Foata normal form. 18/676 useless extension candidates. Maximal degree in co-relation 2046. Up to 258 conditions per place. [2025-01-10 00:38:11,516 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 16 changer transitions 21/84 dead transitions. [2025-01-10 00:38:11,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 600 flow [2025-01-10 00:38:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 00:38:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 00:38:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2025-01-10 00:38:11,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2025-01-10 00:38:11,517 INFO L175 Difference]: Start difference. First operand has 51 places, 34 transitions, 213 flow. Second operand 9 states and 140 transitions. [2025-01-10 00:38:11,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 600 flow [2025-01-10 00:38:11,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 84 transitions, 530 flow, removed 24 selfloop flow, removed 7 redundant places. [2025-01-10 00:38:11,523 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 300 flow [2025-01-10 00:38:11,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=300, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-01-10 00:38:11,523 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2025-01-10 00:38:11,524 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 300 flow [2025-01-10 00:38:11,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2025-01-10 00:38:11,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:11,524 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:11,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 00:38:11,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:11,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:11,525 INFO L85 PathProgramCache]: Analyzing trace with hash -511388409, now seen corresponding path program 2 times [2025-01-10 00:38:11,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:11,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015538647] [2025-01-10 00:38:11,525 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:38:11,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:11,529 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-01-10 00:38:11,532 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 00:38:11,532 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 00:38:11,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:11,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:11,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015538647] [2025-01-10 00:38:11,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015538647] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:11,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:11,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:38:11,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640051896] [2025-01-10 00:38:11,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:11,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:38:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:11,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:38:11,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:38:11,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:11,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2025-01-10 00:38:11,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:11,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:11,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:11,807 INFO L124 PetriNetUnfolderBase]: 427/790 cut-off events. [2025-01-10 00:38:11,808 INFO L125 PetriNetUnfolderBase]: For 2386/2386 co-relation queries the response was YES. [2025-01-10 00:38:11,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2560 conditions, 790 events. 427/790 cut-off events. For 2386/2386 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3509 event pairs, 71 based on Foata normal form. 27/811 useless extension candidates. Maximal degree in co-relation 2536. Up to 223 conditions per place. [2025-01-10 00:38:11,812 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 20 changer transitions 28/95 dead transitions. [2025-01-10 00:38:11,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 710 flow [2025-01-10 00:38:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:38:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 00:38:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-01-10 00:38:11,813 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-01-10 00:38:11,813 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 300 flow. Second operand 10 states and 155 transitions. [2025-01-10 00:38:11,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 710 flow [2025-01-10 00:38:11,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 664 flow, removed 19 selfloop flow, removed 3 redundant places. [2025-01-10 00:38:11,822 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 381 flow [2025-01-10 00:38:11,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=381, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2025-01-10 00:38:11,823 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2025-01-10 00:38:11,823 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 381 flow [2025-01-10 00:38:11,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2025-01-10 00:38:11,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:11,823 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:11,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 00:38:11,823 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:11,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1580582322, now seen corresponding path program 1 times [2025-01-10 00:38:11,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:11,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543340777] [2025-01-10 00:38:11,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:11,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:11,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:38:11,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:38:11,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:11,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:11,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:11,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:11,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543340777] [2025-01-10 00:38:11,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543340777] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:11,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:11,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 00:38:11,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965152777] [2025-01-10 00:38:11,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:11,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:38:11,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:11,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:38:11,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:38:11,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:11,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 381 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-01-10 00:38:11,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:11,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:11,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:12,129 INFO L124 PetriNetUnfolderBase]: 454/841 cut-off events. [2025-01-10 00:38:12,129 INFO L125 PetriNetUnfolderBase]: For 3899/3899 co-relation queries the response was YES. [2025-01-10 00:38:12,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3049 conditions, 841 events. 454/841 cut-off events. For 3899/3899 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3796 event pairs, 59 based on Foata normal form. 18/853 useless extension candidates. Maximal degree in co-relation 3020. Up to 157 conditions per place. [2025-01-10 00:38:12,134 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 44 selfloop transitions, 26 changer transitions 23/97 dead transitions. [2025-01-10 00:38:12,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 97 transitions, 833 flow [2025-01-10 00:38:12,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:38:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 00:38:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-01-10 00:38:12,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-01-10 00:38:12,135 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 381 flow. Second operand 10 states and 155 transitions. [2025-01-10 00:38:12,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 97 transitions, 833 flow [2025-01-10 00:38:12,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 97 transitions, 790 flow, removed 13 selfloop flow, removed 5 redundant places. [2025-01-10 00:38:12,146 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 476 flow [2025-01-10 00:38:12,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=476, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2025-01-10 00:38:12,147 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 39 predicate places. [2025-01-10 00:38:12,147 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 476 flow [2025-01-10 00:38:12,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-01-10 00:38:12,147 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:12,147 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:12,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 00:38:12,147 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:12,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash -148884609, now seen corresponding path program 1 times [2025-01-10 00:38:12,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:12,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045918640] [2025-01-10 00:38:12,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:12,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:12,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:38:12,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:38:12,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:12,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:12,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:12,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045918640] [2025-01-10 00:38:12,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045918640] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:12,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760145845] [2025-01-10 00:38:12,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:12,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:12,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:12,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:12,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 00:38:12,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:38:12,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:38:12,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:12,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:12,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 00:38:12,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:12,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:12,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:12,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:12,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760145845] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:12,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:12,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2025-01-10 00:38:12,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020679016] [2025-01-10 00:38:12,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:12,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 00:38:12,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:12,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 00:38:12,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-01-10 00:38:12,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:12,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 476 flow. Second operand has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 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) [2025-01-10 00:38:12,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:12,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:12,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:12,899 INFO L124 PetriNetUnfolderBase]: 598/1118 cut-off events. [2025-01-10 00:38:12,899 INFO L125 PetriNetUnfolderBase]: For 8677/8677 co-relation queries the response was YES. [2025-01-10 00:38:12,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4567 conditions, 1118 events. 598/1118 cut-off events. For 8677/8677 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4868 event pairs, 149 based on Foata normal form. 63/1177 useless extension candidates. Maximal degree in co-relation 4536. Up to 504 conditions per place. [2025-01-10 00:38:12,906 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 65 selfloop transitions, 19 changer transitions 67/155 dead transitions. [2025-01-10 00:38:12,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 155 transitions, 1480 flow [2025-01-10 00:38:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-10 00:38:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-01-10 00:38:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 288 transitions. [2025-01-10 00:38:12,908 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5226860254083484 [2025-01-10 00:38:12,908 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 476 flow. Second operand 19 states and 288 transitions. [2025-01-10 00:38:12,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 155 transitions, 1480 flow [2025-01-10 00:38:12,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 155 transitions, 1386 flow, removed 30 selfloop flow, removed 7 redundant places. [2025-01-10 00:38:12,921 INFO L231 Difference]: Finished difference. Result has 91 places, 55 transitions, 603 flow [2025-01-10 00:38:12,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=603, PETRI_PLACES=91, PETRI_TRANSITIONS=55} [2025-01-10 00:38:12,922 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 61 predicate places. [2025-01-10 00:38:12,923 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 55 transitions, 603 flow [2025-01-10 00:38:12,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 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) [2025-01-10 00:38:12,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:12,923 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:12,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 00:38:13,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:13,124 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:13,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash 84903677, now seen corresponding path program 2 times [2025-01-10 00:38:13,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:13,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007059465] [2025-01-10 00:38:13,125 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:38:13,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:13,128 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:38:13,131 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:38:13,131 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 00:38:13,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:13,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:13,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007059465] [2025-01-10 00:38:13,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007059465] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:13,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:38:13,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 00:38:13,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764966314] [2025-01-10 00:38:13,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:13,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:38:13,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:13,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:38:13,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:38:13,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:13,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 55 transitions, 603 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-01-10 00:38:13,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:13,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:13,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:13,442 INFO L124 PetriNetUnfolderBase]: 679/1294 cut-off events. [2025-01-10 00:38:13,442 INFO L125 PetriNetUnfolderBase]: For 21747/21747 co-relation queries the response was YES. [2025-01-10 00:38:13,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6538 conditions, 1294 events. 679/1294 cut-off events. For 21747/21747 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6301 event pairs, 144 based on Foata normal form. 27/1317 useless extension candidates. Maximal degree in co-relation 6496. Up to 501 conditions per place. [2025-01-10 00:38:13,449 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 77 selfloop transitions, 25 changer transitions 31/137 dead transitions. [2025-01-10 00:38:13,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 137 transitions, 1627 flow [2025-01-10 00:38:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 00:38:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 00:38:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 232 transitions. [2025-01-10 00:38:13,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2025-01-10 00:38:13,451 INFO L175 Difference]: Start difference. First operand has 91 places, 55 transitions, 603 flow. Second operand 15 states and 232 transitions. [2025-01-10 00:38:13,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 137 transitions, 1627 flow [2025-01-10 00:38:13,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 137 transitions, 1292 flow, removed 155 selfloop flow, removed 12 redundant places. [2025-01-10 00:38:13,469 INFO L231 Difference]: Finished difference. Result has 93 places, 61 transitions, 663 flow [2025-01-10 00:38:13,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=663, PETRI_PLACES=93, PETRI_TRANSITIONS=61} [2025-01-10 00:38:13,470 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 63 predicate places. [2025-01-10 00:38:13,470 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 61 transitions, 663 flow [2025-01-10 00:38:13,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-01-10 00:38:13,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:13,470 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:13,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 00:38:13,470 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:13,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:13,471 INFO L85 PathProgramCache]: Analyzing trace with hash 291278345, now seen corresponding path program 3 times [2025-01-10 00:38:13,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:13,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268846035] [2025-01-10 00:38:13,471 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 00:38:13,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:13,474 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-01-10 00:38:13,478 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:38:13,478 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-10 00:38:13,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:13,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:13,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268846035] [2025-01-10 00:38:13,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268846035] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:13,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449023592] [2025-01-10 00:38:13,545 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 00:38:13,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:13,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:13,548 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:13,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 00:38:13,577 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-01-10 00:38:13,587 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:38:13,587 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-10 00:38:13,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:13,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 00:38:13,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:13,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:13,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449023592] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:13,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:13,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-01-10 00:38:13,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540603751] [2025-01-10 00:38:13,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:13,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 00:38:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:13,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 00:38:13,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2025-01-10 00:38:13,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:13,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 61 transitions, 663 flow. Second operand has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 14 states have internal predecessors, (141), 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) [2025-01-10 00:38:13,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:13,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:13,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:14,229 INFO L124 PetriNetUnfolderBase]: 868/1597 cut-off events. [2025-01-10 00:38:14,229 INFO L125 PetriNetUnfolderBase]: For 25643/25643 co-relation queries the response was YES. [2025-01-10 00:38:14,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8202 conditions, 1597 events. 868/1597 cut-off events. For 25643/25643 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7774 event pairs, 46 based on Foata normal form. 81/1674 useless extension candidates. Maximal degree in co-relation 8160. Up to 252 conditions per place. [2025-01-10 00:38:14,238 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 79 selfloop transitions, 52 changer transitions 83/218 dead transitions. [2025-01-10 00:38:14,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 218 transitions, 2587 flow [2025-01-10 00:38:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-10 00:38:14,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2025-01-10 00:38:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 399 transitions. [2025-01-10 00:38:14,240 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5291777188328912 [2025-01-10 00:38:14,240 INFO L175 Difference]: Start difference. First operand has 93 places, 61 transitions, 663 flow. Second operand 26 states and 399 transitions. [2025-01-10 00:38:14,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 218 transitions, 2587 flow [2025-01-10 00:38:14,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 218 transitions, 2359 flow, removed 98 selfloop flow, removed 8 redundant places. [2025-01-10 00:38:14,261 INFO L231 Difference]: Finished difference. Result has 124 places, 74 transitions, 1062 flow [2025-01-10 00:38:14,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1062, PETRI_PLACES=124, PETRI_TRANSITIONS=74} [2025-01-10 00:38:14,262 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 94 predicate places. [2025-01-10 00:38:14,262 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 74 transitions, 1062 flow [2025-01-10 00:38:14,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 14 states have internal predecessors, (141), 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) [2025-01-10 00:38:14,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:14,262 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:14,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 00:38:14,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:14,466 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:14,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:14,467 INFO L85 PathProgramCache]: Analyzing trace with hash 349862773, now seen corresponding path program 1 times [2025-01-10 00:38:14,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:14,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546875038] [2025-01-10 00:38:14,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:14,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:14,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 00:38:14,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 00:38:14,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:14,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:14,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:14,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546875038] [2025-01-10 00:38:14,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546875038] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:14,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253002413] [2025-01-10 00:38:14,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:38:14,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:14,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:14,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:14,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 00:38:14,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 00:38:14,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 00:38:14,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:14,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:14,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-10 00:38:14,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:14,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:14,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253002413] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:14,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:14,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2025-01-10 00:38:14,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760929492] [2025-01-10 00:38:14,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:14,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 00:38:14,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:14,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 00:38:14,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2025-01-10 00:38:14,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:14,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 74 transitions, 1062 flow. Second operand has 18 states, 18 states have (on average 10.055555555555555) internal successors, (181), 18 states have internal predecessors, (181), 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) [2025-01-10 00:38:14,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:14,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:14,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:15,436 INFO L124 PetriNetUnfolderBase]: 1354/2484 cut-off events. [2025-01-10 00:38:15,436 INFO L125 PetriNetUnfolderBase]: For 81057/81057 co-relation queries the response was YES. [2025-01-10 00:38:15,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15748 conditions, 2484 events. 1354/2484 cut-off events. For 81057/81057 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 12307 event pairs, 83 based on Foata normal form. 63/2541 useless extension candidates. Maximal degree in co-relation 15693. Up to 450 conditions per place. [2025-01-10 00:38:15,451 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 97 selfloop transitions, 83 changer transitions 86/270 dead transitions. [2025-01-10 00:38:15,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 270 transitions, 4299 flow [2025-01-10 00:38:15,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-01-10 00:38:15,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2025-01-10 00:38:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 445 transitions. [2025-01-10 00:38:15,454 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5291319857312723 [2025-01-10 00:38:15,454 INFO L175 Difference]: Start difference. First operand has 124 places, 74 transitions, 1062 flow. Second operand 29 states and 445 transitions. [2025-01-10 00:38:15,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 270 transitions, 4299 flow [2025-01-10 00:38:15,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 270 transitions, 3532 flow, removed 357 selfloop flow, removed 18 redundant places. [2025-01-10 00:38:15,509 INFO L231 Difference]: Finished difference. Result has 146 places, 110 transitions, 1746 flow [2025-01-10 00:38:15,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=1746, PETRI_PLACES=146, PETRI_TRANSITIONS=110} [2025-01-10 00:38:15,511 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 116 predicate places. [2025-01-10 00:38:15,511 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 110 transitions, 1746 flow [2025-01-10 00:38:15,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.055555555555555) internal successors, (181), 18 states have internal predecessors, (181), 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) [2025-01-10 00:38:15,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:15,511 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:15,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 00:38:15,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:15,712 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:15,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:15,713 INFO L85 PathProgramCache]: Analyzing trace with hash 352932538, now seen corresponding path program 2 times [2025-01-10 00:38:15,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:15,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233150970] [2025-01-10 00:38:15,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:38:15,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:15,718 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 2 equivalence classes. [2025-01-10 00:38:15,722 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 00:38:15,722 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:38:15,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:15,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:15,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233150970] [2025-01-10 00:38:15,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233150970] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:15,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075336130] [2025-01-10 00:38:15,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:38:15,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:15,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:15,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:15,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 00:38:15,915 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 2 equivalence classes. [2025-01-10 00:38:15,924 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 00:38:15,924 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:38:15,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:15,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-10 00:38:15,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:16,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:16,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075336130] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:16,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:16,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2025-01-10 00:38:16,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130281393] [2025-01-10 00:38:16,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:16,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-10 00:38:16,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:16,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-10 00:38:16,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2025-01-10 00:38:16,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:16,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 110 transitions, 1746 flow. Second operand has 25 states, 25 states have (on average 10.2) internal successors, (255), 25 states have internal predecessors, (255), 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) [2025-01-10 00:38:16,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:16,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:16,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:17,151 INFO L124 PetriNetUnfolderBase]: 1588/2981 cut-off events. [2025-01-10 00:38:17,152 INFO L125 PetriNetUnfolderBase]: For 175194/175194 co-relation queries the response was YES. [2025-01-10 00:38:17,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22376 conditions, 2981 events. 1588/2981 cut-off events. For 175194/175194 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14438 event pairs, 467 based on Foata normal form. 117/3094 useless extension candidates. Maximal degree in co-relation 22311. Up to 1674 conditions per place. [2025-01-10 00:38:17,175 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 153 selfloop transitions, 37 changer transitions 133/327 dead transitions. [2025-01-10 00:38:17,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 327 transitions, 6395 flow [2025-01-10 00:38:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-10 00:38:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-01-10 00:38:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 552 transitions. [2025-01-10 00:38:17,177 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5144454799627214 [2025-01-10 00:38:17,177 INFO L175 Difference]: Start difference. First operand has 146 places, 110 transitions, 1746 flow. Second operand 37 states and 552 transitions. [2025-01-10 00:38:17,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 327 transitions, 6395 flow [2025-01-10 00:38:17,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 327 transitions, 4887 flow, removed 730 selfloop flow, removed 14 redundant places. [2025-01-10 00:38:17,280 INFO L231 Difference]: Finished difference. Result has 186 places, 124 transitions, 1930 flow [2025-01-10 00:38:17,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1250, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1930, PETRI_PLACES=186, PETRI_TRANSITIONS=124} [2025-01-10 00:38:17,280 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 156 predicate places. [2025-01-10 00:38:17,280 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 124 transitions, 1930 flow [2025-01-10 00:38:17,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.2) internal successors, (255), 25 states have internal predecessors, (255), 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) [2025-01-10 00:38:17,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:17,281 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:17,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-10 00:38:17,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-10 00:38:17,481 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:17,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:17,482 INFO L85 PathProgramCache]: Analyzing trace with hash 123854154, now seen corresponding path program 3 times [2025-01-10 00:38:17,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:17,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814129341] [2025-01-10 00:38:17,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 00:38:17,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:17,485 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 3 equivalence classes. [2025-01-10 00:38:17,489 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 00:38:17,489 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-10 00:38:17,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:17,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:17,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814129341] [2025-01-10 00:38:17,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814129341] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:17,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490454395] [2025-01-10 00:38:17,627 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 00:38:17,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:17,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:17,630 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:17,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 00:38:17,664 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 3 equivalence classes. [2025-01-10 00:38:17,675 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 00:38:17,675 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-10 00:38:17,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:17,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-10 00:38:17,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:17,756 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:17,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490454395] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:17,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:17,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2025-01-10 00:38:17,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327582286] [2025-01-10 00:38:17,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:17,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-10 00:38:17,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:17,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-10 00:38:17,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2025-01-10 00:38:17,997 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:17,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 124 transitions, 1930 flow. Second operand has 25 states, 25 states have (on average 10.2) internal successors, (255), 25 states have internal predecessors, (255), 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) [2025-01-10 00:38:17,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:17,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:17,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:19,023 INFO L124 PetriNetUnfolderBase]: 1984/3867 cut-off events. [2025-01-10 00:38:19,023 INFO L125 PetriNetUnfolderBase]: For 294643/294643 co-relation queries the response was YES. [2025-01-10 00:38:19,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30760 conditions, 3867 events. 1984/3867 cut-off events. For 294643/294643 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 21336 event pairs, 272 based on Foata normal form. 117/3980 useless extension candidates. Maximal degree in co-relation 30677. Up to 1102 conditions per place. [2025-01-10 00:38:19,048 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 153 selfloop transitions, 108 changer transitions 147/412 dead transitions. [2025-01-10 00:38:19,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 412 transitions, 8264 flow [2025-01-10 00:38:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-10 00:38:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-01-10 00:38:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 659 transitions. [2025-01-10 00:38:19,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5164576802507836 [2025-01-10 00:38:19,052 INFO L175 Difference]: Start difference. First operand has 186 places, 124 transitions, 1930 flow. Second operand 44 states and 659 transitions. [2025-01-10 00:38:19,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 412 transitions, 8264 flow [2025-01-10 00:38:19,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 412 transitions, 6993 flow, removed 613 selfloop flow, removed 24 redundant places. [2025-01-10 00:38:19,320 INFO L231 Difference]: Finished difference. Result has 218 places, 169 transitions, 2947 flow [2025-01-10 00:38:19,320 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1427, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=2947, PETRI_PLACES=218, PETRI_TRANSITIONS=169} [2025-01-10 00:38:19,321 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 188 predicate places. [2025-01-10 00:38:19,321 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 169 transitions, 2947 flow [2025-01-10 00:38:19,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.2) internal successors, (255), 25 states have internal predecessors, (255), 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) [2025-01-10 00:38:19,321 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:19,321 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:19,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 00:38:19,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-10 00:38:19,522 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:19,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1523069690, now seen corresponding path program 4 times [2025-01-10 00:38:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:19,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815791146] [2025-01-10 00:38:19,522 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 00:38:19,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:19,526 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 40 statements into 2 equivalence classes. [2025-01-10 00:38:19,530 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 00:38:19,530 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 00:38:19,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 00:38:19,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:19,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815791146] [2025-01-10 00:38:19,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815791146] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:19,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101429948] [2025-01-10 00:38:19,681 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 00:38:19,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:19,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:19,683 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:19,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 00:38:19,712 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 40 statements into 2 equivalence classes. [2025-01-10 00:38:19,721 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 00:38:19,721 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 00:38:19,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:19,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-10 00:38:19,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 00:38:19,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 00:38:19,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101429948] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:19,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:19,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-01-10 00:38:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336061318] [2025-01-10 00:38:19,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:19,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-10 00:38:19,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:19,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-10 00:38:19,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2025-01-10 00:38:19,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:19,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 169 transitions, 2947 flow. Second operand has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 26 states have internal predecessors, (266), 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) [2025-01-10 00:38:19,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:19,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:19,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:21,551 INFO L124 PetriNetUnfolderBase]: 3451/6619 cut-off events. [2025-01-10 00:38:21,552 INFO L125 PetriNetUnfolderBase]: For 701312/701312 co-relation queries the response was YES. [2025-01-10 00:38:21,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58068 conditions, 6619 events. 3451/6619 cut-off events. For 701312/701312 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 41594 event pairs, 144 based on Foata normal form. 126/6741 useless extension candidates. Maximal degree in co-relation 57972. Up to 1503 conditions per place. [2025-01-10 00:38:21,599 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 161 selfloop transitions, 237 changer transitions 162/564 dead transitions. [2025-01-10 00:38:21,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 564 transitions, 12852 flow [2025-01-10 00:38:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-01-10 00:38:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2025-01-10 00:38:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 757 transitions. [2025-01-10 00:38:21,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5220689655172414 [2025-01-10 00:38:21,603 INFO L175 Difference]: Start difference. First operand has 218 places, 169 transitions, 2947 flow. Second operand 50 states and 757 transitions. [2025-01-10 00:38:21,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 564 transitions, 12852 flow [2025-01-10 00:38:22,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 564 transitions, 11019 flow, removed 886 selfloop flow, removed 26 redundant places. [2025-01-10 00:38:22,491 INFO L231 Difference]: Finished difference. Result has 261 places, 281 transitions, 5546 flow [2025-01-10 00:38:22,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2232, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=5546, PETRI_PLACES=261, PETRI_TRANSITIONS=281} [2025-01-10 00:38:22,492 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 231 predicate places. [2025-01-10 00:38:22,493 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 281 transitions, 5546 flow [2025-01-10 00:38:22,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 26 states have internal predecessors, (266), 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) [2025-01-10 00:38:22,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:22,493 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:22,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 00:38:22,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-10 00:38:22,698 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:22,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:22,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2122657831, now seen corresponding path program 5 times [2025-01-10 00:38:22,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:22,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659180434] [2025-01-10 00:38:22,698 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 00:38:22,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:22,705 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 43 statements into 6 equivalence classes. [2025-01-10 00:38:22,713 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 00:38:22,714 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-10 00:38:22,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:22,844 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:22,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:22,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659180434] [2025-01-10 00:38:22,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659180434] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:22,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881092236] [2025-01-10 00:38:22,844 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 00:38:22,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:22,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:22,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:22,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 00:38:22,878 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 43 statements into 6 equivalence classes. [2025-01-10 00:38:22,889 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 00:38:22,889 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-10 00:38:22,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:22,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 00:38:22,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:22,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 00:38:23,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881092236] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:23,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:23,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 26 [2025-01-10 00:38:23,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53875274] [2025-01-10 00:38:23,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:23,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-01-10 00:38:23,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:23,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-01-10 00:38:23,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2025-01-10 00:38:23,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:23,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 281 transitions, 5546 flow. Second operand has 27 states, 27 states have (on average 10.222222222222221) internal successors, (276), 27 states have internal predecessors, (276), 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) [2025-01-10 00:38:23,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:23,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:23,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:25,547 INFO L124 PetriNetUnfolderBase]: 4693/8962 cut-off events. [2025-01-10 00:38:25,547 INFO L125 PetriNetUnfolderBase]: For 1553992/1553992 co-relation queries the response was YES. [2025-01-10 00:38:25,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95478 conditions, 8962 events. 4693/8962 cut-off events. For 1553992/1553992 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 57145 event pairs, 47 based on Foata normal form. 117/9073 useless extension candidates. Maximal degree in co-relation 95362. Up to 2046 conditions per place. [2025-01-10 00:38:25,624 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 193 selfloop transitions, 346 changer transitions 165/708 dead transitions. [2025-01-10 00:38:25,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 708 transitions, 20652 flow [2025-01-10 00:38:25,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-01-10 00:38:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2025-01-10 00:38:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 873 transitions. [2025-01-10 00:38:25,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5281306715063521 [2025-01-10 00:38:25,629 INFO L175 Difference]: Start difference. First operand has 261 places, 281 transitions, 5546 flow. Second operand 57 states and 873 transitions. [2025-01-10 00:38:25,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 708 transitions, 20652 flow [2025-01-10 00:38:27,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 708 transitions, 15074 flow, removed 2749 selfloop flow, removed 25 redundant places. [2025-01-10 00:38:27,536 INFO L231 Difference]: Finished difference. Result has 315 places, 377 transitions, 8082 flow [2025-01-10 00:38:27,536 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4160, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=8082, PETRI_PLACES=315, PETRI_TRANSITIONS=377} [2025-01-10 00:38:27,537 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 285 predicate places. [2025-01-10 00:38:27,537 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 377 transitions, 8082 flow [2025-01-10 00:38:27,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.222222222222221) internal successors, (276), 27 states have internal predecessors, (276), 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) [2025-01-10 00:38:27,537 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:27,537 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:27,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 00:38:27,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:27,742 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:27,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:27,743 INFO L85 PathProgramCache]: Analyzing trace with hash 100531253, now seen corresponding path program 6 times [2025-01-10 00:38:27,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:27,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055540517] [2025-01-10 00:38:27,743 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 00:38:27,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:27,748 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 67 statements into 6 equivalence classes. [2025-01-10 00:38:27,759 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 00:38:27,759 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-10 00:38:27,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055540517] [2025-01-10 00:38:28,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055540517] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79143774] [2025-01-10 00:38:28,146 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 00:38:28,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:28,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:28,149 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:28,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 00:38:28,216 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 67 statements into 6 equivalence classes. [2025-01-10 00:38:28,241 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 00:38:28,241 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-10 00:38:28,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:28,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-10 00:38:28,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:28,355 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:28,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:38:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:38:28,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79143774] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:38:28,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:38:28,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 30 [2025-01-10 00:38:28,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484150313] [2025-01-10 00:38:28,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:38:28,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-01-10 00:38:28,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:28,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-01-10 00:38:28,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=734, Unknown=0, NotChecked=0, Total=930 [2025-01-10 00:38:28,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 00:38:28,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 377 transitions, 8082 flow. Second operand has 31 states, 31 states have (on average 10.129032258064516) internal successors, (314), 31 states have internal predecessors, (314), 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) [2025-01-10 00:38:28,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:28,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 00:38:28,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:31,596 INFO L124 PetriNetUnfolderBase]: 5269/10068 cut-off events. [2025-01-10 00:38:31,596 INFO L125 PetriNetUnfolderBase]: For 2040955/2040955 co-relation queries the response was YES. [2025-01-10 00:38:31,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109913 conditions, 10068 events. 5269/10068 cut-off events. For 2040955/2040955 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 64562 event pairs, 46 based on Foata normal form. 108/10172 useless extension candidates. Maximal degree in co-relation 109772. Up to 2286 conditions per place. [2025-01-10 00:38:31,686 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 203 selfloop transitions, 401 changer transitions 151/759 dead transitions. [2025-01-10 00:38:31,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 759 transitions, 21208 flow [2025-01-10 00:38:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-01-10 00:38:31,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2025-01-10 00:38:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 879 transitions. [2025-01-10 00:38:31,688 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5225921521997622 [2025-01-10 00:38:31,688 INFO L175 Difference]: Start difference. First operand has 315 places, 377 transitions, 8082 flow. Second operand 58 states and 879 transitions. [2025-01-10 00:38:31,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 759 transitions, 21208 flow [2025-01-10 00:38:34,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 759 transitions, 16221 flow, removed 2441 selfloop flow, removed 25 redundant places. [2025-01-10 00:38:34,815 INFO L231 Difference]: Finished difference. Result has 351 places, 431 transitions, 8503 flow [2025-01-10 00:38:34,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6059, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=348, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=8503, PETRI_PLACES=351, PETRI_TRANSITIONS=431} [2025-01-10 00:38:34,816 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 321 predicate places. [2025-01-10 00:38:34,816 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 431 transitions, 8503 flow [2025-01-10 00:38:34,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.129032258064516) internal successors, (314), 31 states have internal predecessors, (314), 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) [2025-01-10 00:38:34,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:38:34,816 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:38:34,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-10 00:38:35,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-10 00:38:35,021 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 00:38:35,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:38:35,022 INFO L85 PathProgramCache]: Analyzing trace with hash -919426451, now seen corresponding path program 7 times [2025-01-10 00:38:35,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:38:35,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222155639] [2025-01-10 00:38:35,022 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-10 00:38:35,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:38:35,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-10 00:38:35,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-10 00:38:35,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:35,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 230 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-10 00:38:35,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:38:35,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222155639] [2025-01-10 00:38:35,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222155639] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:38:35,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126826253] [2025-01-10 00:38:35,146 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-10 00:38:35,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:35,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:38:35,148 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:38:35,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 00:38:35,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-10 00:38:35,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-10 00:38:35,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:38:35,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:38:35,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 00:38:35,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:38:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-10 00:38:35,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:38:35,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126826253] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:38:35,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 00:38:35,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2025-01-10 00:38:35,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387130775] [2025-01-10 00:38:35,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:38:35,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 00:38:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:38:35,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 00:38:35,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2025-01-10 00:38:35,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2025-01-10 00:38:35,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 431 transitions, 8503 flow. Second operand has 13 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 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) [2025-01-10 00:38:35,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:38:35,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2025-01-10 00:38:35,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:38:43,374 INFO L124 PetriNetUnfolderBase]: 19915/38784 cut-off events. [2025-01-10 00:38:43,374 INFO L125 PetriNetUnfolderBase]: For 5176188/5179821 co-relation queries the response was YES. [2025-01-10 00:38:44,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299356 conditions, 38784 events. 19915/38784 cut-off events. For 5176188/5179821 co-relation queries the response was YES. Maximal size of possible extension queue 1036. Compared 359191 event pairs, 983 based on Foata normal form. 698/34869 useless extension candidates. Maximal degree in co-relation 299218. Up to 7488 conditions per place. [2025-01-10 00:38:44,161 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 507/507 dead transitions. [2025-01-10 00:38:44,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 507 transitions, 7960 flow [2025-01-10 00:38:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 00:38:44,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-01-10 00:38:44,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 263 transitions. [2025-01-10 00:38:44,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6976127320954907 [2025-01-10 00:38:44,162 INFO L175 Difference]: Start difference. First operand has 351 places, 431 transitions, 8503 flow. Second operand 13 states and 263 transitions. [2025-01-10 00:38:44,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 507 transitions, 7960 flow [2025-01-10 00:38:51,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 507 transitions, 7187 flow, removed 261 selfloop flow, removed 33 redundant places. [2025-01-10 00:38:51,470 INFO L231 Difference]: Finished difference. Result has 318 places, 0 transitions, 0 flow [2025-01-10 00:38:51,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6765, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=318, PETRI_TRANSITIONS=0} [2025-01-10 00:38:51,471 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 288 predicate places. [2025-01-10 00:38:51,471 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 0 transitions, 0 flow [2025-01-10 00:38:51,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 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) [2025-01-10 00:38:51,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-01-10 00:38:51,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-01-10 00:38:51,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-01-10 00:38:51,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-01-10 00:38:51,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 00:38:51,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:38:51,677 INFO L422 BasicCegarLoop]: Path program histogram: [7, 3, 2, 2, 1, 1, 1] [2025-01-10 00:38:51,679 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 00:38:51,679 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 00:38:51,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:38:51 BasicIcfg [2025-01-10 00:38:51,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 00:38:51,686 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 00:38:51,686 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 00:38:51,686 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 00:38:51,686 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:38:09" (3/4) ... [2025-01-10 00:38:51,688 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 00:38:51,690 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2025-01-10 00:38:51,690 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2025-01-10 00:38:51,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2025-01-10 00:38:51,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-01-10 00:38:51,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-01-10 00:38:51,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 00:38:51,750 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 00:38:51,750 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 00:38:51,751 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 00:38:51,751 INFO L158 Benchmark]: Toolchain (without parser) took 42620.18ms. Allocated memory was 142.6MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 113.2MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-01-10 00:38:51,752 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:38:51,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.44ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 94.4MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:38:51,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.68ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:38:51,753 INFO L158 Benchmark]: Boogie Preprocessor took 22.87ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 00:38:51,753 INFO L158 Benchmark]: RCFGBuilder took 265.43ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 73.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:38:51,753 INFO L158 Benchmark]: TraceAbstraction took 41879.12ms. Allocated memory was 142.6MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 73.1MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2025-01-10 00:38:51,754 INFO L158 Benchmark]: Witness Printer took 65.13ms. Allocated memory is still 4.8GB. Free memory was 3.3GB in the beginning and 3.3GB in the end (delta: 5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:38:51,755 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.44ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 94.4MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.68ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.87ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 265.43ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 73.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 41879.12ms. Allocated memory was 142.6MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 73.1MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 65.13ms. Allocated memory is still 4.8GB. Free memory was 3.3GB in the beginning and 3.3GB in the end (delta: 5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 41.8s, OverallIterations: 17, TraceHistogramMax: 11, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 35.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4148 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4116 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6032 IncrementalHoareTripleChecker+Invalid, 6268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 236 mSolverCounterUnsat, 9 mSDtfsCounter, 6032 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1105 GetRequests, 571 SyntacticMatches, 15 SemanticMatches, 519 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7959 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8503occurred in iteration=16, InterpolantAutomatonStates: 403, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 1107 ConstructedInterpolants, 0 QuantifiedInterpolants, 4338 SizeOfPredicates, 75 NumberOfNonLiveVariables, 1144 ConjunctsInSsa, 128 ConjunctsInUnsatCore, 34 InterpolantComputations, 9 PerfectInterpolantSequences, 510/1581 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 00:38:51,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE