./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc 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/weaver/bench-exp3x3-opt.wvr.c -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 df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:00:16,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:00:16,997 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 13:00:17,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:00:17,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:00:17,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:00:17,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:00:17,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:00:17,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:00:17,035 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:00:17,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:00:17,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:00:17,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:00:17,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:00:17,036 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:00:17,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:00:17,037 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 13:00:17,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:00:17,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 13:00:17,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:00:17,038 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 13:00:17,038 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 13:00:17,038 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 13:00:17,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:00:17,038 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 13:00:17,038 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:00:17,038 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 13:00:17,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:00:17,039 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:00:17,039 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:00:17,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:00:17,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:00:17,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:00:17,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:00:17,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:00:17,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:00:17,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:00:17,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:00:17,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:00:17,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:00:17,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:00:17,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:00:17,041 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 -> df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 [2025-02-06 13:00:17,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:00:17,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:00:17,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:00:17,320 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:00:17,320 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:00:17,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2025-02-06 13:00:18,621 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/81d3b6c5e/4ea89923ec7743c0a2d59d7aae03b51e/FLAGca0b1d180 [2025-02-06 13:00:18,941 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:00:18,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2025-02-06 13:00:18,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/81d3b6c5e/4ea89923ec7743c0a2d59d7aae03b51e/FLAGca0b1d180 [2025-02-06 13:00:18,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/81d3b6c5e/4ea89923ec7743c0a2d59d7aae03b51e [2025-02-06 13:00:18,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:00:18,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:00:18,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:00:18,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:00:18,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:00:18,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:00:18" (1/1) ... [2025-02-06 13:00:18,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b97dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:18, skipping insertion in model container [2025-02-06 13:00:18,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:00:18" (1/1) ... [2025-02-06 13:00:19,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:00:19,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:00:19,195 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:00:19,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:00:19,245 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:00:19,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19 WrapperNode [2025-02-06 13:00:19,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:00:19,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:00:19,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:00:19,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:00:19,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,291 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2025-02-06 13:00:19,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:00:19,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:00:19,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:00:19,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:00:19,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,304 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,325 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 13:00:19,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,333 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:00:19,346 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:00:19,347 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:00:19,347 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:00:19,348 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (1/1) ... [2025-02-06 13:00:19,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:00:19,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:00:19,376 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) [2025-02-06 13:00:19,379 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 [2025-02-06 13:00:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:00:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 13:00:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 13:00:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 13:00:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 13:00:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 13:00:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 13:00:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-06 13:00:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-06 13:00:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:00:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-06 13:00:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-06 13:00:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-06 13:00:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-06 13:00:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:00:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:00:19,402 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 13:00:19,500 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:00:19,501 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:00:19,757 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 13:00:19,757 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:00:19,910 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:00:19,911 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:00:19,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:00:19 BoogieIcfgContainer [2025-02-06 13:00:19,912 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:00:19,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:00:19,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:00:19,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:00:19,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:00:18" (1/3) ... [2025-02-06 13:00:19,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27e131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:00:19, skipping insertion in model container [2025-02-06 13:00:19,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:00:19" (2/3) ... [2025-02-06 13:00:19,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27e131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:00:19, skipping insertion in model container [2025-02-06 13:00:19,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:00:19" (3/3) ... [2025-02-06 13:00:19,924 INFO L128 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2025-02-06 13:00:19,937 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:00:19,939 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bench-exp3x3-opt.wvr.c that has 7 procedures, 43 locations, 1 initial locations, 6 loop locations, and 2 error locations. [2025-02-06 13:00:19,939 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 13:00:20,001 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-06 13:00:20,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 138 flow [2025-02-06 13:00:20,074 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2025-02-06 13:00:20,077 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 13:00:20,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 42 events. 6/42 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2025-02-06 13:00:20,082 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 138 flow [2025-02-06 13:00:20,086 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 118 flow [2025-02-06 13:00:20,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:00:20,112 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;@41bd2fbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:00:20,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 13:00:20,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 13:00:20,131 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2025-02-06 13:00:20,131 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 13:00:20,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:20,132 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, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:20,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:20,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:20,138 INFO L85 PathProgramCache]: Analyzing trace with hash -112677829, now seen corresponding path program 1 times [2025-02-06 13:00:20,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:20,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243252931] [2025-02-06 13:00:20,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:20,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:20,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 13:00:20,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 13:00:20,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:20,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:00:20,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:20,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243252931] [2025-02-06 13:00:20,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243252931] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:00:20,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:00:20,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:00:20,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572667752] [2025-02-06 13:00:20,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:00:20,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:00:20,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:20,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:00:20,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:00:20,698 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:20,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:00:20,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:20,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:20,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:22,738 INFO L124 PetriNetUnfolderBase]: 21719/25257 cut-off events. [2025-02-06 13:00:22,739 INFO L125 PetriNetUnfolderBase]: For 1331/1331 co-relation queries the response was YES. [2025-02-06 13:00:22,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51643 conditions, 25257 events. 21719/25257 cut-off events. For 1331/1331 co-relation queries the response was YES. Maximal size of possible extension queue 886. Compared 88484 event pairs, 3973 based on Foata normal form. 2/13724 useless extension candidates. Maximal degree in co-relation 44649. Up to 16365 conditions per place. [2025-02-06 13:00:22,942 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 49 selfloop transitions, 3 changer transitions 1/60 dead transitions. [2025-02-06 13:00:22,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 283 flow [2025-02-06 13:00:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:00:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:00:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2025-02-06 13:00:22,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2025-02-06 13:00:22,959 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 118 flow. Second operand 3 states and 97 transitions. [2025-02-06 13:00:22,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 283 flow [2025-02-06 13:00:23,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 60 transitions, 245 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-02-06 13:00:23,012 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 109 flow [2025-02-06 13:00:23,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2025-02-06 13:00:23,019 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2025-02-06 13:00:23,020 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 109 flow [2025-02-06 13:00:23,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:00:23,020 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:23,021 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:23,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:00:23,022 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:23,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:23,024 INFO L85 PathProgramCache]: Analyzing trace with hash -676991891, now seen corresponding path program 1 times [2025-02-06 13:00:23,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:23,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054448316] [2025-02-06 13:00:23,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:23,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:23,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 13:00:23,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 13:00:23,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:23,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:00:23,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:23,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054448316] [2025-02-06 13:00:23,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054448316] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:00:23,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:00:23,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:00:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535931203] [2025-02-06 13:00:23,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:00:23,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:00:23,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:23,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:00:23,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:00:23,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:23,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2025-02-06 13:00:23,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:23,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:23,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:25,028 INFO L124 PetriNetUnfolderBase]: 27281/31861 cut-off events. [2025-02-06 13:00:25,028 INFO L125 PetriNetUnfolderBase]: For 4124/4124 co-relation queries the response was YES. [2025-02-06 13:00:25,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69532 conditions, 31861 events. 27281/31861 cut-off events. For 4124/4124 co-relation queries the response was YES. Maximal size of possible extension queue 1137. Compared 118338 event pairs, 4194 based on Foata normal form. 1/21679 useless extension candidates. Maximal degree in co-relation 22987. Up to 23229 conditions per place. [2025-02-06 13:00:25,273 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 55 selfloop transitions, 3 changer transitions 3/68 dead transitions. [2025-02-06 13:00:25,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 304 flow [2025-02-06 13:00:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:00:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:00:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2025-02-06 13:00:25,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2025-02-06 13:00:25,276 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 109 flow. Second operand 3 states and 100 transitions. [2025-02-06 13:00:25,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 304 flow [2025-02-06 13:00:25,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 68 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:25,281 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 125 flow [2025-02-06 13:00:25,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2025-02-06 13:00:25,283 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2025-02-06 13:00:25,283 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 125 flow [2025-02-06 13:00:25,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2025-02-06 13:00:25,283 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:25,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:25,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 13:00:25,283 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:25,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2050225769, now seen corresponding path program 1 times [2025-02-06 13:00:25,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:25,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977818941] [2025-02-06 13:00:25,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:25,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:25,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 13:00:25,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 13:00:25,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:25,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:25,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:25,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:25,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977818941] [2025-02-06 13:00:25,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977818941] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:00:25,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:00:25,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:00:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326797133] [2025-02-06 13:00:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:00:25,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:00:25,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:25,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:00:25,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:00:25,529 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:25,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2025-02-06 13:00:25,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:25,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:25,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:27,137 INFO L124 PetriNetUnfolderBase]: 36105/42483 cut-off events. [2025-02-06 13:00:27,137 INFO L125 PetriNetUnfolderBase]: For 12422/12422 co-relation queries the response was YES. [2025-02-06 13:00:27,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100224 conditions, 42483 events. 36105/42483 cut-off events. For 12422/12422 co-relation queries the response was YES. Maximal size of possible extension queue 1537. Compared 170043 event pairs, 5986 based on Foata normal form. 1/36259 useless extension candidates. Maximal degree in co-relation 33618. Up to 30318 conditions per place. [2025-02-06 13:00:27,351 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 61 selfloop transitions, 3 changer transitions 5/76 dead transitions. [2025-02-06 13:00:27,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 76 transitions, 358 flow [2025-02-06 13:00:27,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:00:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:00:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-02-06 13:00:27,353 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2025-02-06 13:00:27,353 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 125 flow. Second operand 3 states and 104 transitions. [2025-02-06 13:00:27,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 76 transitions, 358 flow [2025-02-06 13:00:27,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:27,357 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 141 flow [2025-02-06 13:00:27,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2025-02-06 13:00:27,358 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2025-02-06 13:00:27,358 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 141 flow [2025-02-06 13:00:27,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2025-02-06 13:00:27,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:27,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:27,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 13:00:27,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:27,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:27,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1210128203, now seen corresponding path program 1 times [2025-02-06 13:00:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:27,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037346674] [2025-02-06 13:00:27,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:27,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:27,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 13:00:27,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:27,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:27,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:27,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:27,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037346674] [2025-02-06 13:00:27,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037346674] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:00:27,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:00:27,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:00:27,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567005349] [2025-02-06 13:00:27,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:00:27,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:00:27,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:27,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:00:27,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:00:27,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:27,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2025-02-06 13:00:27,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:27,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:27,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:29,375 INFO L124 PetriNetUnfolderBase]: 36049/42318 cut-off events. [2025-02-06 13:00:29,375 INFO L125 PetriNetUnfolderBase]: For 16704/16704 co-relation queries the response was YES. [2025-02-06 13:00:29,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105179 conditions, 42318 events. 36049/42318 cut-off events. For 16704/16704 co-relation queries the response was YES. Maximal size of possible extension queue 1521. Compared 165966 event pairs, 984 based on Foata normal form. 562/42868 useless extension candidates. Maximal degree in co-relation 35250. Up to 17323 conditions per place. [2025-02-06 13:00:29,524 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 102 selfloop transitions, 6 changer transitions 11/126 dead transitions. [2025-02-06 13:00:29,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 126 transitions, 615 flow [2025-02-06 13:00:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:00:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 13:00:29,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2025-02-06 13:00:29,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2025-02-06 13:00:29,526 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 141 flow. Second operand 5 states and 174 transitions. [2025-02-06 13:00:29,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 126 transitions, 615 flow [2025-02-06 13:00:29,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 126 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:29,530 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 162 flow [2025-02-06 13:00:29,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2025-02-06 13:00:29,531 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2025-02-06 13:00:29,531 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 162 flow [2025-02-06 13:00:29,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2025-02-06 13:00:29,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:29,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:29,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 13:00:29,532 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:29,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1868920200, now seen corresponding path program 1 times [2025-02-06 13:00:29,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:29,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270878035] [2025-02-06 13:00:29,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:29,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:29,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 13:00:29,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:29,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:29,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:29,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:29,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270878035] [2025-02-06 13:00:29,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270878035] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:00:29,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334140648] [2025-02-06 13:00:29,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:29,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:29,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:00:29,633 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) [2025-02-06 13:00:29,635 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 [2025-02-06 13:00:29,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 13:00:29,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:29,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:29,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:29,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 13:00:29,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:00:29,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:29,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:00:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:29,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334140648] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:00:29,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:00:29,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-06 13:00:29,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936674473] [2025-02-06 13:00:29,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:00:29,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:00:29,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:29,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:00:29,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:00:29,921 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:29,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2025-02-06 13:00:29,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:29,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:29,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:31,876 INFO L124 PetriNetUnfolderBase]: 35781/42567 cut-off events. [2025-02-06 13:00:31,876 INFO L125 PetriNetUnfolderBase]: For 25316/25316 co-relation queries the response was YES. [2025-02-06 13:00:31,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114178 conditions, 42567 events. 35781/42567 cut-off events. For 25316/25316 co-relation queries the response was YES. Maximal size of possible extension queue 1552. Compared 177800 event pairs, 4692 based on Foata normal form. 917/43437 useless extension candidates. Maximal degree in co-relation 39089. Up to 20852 conditions per place. [2025-02-06 13:00:32,064 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 108 selfloop transitions, 6 changer transitions 7/128 dead transitions. [2025-02-06 13:00:32,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 128 transitions, 693 flow [2025-02-06 13:00:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:00:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 13:00:32,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2025-02-06 13:00:32,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2025-02-06 13:00:32,067 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 162 flow. Second operand 5 states and 170 transitions. [2025-02-06 13:00:32,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 128 transitions, 693 flow [2025-02-06 13:00:32,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 128 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:32,073 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 195 flow [2025-02-06 13:00:32,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2025-02-06 13:00:32,074 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2025-02-06 13:00:32,074 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 195 flow [2025-02-06 13:00:32,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2025-02-06 13:00:32,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:32,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:32,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 13:00:32,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:32,275 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:32,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1365943141, now seen corresponding path program 1 times [2025-02-06 13:00:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:32,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722659198] [2025-02-06 13:00:32,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:32,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 13:00:32,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:32,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:32,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:32,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:32,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722659198] [2025-02-06 13:00:32,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722659198] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:00:32,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785516566] [2025-02-06 13:00:32,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:32,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:32,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:00:32,399 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) [2025-02-06 13:00:32,402 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 [2025-02-06 13:00:32,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 13:00:32,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:32,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:32,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:32,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 13:00:32,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:00:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:32,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:00:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:32,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785516566] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:00:32,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:00:32,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-06 13:00:32,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699607403] [2025-02-06 13:00:32,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:00:32,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:00:32,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:32,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:00:32,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:00:32,629 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:32,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2025-02-06 13:00:32,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:32,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:32,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:35,074 INFO L124 PetriNetUnfolderBase]: 40859/49047 cut-off events. [2025-02-06 13:00:35,074 INFO L125 PetriNetUnfolderBase]: For 50384/50402 co-relation queries the response was YES. [2025-02-06 13:00:35,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146843 conditions, 49047 events. 40859/49047 cut-off events. For 50384/50402 co-relation queries the response was YES. Maximal size of possible extension queue 1842. Compared 218534 event pairs, 5075 based on Foata normal form. 1144/49699 useless extension candidates. Maximal degree in co-relation 64565. Up to 24931 conditions per place. [2025-02-06 13:00:35,293 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 116 selfloop transitions, 6 changer transitions 14/143 dead transitions. [2025-02-06 13:00:35,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 143 transitions, 818 flow [2025-02-06 13:00:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:00:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 13:00:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 180 transitions. [2025-02-06 13:00:35,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-02-06 13:00:35,295 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 195 flow. Second operand 5 states and 180 transitions. [2025-02-06 13:00:35,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 143 transitions, 818 flow [2025-02-06 13:00:35,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 143 transitions, 801 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:35,329 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 219 flow [2025-02-06 13:00:35,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2025-02-06 13:00:35,329 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 7 predicate places. [2025-02-06 13:00:35,330 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 219 flow [2025-02-06 13:00:35,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2025-02-06 13:00:35,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:35,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:35,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 13:00:35,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:35,531 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:35,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:35,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1973087544, now seen corresponding path program 1 times [2025-02-06 13:00:35,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:35,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572742464] [2025-02-06 13:00:35,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:35,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:35,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 13:00:35,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:35,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:35,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:35,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572742464] [2025-02-06 13:00:35,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572742464] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:00:35,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:00:35,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:00:35,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870615342] [2025-02-06 13:00:35,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:00:35,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:00:35,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:35,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:00:35,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:00:35,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:35,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2025-02-06 13:00:35,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:35,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:35,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:37,393 INFO L124 PetriNetUnfolderBase]: 28133/33361 cut-off events. [2025-02-06 13:00:37,393 INFO L125 PetriNetUnfolderBase]: For 46077/46077 co-relation queries the response was YES. [2025-02-06 13:00:37,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110724 conditions, 33361 events. 28133/33361 cut-off events. For 46077/46077 co-relation queries the response was YES. Maximal size of possible extension queue 1208. Compared 131815 event pairs, 674 based on Foata normal form. 366/33704 useless extension candidates. Maximal degree in co-relation 56630. Up to 13091 conditions per place. [2025-02-06 13:00:37,538 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 89 selfloop transitions, 4 changer transitions 34/134 dead transitions. [2025-02-06 13:00:37,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 134 transitions, 841 flow [2025-02-06 13:00:37,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:00:37,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 13:00:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2025-02-06 13:00:37,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2025-02-06 13:00:37,540 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 219 flow. Second operand 5 states and 166 transitions. [2025-02-06 13:00:37,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 134 transitions, 841 flow [2025-02-06 13:00:37,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 134 transitions, 812 flow, removed 10 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:37,672 INFO L231 Difference]: Finished difference. Result has 64 places, 51 transitions, 221 flow [2025-02-06 13:00:37,673 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=64, PETRI_TRANSITIONS=51} [2025-02-06 13:00:37,673 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2025-02-06 13:00:37,673 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 221 flow [2025-02-06 13:00:37,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2025-02-06 13:00:37,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:37,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:37,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 13:00:37,674 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:37,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:37,674 INFO L85 PathProgramCache]: Analyzing trace with hash -353093436, now seen corresponding path program 2 times [2025-02-06 13:00:37,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:37,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044936715] [2025-02-06 13:00:37,675 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:00:37,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:37,683 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-02-06 13:00:37,696 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:37,700 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:00:37,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:37,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:37,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044936715] [2025-02-06 13:00:37,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044936715] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:00:37,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870235587] [2025-02-06 13:00:37,803 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:00:37,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:37,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:00:37,807 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) [2025-02-06 13:00:37,808 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 [2025-02-06 13:00:37,865 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-02-06 13:00:37,892 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 13:00:37,893 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:00:37,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:37,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 13:00:37,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:00:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:37,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:00:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:00:38,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870235587] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:00:38,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:00:38,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-02-06 13:00:38,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126560543] [2025-02-06 13:00:38,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:00:38,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 13:00:38,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:38,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 13:00:38,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:00:38,085 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:38,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 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) [2025-02-06 13:00:38,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:38,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:38,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:39,827 INFO L124 PetriNetUnfolderBase]: 19916/23672 cut-off events. [2025-02-06 13:00:39,827 INFO L125 PetriNetUnfolderBase]: For 41079/41085 co-relation queries the response was YES. [2025-02-06 13:00:39,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83023 conditions, 23672 events. 19916/23672 cut-off events. For 41079/41085 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 88953 event pairs, 257 based on Foata normal form. 1107/24776 useless extension candidates. Maximal degree in co-relation 46094. Up to 6957 conditions per place. [2025-02-06 13:00:40,165 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 290 selfloop transitions, 41 changer transitions 6/344 dead transitions. [2025-02-06 13:00:40,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 344 transitions, 2354 flow [2025-02-06 13:00:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 13:00:40,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 13:00:40,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 500 transitions. [2025-02-06 13:00:40,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6127450980392157 [2025-02-06 13:00:40,168 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 221 flow. Second operand 17 states and 500 transitions. [2025-02-06 13:00:40,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 344 transitions, 2354 flow [2025-02-06 13:00:40,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 344 transitions, 2317 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:40,206 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 619 flow [2025-02-06 13:00:40,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=619, PETRI_PLACES=90, PETRI_TRANSITIONS=93} [2025-02-06 13:00:40,207 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 36 predicate places. [2025-02-06 13:00:40,207 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 619 flow [2025-02-06 13:00:40,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 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) [2025-02-06 13:00:40,207 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:40,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:40,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 13:00:40,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:40,408 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:40,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2102127813, now seen corresponding path program 1 times [2025-02-06 13:00:40,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:40,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533084619] [2025-02-06 13:00:40,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:40,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:40,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 13:00:40,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 13:00:40,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:40,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 13:00:40,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:40,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533084619] [2025-02-06 13:00:40,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533084619] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:00:40,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:00:40,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:00:40,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466950015] [2025-02-06 13:00:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:00:40,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:00:40,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:40,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:00:40,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:00:40,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:40,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 619 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2025-02-06 13:00:40,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:40,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:40,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:41,971 INFO L124 PetriNetUnfolderBase]: 19713/23589 cut-off events. [2025-02-06 13:00:41,972 INFO L125 PetriNetUnfolderBase]: For 126824/126870 co-relation queries the response was YES. [2025-02-06 13:00:42,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112573 conditions, 23589 events. 19713/23589 cut-off events. For 126824/126870 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 89338 event pairs, 998 based on Foata normal form. 210/23779 useless extension candidates. Maximal degree in co-relation 100071. Up to 9384 conditions per place. [2025-02-06 13:00:42,095 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 127 selfloop transitions, 10 changer transitions 54/198 dead transitions. [2025-02-06 13:00:42,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 198 transitions, 1761 flow [2025-02-06 13:00:42,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:00:42,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 13:00:42,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2025-02-06 13:00:42,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2025-02-06 13:00:42,097 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 619 flow. Second operand 5 states and 158 transitions. [2025-02-06 13:00:42,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 198 transitions, 1761 flow [2025-02-06 13:00:42,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 198 transitions, 1675 flow, removed 28 selfloop flow, removed 2 redundant places. [2025-02-06 13:00:42,398 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 600 flow [2025-02-06 13:00:42,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=600, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2025-02-06 13:00:42,399 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 39 predicate places. [2025-02-06 13:00:42,399 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 600 flow [2025-02-06 13:00:42,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2025-02-06 13:00:42,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:42,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:42,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 13:00:42,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:42,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:42,400 INFO L85 PathProgramCache]: Analyzing trace with hash 834353081, now seen corresponding path program 2 times [2025-02-06 13:00:42,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:42,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97231352] [2025-02-06 13:00:42,401 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:00:42,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:42,407 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-06 13:00:42,417 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 13:00:42,418 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:00:42,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 13:00:42,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:42,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97231352] [2025-02-06 13:00:42,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97231352] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:00:42,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979226782] [2025-02-06 13:00:42,496 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:00:42,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:42,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:00:42,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:00:42,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 13:00:42,551 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-06 13:00:42,578 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 13:00:42,579 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:00:42,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:42,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 13:00:42,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:00:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 13:00:42,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:00:42,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 13:00:42,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979226782] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:00:42,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:00:42,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-06 13:00:42,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351755874] [2025-02-06 13:00:42,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:00:42,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:00:42,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:42,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:00:42,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:00:42,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:42,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 600 flow. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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) [2025-02-06 13:00:42,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:42,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:42,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:43,916 INFO L124 PetriNetUnfolderBase]: 13483/16182 cut-off events. [2025-02-06 13:00:43,916 INFO L125 PetriNetUnfolderBase]: For 84876/84922 co-relation queries the response was YES. [2025-02-06 13:00:43,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76629 conditions, 16182 events. 13483/16182 cut-off events. For 84876/84922 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 58375 event pairs, 999 based on Foata normal form. 411/16573 useless extension candidates. Maximal degree in co-relation 67149. Up to 10707 conditions per place. [2025-02-06 13:00:44,070 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 155 selfloop transitions, 12 changer transitions 0/174 dead transitions. [2025-02-06 13:00:44,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 174 transitions, 1478 flow [2025-02-06 13:00:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:00:44,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 13:00:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2025-02-06 13:00:44,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2025-02-06 13:00:44,072 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 600 flow. Second operand 5 states and 151 transitions. [2025-02-06 13:00:44,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 174 transitions, 1478 flow [2025-02-06 13:00:44,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 174 transitions, 1465 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:44,262 INFO L231 Difference]: Finished difference. Result has 97 places, 96 transitions, 655 flow [2025-02-06 13:00:44,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=655, PETRI_PLACES=97, PETRI_TRANSITIONS=96} [2025-02-06 13:00:44,262 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 43 predicate places. [2025-02-06 13:00:44,262 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 96 transitions, 655 flow [2025-02-06 13:00:44,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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) [2025-02-06 13:00:44,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:44,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:44,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 13:00:44,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 13:00:44,463 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:44,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 193127029, now seen corresponding path program 1 times [2025-02-06 13:00:44,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:44,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579572771] [2025-02-06 13:00:44,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:44,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:44,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 13:00:44,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 13:00:44,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:44,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:00:44,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:44,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579572771] [2025-02-06 13:00:44,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579572771] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:00:44,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687858158] [2025-02-06 13:00:44,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:44,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:44,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:00:44,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:00:44,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 13:00:44,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 13:00:44,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 13:00:44,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:44,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:44,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 13:00:44,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:00:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:00:44,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:00:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:00:44,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687858158] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:00:44,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:00:44,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-06 13:00:44,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80501738] [2025-02-06 13:00:44,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:00:44,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:00:44,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:00:44,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:00:44,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:00:44,859 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 13:00:44,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 655 flow. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2025-02-06 13:00:44,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:00:44,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 13:00:44,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:00:45,729 INFO L124 PetriNetUnfolderBase]: 12943/15536 cut-off events. [2025-02-06 13:00:45,729 INFO L125 PetriNetUnfolderBase]: For 112436/112440 co-relation queries the response was YES. [2025-02-06 13:00:45,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78123 conditions, 15536 events. 12943/15536 cut-off events. For 112436/112440 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 57483 event pairs, 352 based on Foata normal form. 541/16066 useless extension candidates. Maximal degree in co-relation 68466. Up to 11160 conditions per place. [2025-02-06 13:00:45,869 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 290 selfloop transitions, 6 changer transitions 0/303 dead transitions. [2025-02-06 13:00:45,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 303 transitions, 2876 flow [2025-02-06 13:00:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:00:45,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 13:00:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2025-02-06 13:00:45,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6541666666666667 [2025-02-06 13:00:45,871 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 655 flow. Second operand 5 states and 157 transitions. [2025-02-06 13:00:45,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 303 transitions, 2876 flow [2025-02-06 13:00:45,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 303 transitions, 2803 flow, removed 20 selfloop flow, removed 1 redundant places. [2025-02-06 13:00:45,995 INFO L231 Difference]: Finished difference. Result has 102 places, 99 transitions, 677 flow [2025-02-06 13:00:45,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=677, PETRI_PLACES=102, PETRI_TRANSITIONS=99} [2025-02-06 13:00:45,995 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 48 predicate places. [2025-02-06 13:00:45,995 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 99 transitions, 677 flow [2025-02-06 13:00:45,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2025-02-06 13:00:45,996 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:00:45,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:00:46,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 13:00:46,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-06 13:00:46,199 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:00:46,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:00:46,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2088019767, now seen corresponding path program 1 times [2025-02-06 13:00:46,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:00:46,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707353140] [2025-02-06 13:00:46,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:46,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:00:46,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 13:00:46,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 13:00:46,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:46,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 13:00:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:00:46,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707353140] [2025-02-06 13:00:46,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707353140] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:00:46,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966472860] [2025-02-06 13:00:46,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:00:46,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:00:46,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:00:46,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:00:46,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 13:00:46,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 13:00:47,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 13:00:47,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:00:47,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:00:47,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 13:00:47,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:01:20,368 WARN L286 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)