./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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-deagle/arithmetic_prog_ok.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 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:45:28,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:45:28,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:45:28,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:45:28,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:45:28,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:45:28,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:45:28,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:45:28,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:45:28,333 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:45:28,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:45:28,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:45:28,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:45:28,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:45:28,334 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:45:28,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:45:28,334 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:45:28,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:45:28,334 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:45:28,334 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:45:28,334 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:45:28,335 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:45:28,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:45:28,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:45:28,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:45:28,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:45:28,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:45:28,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:45:28,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:45:28,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:45:28,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:45:28,336 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 -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2025-02-08 08:45:28,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:45:28,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:45:28,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:45:28,526 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:45:28,526 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:45:28,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-02-08 08:45:29,743 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0b2e8aa0/121185e94e06420293c727b27d7b0a8f/FLAG38427fbe5 [2025-02-08 08:45:30,049 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:45:30,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-02-08 08:45:30,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0b2e8aa0/121185e94e06420293c727b27d7b0a8f/FLAG38427fbe5 [2025-02-08 08:45:30,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0b2e8aa0/121185e94e06420293c727b27d7b0a8f [2025-02-08 08:45:30,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:45:30,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:45:30,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:45:30,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:45:30,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:45:30,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4962ca68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30, skipping insertion in model container [2025-02-08 08:45:30,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:45:30,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:45:30,675 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:45:30,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:45:30,739 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:45:30,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30 WrapperNode [2025-02-08 08:45:30,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:45:30,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:45:30,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:45:30,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:45:30,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,778 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2025-02-08 08:45:30,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:45:30,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:45:30,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:45:30,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:45:30,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,787 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,795 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2025-02-08 08:45:30,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,802 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:45:30,807 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:45:30,807 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:45:30,807 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:45:30,808 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (1/1) ... [2025-02-08 08:45:30,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:45:30,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:30,843 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) [2025-02-08 08:45:30,846 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 [2025-02-08 08:45:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:45:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:45:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 08:45:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:45:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:45:30,864 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:45:30,968 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:45:30,969 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:45:31,308 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:45:31,309 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:45:31,950 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:45:31,951 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:45:31,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:45:31 BoogieIcfgContainer [2025-02-08 08:45:31,951 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:45:31,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:45:31,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:45:31,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:45:31,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:45:30" (1/3) ... [2025-02-08 08:45:31,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f723004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:45:31, skipping insertion in model container [2025-02-08 08:45:31,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:45:30" (2/3) ... [2025-02-08 08:45:31,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f723004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:45:31, skipping insertion in model container [2025-02-08 08:45:31,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:45:31" (3/3) ... [2025-02-08 08:45:31,957 INFO L128 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2025-02-08 08:45:31,967 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:45:31,968 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_ok.i that has 3 procedures, 37 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2025-02-08 08:45:31,968 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:45:32,011 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 08:45:32,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2025-02-08 08:45:32,061 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2025-02-08 08:45:32,063 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:45:32,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2025-02-08 08:45:32,066 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2025-02-08 08:45:32,068 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2025-02-08 08:45:32,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:45:32,086 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;@39e5da86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:45:32,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 08:45:32,103 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:45:32,104 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2025-02-08 08:45:32,104 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:45:32,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:32,104 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:32,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:32,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:32,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1003649640, now seen corresponding path program 1 times [2025-02-08 08:45:32,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:32,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687781051] [2025-02-08 08:45:32,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:45:32,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:32,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:45:32,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:45:32,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:32,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687781051] [2025-02-08 08:45:32,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687781051] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:32,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:32,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:45:32,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316918699] [2025-02-08 08:45:32,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:32,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:45:32,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:32,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:45:32,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:45:32,657 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-08 08:45:32,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2025-02-08 08:45:32,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:32,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-08 08:45:32,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:32,873 INFO L124 PetriNetUnfolderBase]: 430/787 cut-off events. [2025-02-08 08:45:32,873 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-02-08 08:45:32,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 787 events. 430/787 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3695 event pairs, 169 based on Foata normal form. 20/793 useless extension candidates. Maximal degree in co-relation 1424. Up to 400 conditions per place. [2025-02-08 08:45:32,881 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2025-02-08 08:45:32,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 205 flow [2025-02-08 08:45:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:45:32,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:45:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2025-02-08 08:45:32,891 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2025-02-08 08:45:32,892 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 92 flow. Second operand 3 states and 89 transitions. [2025-02-08 08:45:32,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 205 flow [2025-02-08 08:45:32,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:45:32,901 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 90 flow [2025-02-08 08:45:32,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2025-02-08 08:45:32,906 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2025-02-08 08:45:32,906 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 90 flow [2025-02-08 08:45:32,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2025-02-08 08:45:32,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:32,907 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:32,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:45:32,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:32,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1644456246, now seen corresponding path program 1 times [2025-02-08 08:45:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:32,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671470889] [2025-02-08 08:45:32,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:45:32,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:33,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:45:33,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:45:33,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:33,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:45:33,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:33,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671470889] [2025-02-08 08:45:33,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671470889] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:33,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:33,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:45:33,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134498751] [2025-02-08 08:45:33,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:33,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:45:33,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:33,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:45:33,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:45:33,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-08 08:45:33,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2025-02-08 08:45:33,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:33,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-08 08:45:33,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:33,443 INFO L124 PetriNetUnfolderBase]: 731/1321 cut-off events. [2025-02-08 08:45:33,443 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2025-02-08 08:45:33,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2592 conditions, 1321 events. 731/1321 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6718 event pairs, 294 based on Foata normal form. 29/1333 useless extension candidates. Maximal degree in co-relation 946. Up to 681 conditions per place. [2025-02-08 08:45:33,449 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 40 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2025-02-08 08:45:33,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 219 flow [2025-02-08 08:45:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:45:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:45:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2025-02-08 08:45:33,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 08:45:33,450 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 90 flow. Second operand 3 states and 86 transitions. [2025-02-08 08:45:33,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 219 flow [2025-02-08 08:45:33,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:45:33,452 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 100 flow [2025-02-08 08:45:33,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2025-02-08 08:45:33,452 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2025-02-08 08:45:33,452 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 100 flow [2025-02-08 08:45:33,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2025-02-08 08:45:33,452 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:33,452 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:33,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:45:33,453 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:33,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2032421898, now seen corresponding path program 1 times [2025-02-08 08:45:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:33,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039442504] [2025-02-08 08:45:33,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:45:33,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:33,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 08:45:33,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 08:45:33,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:33,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:33,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:33,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039442504] [2025-02-08 08:45:33,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039442504] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:33,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:33,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:45:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694194290] [2025-02-08 08:45:33,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:33,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:45:33,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:33,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:45:33,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:45:33,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-08 08:45:33,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2025-02-08 08:45:33,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:33,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-08 08:45:33,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:33,864 INFO L124 PetriNetUnfolderBase]: 428/905 cut-off events. [2025-02-08 08:45:33,865 INFO L125 PetriNetUnfolderBase]: For 191/191 co-relation queries the response was YES. [2025-02-08 08:45:33,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 905 events. 428/905 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4348 event pairs, 182 based on Foata normal form. 64/967 useless extension candidates. Maximal degree in co-relation 610. Up to 373 conditions per place. [2025-02-08 08:45:33,869 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2025-02-08 08:45:33,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 220 flow [2025-02-08 08:45:33,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:45:33,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:45:33,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-02-08 08:45:33,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2025-02-08 08:45:33,871 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 100 flow. Second operand 3 states and 83 transitions. [2025-02-08 08:45:33,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 220 flow [2025-02-08 08:45:33,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:45:33,873 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 114 flow [2025-02-08 08:45:33,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2025-02-08 08:45:33,874 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2025-02-08 08:45:33,875 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 114 flow [2025-02-08 08:45:33,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2025-02-08 08:45:33,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:33,875 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:33,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:45:33,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:33,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2010261132, now seen corresponding path program 2 times [2025-02-08 08:45:33,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:33,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648820737] [2025-02-08 08:45:33,876 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:45:33,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:34,036 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-02-08 08:45:34,045 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 08:45:34,045 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:45:34,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:34,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:34,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648820737] [2025-02-08 08:45:34,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648820737] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:34,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:34,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:45:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733779744] [2025-02-08 08:45:34,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:34,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:45:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:34,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:45:34,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:45:34,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-08 08:45:34,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:45:34,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:34,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-08 08:45:34,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:34,241 INFO L124 PetriNetUnfolderBase]: 627/1306 cut-off events. [2025-02-08 08:45:34,242 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2025-02-08 08:45:34,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3080 conditions, 1306 events. 627/1306 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6838 event pairs, 183 based on Foata normal form. 30/1316 useless extension candidates. Maximal degree in co-relation 762. Up to 480 conditions per place. [2025-02-08 08:45:34,247 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 58 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2025-02-08 08:45:34,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 74 transitions, 358 flow [2025-02-08 08:45:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:45:34,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:45:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2025-02-08 08:45:34,248 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6918604651162791 [2025-02-08 08:45:34,248 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 114 flow. Second operand 4 states and 119 transitions. [2025-02-08 08:45:34,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 74 transitions, 358 flow [2025-02-08 08:45:34,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 74 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:45:34,250 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 122 flow [2025-02-08 08:45:34,250 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2025-02-08 08:45:34,251 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2025-02-08 08:45:34,251 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 122 flow [2025-02-08 08:45:34,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:45:34,251 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:34,251 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:34,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:45:34,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:34,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1915013082, now seen corresponding path program 3 times [2025-02-08 08:45:34,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:34,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491134126] [2025-02-08 08:45:34,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:45:34,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:34,434 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 3 equivalence classes. [2025-02-08 08:45:34,441 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 20 of 32 statements. [2025-02-08 08:45:34,441 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:45:34,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-08 08:45:34,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:34,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491134126] [2025-02-08 08:45:34,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491134126] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:34,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:34,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:45:34,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079336077] [2025-02-08 08:45:34,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:34,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:45:34,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:34,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:45:34,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:45:34,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-08 08:45:34,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:45:34,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:34,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-08 08:45:34,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:34,714 INFO L124 PetriNetUnfolderBase]: 849/1796 cut-off events. [2025-02-08 08:45:34,714 INFO L125 PetriNetUnfolderBase]: For 834/834 co-relation queries the response was YES. [2025-02-08 08:45:34,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4138 conditions, 1796 events. 849/1796 cut-off events. For 834/834 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9912 event pairs, 258 based on Foata normal form. 41/1814 useless extension candidates. Maximal degree in co-relation 1304. Up to 667 conditions per place. [2025-02-08 08:45:34,722 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 59 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2025-02-08 08:45:34,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 75 transitions, 380 flow [2025-02-08 08:45:34,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:45:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:45:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2025-02-08 08:45:34,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6802325581395349 [2025-02-08 08:45:34,723 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 122 flow. Second operand 4 states and 117 transitions. [2025-02-08 08:45:34,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 75 transitions, 380 flow [2025-02-08 08:45:34,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 75 transitions, 362 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-08 08:45:34,725 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 132 flow [2025-02-08 08:45:34,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2025-02-08 08:45:34,725 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-02-08 08:45:34,725 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 132 flow [2025-02-08 08:45:34,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:45:34,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:34,726 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:34,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:45:34,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:34,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:34,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1287642824, now seen corresponding path program 4 times [2025-02-08 08:45:34,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:34,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330274183] [2025-02-08 08:45:34,726 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:45:34,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:34,886 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 38 statements into 2 equivalence classes. [2025-02-08 08:45:34,889 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 37 of 38 statements. [2025-02-08 08:45:34,889 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 08:45:34,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 08:45:34,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:34,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330274183] [2025-02-08 08:45:34,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330274183] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:34,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:34,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:45:34,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929897028] [2025-02-08 08:45:34,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:34,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:45:34,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:34,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:45:34,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:45:34,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-08 08:45:34,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2025-02-08 08:45:34,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:34,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-08 08:45:34,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:35,058 INFO L124 PetriNetUnfolderBase]: 870/1810 cut-off events. [2025-02-08 08:45:35,059 INFO L125 PetriNetUnfolderBase]: For 861/861 co-relation queries the response was YES. [2025-02-08 08:45:35,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4311 conditions, 1810 events. 870/1810 cut-off events. For 861/861 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9858 event pairs, 566 based on Foata normal form. 1/1789 useless extension candidates. Maximal degree in co-relation 1523. Up to 1348 conditions per place. [2025-02-08 08:45:35,067 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 39 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2025-02-08 08:45:35,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 52 transitions, 255 flow [2025-02-08 08:45:35,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:45:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:45:35,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2025-02-08 08:45:35,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2025-02-08 08:45:35,070 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 132 flow. Second operand 3 states and 77 transitions. [2025-02-08 08:45:35,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 52 transitions, 255 flow [2025-02-08 08:45:35,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 249 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 08:45:35,073 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 126 flow [2025-02-08 08:45:35,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2025-02-08 08:45:35,074 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-02-08 08:45:35,075 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 126 flow [2025-02-08 08:45:35,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2025-02-08 08:45:35,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:35,075 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:35,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:45:35,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:35,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:35,076 INFO L85 PathProgramCache]: Analyzing trace with hash 605938396, now seen corresponding path program 1 times [2025-02-08 08:45:35,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:35,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783934375] [2025-02-08 08:45:35,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:45:35,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:35,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 08:45:35,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 08:45:35,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:35,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-08 08:45:35,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:35,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783934375] [2025-02-08 08:45:35,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783934375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:35,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:35,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:45:35,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034055875] [2025-02-08 08:45:35,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:35,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:45:35,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:35,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:45:35,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:45:35,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-08 08:45:35,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2025-02-08 08:45:35,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:35,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-08 08:45:35,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:35,573 INFO L124 PetriNetUnfolderBase]: 874/1808 cut-off events. [2025-02-08 08:45:35,577 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2025-02-08 08:45:35,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4254 conditions, 1808 events. 874/1808 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9879 event pairs, 626 based on Foata normal form. 1/1778 useless extension candidates. Maximal degree in co-relation 3852. Up to 1470 conditions per place. [2025-02-08 08:45:35,590 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 27 selfloop transitions, 1 changer transitions 2/39 dead transitions. [2025-02-08 08:45:35,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 180 flow [2025-02-08 08:45:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:45:35,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:45:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2025-02-08 08:45:35,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2025-02-08 08:45:35,598 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 126 flow. Second operand 3 states and 67 transitions. [2025-02-08 08:45:35,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 180 flow [2025-02-08 08:45:35,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:45:35,601 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 121 flow [2025-02-08 08:45:35,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2025-02-08 08:45:35,602 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-02-08 08:45:35,602 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 121 flow [2025-02-08 08:45:35,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2025-02-08 08:45:35,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:35,602 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:35,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:45:35,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:35,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:35,606 INFO L85 PathProgramCache]: Analyzing trace with hash 27523851, now seen corresponding path program 1 times [2025-02-08 08:45:35,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:35,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067538633] [2025-02-08 08:45:35,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:45:35,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:35,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 08:45:35,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 08:45:35,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:35,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:45:36,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:36,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067538633] [2025-02-08 08:45:36,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067538633] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:45:36,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48213044] [2025-02-08 08:45:36,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:45:36,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:36,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:36,014 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) [2025-02-08 08:45:36,017 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 [2025-02-08 08:45:36,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 08:45:36,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 08:45:36,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:36,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:36,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:45:36,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:45:36,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:45:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:45:36,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48213044] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:45:36,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:45:36,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-08 08:45:36,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307594549] [2025-02-08 08:45:36,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:45:36,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:45:36,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:36,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:45:36,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:45:36,480 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-08 08:45:36,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 121 flow. Second operand has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2025-02-08 08:45:36,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:36,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-08 08:45:36,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:36,805 INFO L124 PetriNetUnfolderBase]: 1429/2782 cut-off events. [2025-02-08 08:45:36,805 INFO L125 PetriNetUnfolderBase]: For 1041/1041 co-relation queries the response was YES. [2025-02-08 08:45:36,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6540 conditions, 2782 events. 1429/2782 cut-off events. For 1041/1041 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 15028 event pairs, 191 based on Foata normal form. 84/2850 useless extension candidates. Maximal degree in co-relation 6529. Up to 547 conditions per place. [2025-02-08 08:45:36,817 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 95 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2025-02-08 08:45:36,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 109 transitions, 571 flow [2025-02-08 08:45:36,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:45:36,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:45:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2025-02-08 08:45:36,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2025-02-08 08:45:36,819 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 121 flow. Second operand 6 states and 177 transitions. [2025-02-08 08:45:36,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 109 transitions, 571 flow [2025-02-08 08:45:36,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 109 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:45:36,821 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 154 flow [2025-02-08 08:45:36,821 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2025-02-08 08:45:36,822 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2025-02-08 08:45:36,822 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 154 flow [2025-02-08 08:45:36,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2025-02-08 08:45:36,822 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:36,822 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:36,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:45:37,023 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 [2025-02-08 08:45:37,024 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:37,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:37,024 INFO L85 PathProgramCache]: Analyzing trace with hash -546364455, now seen corresponding path program 2 times [2025-02-08 08:45:37,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:37,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989435124] [2025-02-08 08:45:37,024 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:45:37,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:37,188 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-02-08 08:45:37,214 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 08:45:37,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:45:37,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 08:45:37,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:37,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989435124] [2025-02-08 08:45:37,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989435124] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:45:37,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372311369] [2025-02-08 08:45:37,292 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:45:37,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:37,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:37,294 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) [2025-02-08 08:45:37,298 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 [2025-02-08 08:45:37,596 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-02-08 08:45:37,652 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 08:45:37,653 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:45:37,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:37,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:45:37,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 08:45:37,756 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:45:37,846 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 08:45:37,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372311369] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:45:37,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:45:37,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-08 08:45:37,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389525750] [2025-02-08 08:45:37,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:45:37,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:45:37,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:37,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:45:37,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:45:37,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-08 08:45:37,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 154 flow. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2025-02-08 08:45:37,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:37,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-08 08:45:37,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:38,500 INFO L124 PetriNetUnfolderBase]: 1868/3645 cut-off events. [2025-02-08 08:45:38,500 INFO L125 PetriNetUnfolderBase]: For 3048/3048 co-relation queries the response was YES. [2025-02-08 08:45:38,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9119 conditions, 3645 events. 1868/3645 cut-off events. For 3048/3048 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 20793 event pairs, 221 based on Foata normal form. 110/3737 useless extension candidates. Maximal degree in co-relation 9106. Up to 704 conditions per place. [2025-02-08 08:45:38,527 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 96 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2025-02-08 08:45:38,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 111 transitions, 698 flow [2025-02-08 08:45:38,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:45:38,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:45:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2025-02-08 08:45:38,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6705426356589147 [2025-02-08 08:45:38,532 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 154 flow. Second operand 6 states and 173 transitions. [2025-02-08 08:45:38,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 111 transitions, 698 flow [2025-02-08 08:45:38,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 111 transitions, 638 flow, removed 20 selfloop flow, removed 2 redundant places. [2025-02-08 08:45:38,541 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 176 flow [2025-02-08 08:45:38,541 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2025-02-08 08:45:38,541 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2025-02-08 08:45:38,541 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 176 flow [2025-02-08 08:45:38,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2025-02-08 08:45:38,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:38,541 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:38,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 08:45:38,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:38,742 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:38,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:38,746 INFO L85 PathProgramCache]: Analyzing trace with hash -421704373, now seen corresponding path program 3 times [2025-02-08 08:45:38,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:38,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444168665] [2025-02-08 08:45:38,747 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:45:38,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:38,904 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 63 statements into 5 equivalence classes. [2025-02-08 08:45:38,946 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 63 of 63 statements. [2025-02-08 08:45:38,947 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-08 08:45:38,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 08:45:39,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:39,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444168665] [2025-02-08 08:45:39,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444168665] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:45:39,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696447657] [2025-02-08 08:45:39,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:45:39,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:39,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:39,375 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) [2025-02-08 08:45:39,380 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 [2025-02-08 08:45:39,691 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 63 statements into 5 equivalence classes. [2025-02-08 08:45:39,809 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 63 of 63 statements. [2025-02-08 08:45:39,809 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-08 08:45:39,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:39,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:45:39,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:39,851 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-08 08:45:39,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:45:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-08 08:45:39,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696447657] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:45:39,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:45:39,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2025-02-08 08:45:39,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131505430] [2025-02-08 08:45:39,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:45:39,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 08:45:39,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:39,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 08:45:39,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-08 08:45:39,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-08 08:45:39,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 176 flow. Second operand has 14 states, 14 states have (on average 16.071428571428573) internal successors, (225), 14 states have internal predecessors, (225), 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) [2025-02-08 08:45:39,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:39,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-08 08:45:39,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:40,835 INFO L124 PetriNetUnfolderBase]: 965/1982 cut-off events. [2025-02-08 08:45:40,835 INFO L125 PetriNetUnfolderBase]: For 2392/2392 co-relation queries the response was YES. [2025-02-08 08:45:40,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5531 conditions, 1982 events. 965/1982 cut-off events. For 2392/2392 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8110 event pairs, 43 based on Foata normal form. 2/1982 useless extension candidates. Maximal degree in co-relation 5515. Up to 371 conditions per place. [2025-02-08 08:45:40,845 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 185 selfloop transitions, 27 changer transitions 28/247 dead transitions. [2025-02-08 08:45:40,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 247 transitions, 1422 flow [2025-02-08 08:45:40,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-08 08:45:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-02-08 08:45:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 539 transitions. [2025-02-08 08:45:40,850 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5222868217054264 [2025-02-08 08:45:40,850 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 176 flow. Second operand 24 states and 539 transitions. [2025-02-08 08:45:40,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 247 transitions, 1422 flow [2025-02-08 08:45:40,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 247 transitions, 1390 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-02-08 08:45:40,856 INFO L231 Difference]: Finished difference. Result has 97 places, 61 transitions, 375 flow [2025-02-08 08:45:40,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=375, PETRI_PLACES=97, PETRI_TRANSITIONS=61} [2025-02-08 08:45:40,857 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 57 predicate places. [2025-02-08 08:45:40,857 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 61 transitions, 375 flow [2025-02-08 08:45:40,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.071428571428573) internal successors, (225), 14 states have internal predecessors, (225), 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) [2025-02-08 08:45:40,858 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:40,858 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:40,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 08:45:41,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:41,059 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:41,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash -67348935, now seen corresponding path program 4 times [2025-02-08 08:45:41,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:41,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075038242] [2025-02-08 08:45:41,060 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:45:41,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:41,241 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-02-08 08:45:41,250 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 73 of 75 statements. [2025-02-08 08:45:41,253 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 08:45:41,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:41,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:41,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075038242] [2025-02-08 08:45:41,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075038242] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:41,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:45:41,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:45:41,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984965197] [2025-02-08 08:45:41,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:41,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:45:41,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:41,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:45:41,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:45:41,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-08 08:45:41,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 61 transitions, 375 flow. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2025-02-08 08:45:41,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:41,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-08 08:45:41,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:41,614 INFO L124 PetriNetUnfolderBase]: 508/1085 cut-off events. [2025-02-08 08:45:41,614 INFO L125 PetriNetUnfolderBase]: For 3053/3053 co-relation queries the response was YES. [2025-02-08 08:45:41,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1085 events. 508/1085 cut-off events. For 3053/3053 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4346 event pairs, 23 based on Foata normal form. 22/1105 useless extension candidates. Maximal degree in co-relation 3440. Up to 235 conditions per place. [2025-02-08 08:45:41,618 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2025-02-08 08:45:41,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 102 transitions, 717 flow [2025-02-08 08:45:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:45:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:45:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2025-02-08 08:45:41,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913621262458472 [2025-02-08 08:45:41,619 INFO L175 Difference]: Start difference. First operand has 97 places, 61 transitions, 375 flow. Second operand 7 states and 178 transitions. [2025-02-08 08:45:41,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 102 transitions, 717 flow [2025-02-08 08:45:41,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 102 transitions, 634 flow, removed 6 selfloop flow, removed 16 redundant places. [2025-02-08 08:45:41,626 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2025-02-08 08:45:41,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2025-02-08 08:45:41,626 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 34 predicate places. [2025-02-08 08:45:41,626 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2025-02-08 08:45:41,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2025-02-08 08:45:41,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-08 08:45:41,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-02-08 08:45:41,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 08:45:41,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-08 08:45:41,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:45:41,629 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 1, 1, 1] [2025-02-08 08:45:41,631 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:45:41,632 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:45:41,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:45:41 BasicIcfg [2025-02-08 08:45:41,635 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:45:41,635 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:45:41,635 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:45:41,635 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:45:41,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:45:31" (3/4) ... [2025-02-08 08:45:41,637 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:45:41,639 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 08:45:41,639 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 08:45:41,644 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 144 nodes and edges [2025-02-08 08:45:41,644 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2025-02-08 08:45:41,645 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2025-02-08 08:45:41,645 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-08 08:45:41,645 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-08 08:45:41,646 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 08:45:41,646 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:45:41,702 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:45:41,702 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:45:41,703 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:45:41,703 INFO L158 Benchmark]: Toolchain (without parser) took 11403.66ms. Allocated memory was 201.3MB in the beginning and 704.6MB in the end (delta: 503.3MB). Free memory was 153.9MB in the beginning and 525.3MB in the end (delta: -371.4MB). Peak memory consumption was 132.0MB. Max. memory is 16.1GB. [2025-02-08 08:45:41,703 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 201.3MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:45:41,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.48ms. Allocated memory is still 201.3MB. Free memory was 153.9MB in the beginning and 126.3MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:45:41,704 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.56ms. Allocated memory is still 201.3MB. Free memory was 126.3MB in the beginning and 123.5MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:45:41,704 INFO L158 Benchmark]: Boogie Preprocessor took 28.10ms. Allocated memory is still 201.3MB. Free memory was 123.5MB in the beginning and 120.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:45:41,704 INFO L158 Benchmark]: IcfgBuilder took 1144.11ms. Allocated memory is still 201.3MB. Free memory was 120.2MB in the beginning and 116.4MB in the end (delta: 3.8MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2025-02-08 08:45:41,704 INFO L158 Benchmark]: TraceAbstraction took 9682.45ms. Allocated memory was 201.3MB in the beginning and 704.6MB in the end (delta: 503.3MB). Free memory was 115.1MB in the beginning and 533.7MB in the end (delta: -418.6MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2025-02-08 08:45:41,704 INFO L158 Benchmark]: Witness Printer took 67.56ms. Allocated memory is still 704.6MB. Free memory was 533.7MB in the beginning and 525.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:45:41,705 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 201.3MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.48ms. Allocated memory is still 201.3MB. Free memory was 153.9MB in the beginning and 126.3MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.56ms. Allocated memory is still 201.3MB. Free memory was 126.3MB in the beginning and 123.5MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.10ms. Allocated memory is still 201.3MB. Free memory was 123.5MB in the beginning and 120.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1144.11ms. Allocated memory is still 201.3MB. Free memory was 120.2MB in the beginning and 116.4MB in the end (delta: 3.8MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9682.45ms. Allocated memory was 201.3MB in the beginning and 704.6MB in the end (delta: 503.3MB). Free memory was 115.1MB in the beginning and 533.7MB in the end (delta: -418.6MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Witness Printer took 67.56ms. Allocated memory is still 704.6MB. Free memory was 533.7MB in the beginning and 525.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 906]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: 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, 59 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: 9.6s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 793 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 776 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2079 IncrementalHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 2 mSDtfsCounter, 2079 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 311 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=375occurred in iteration=10, InterpolantAutomatonStates: 66, 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, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 576 NumberOfCodeBlocks, 561 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 712 ConstructedInterpolants, 0 QuantifiedInterpolants, 1898 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1471 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 330/429 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! [2025-02-08 08:45:41,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE