./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.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 4b21640b39ce7bcc8ee8415d7ec787ca73953d49130bebf43478653d490e2460 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:05:37,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:05:37,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 01:05:37,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:05:37,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:05:37,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:05:37,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:05:37,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:05:37,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:05:37,636 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:05:37,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:05:37,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:05:37,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:05:37,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:05:37,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 01:05:37,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:05:37,639 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:05:37,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:05:37,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:05:37,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:05:37,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:05:37,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:05:37,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:05:37,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:05:37,641 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 -> 4b21640b39ce7bcc8ee8415d7ec787ca73953d49130bebf43478653d490e2460 [2025-01-10 01:05:37,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:05:37,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:05:37,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:05:37,874 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:05:37,874 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:05:37,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2025-01-10 01:05:39,106 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/71335d47f/fc5bc27a5e434ea6ac41a5acd5d0fab3/FLAG54358bfb1 [2025-01-10 01:05:39,340 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:05:39,341 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2025-01-10 01:05:39,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/71335d47f/fc5bc27a5e434ea6ac41a5acd5d0fab3/FLAG54358bfb1 [2025-01-10 01:05:39,672 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/71335d47f/fc5bc27a5e434ea6ac41a5acd5d0fab3 [2025-01-10 01:05:39,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:05:39,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:05:39,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:05:39,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:05:39,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:05:39,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c6e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39, skipping insertion in model container [2025-01-10 01:05:39,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:05:39,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:05:39,901 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:05:39,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:05:39,932 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:05:39,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39 WrapperNode [2025-01-10 01:05:39,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:05:39,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:05:39,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:05:39,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:05:39,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,958 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2025-01-10 01:05:39,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:05:39,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:05:39,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:05:39,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:05:39,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,975 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 01:05:39,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,981 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:05:39,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:05:39,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:05:39,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:05:39,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (1/1) ... [2025-01-10 01:05:39,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:05:40,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:05:40,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 01:05:40,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 01:05:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 01:05:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 01:05:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 01:05:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 01:05:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 01:05:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 01:05:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:05:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:05:40,049 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 01:05:40,113 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:05:40,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:05:40,292 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 01:05:40,292 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:05:40,398 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:05:40,399 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 01:05:40,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:05:40 BoogieIcfgContainer [2025-01-10 01:05:40,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:05:40,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:05:40,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:05:40,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:05:40,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:05:39" (1/3) ... [2025-01-10 01:05:40,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76aa7ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:05:40, skipping insertion in model container [2025-01-10 01:05:40,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:39" (2/3) ... [2025-01-10 01:05:40,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76aa7ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:05:40, skipping insertion in model container [2025-01-10 01:05:40,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:05:40" (3/3) ... [2025-01-10 01:05:40,408 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2025-01-10 01:05:40,419 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:05:40,420 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-2-unrolled.wvr.c that has 3 procedures, 29 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-01-10 01:05:40,421 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 01:05:40,466 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 01:05:40,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 74 flow [2025-01-10 01:05:40,517 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2025-01-10 01:05:40,518 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-10 01:05:40,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 2/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2025-01-10 01:05:40,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 30 transitions, 74 flow [2025-01-10 01:05:40,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 27 transitions, 66 flow [2025-01-10 01:05:40,527 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:05:40,534 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;@146b3587, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:05:40,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-10 01:05:40,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 01:05:40,541 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2025-01-10 01:05:40,542 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-10 01:05:40,542 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:05:40,542 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:05:40,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:05:40,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:05:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash -627135666, now seen corresponding path program 1 times [2025-01-10 01:05:40,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:05:40,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585326416] [2025-01-10 01:05:40,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:05:40,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:05:40,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 01:05:40,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 01:05:40,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:05:40,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:05:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:05:40,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:05:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585326416] [2025-01-10 01:05:40,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585326416] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:05:40,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:05:40,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:05:40,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413982091] [2025-01-10 01:05:40,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:05:40,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:05:40,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:05:40,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:05:40,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:05:40,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2025-01-10 01:05:40,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:40,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:05:40,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2025-01-10 01:05:40,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:05:40,874 INFO L124 PetriNetUnfolderBase]: 161/295 cut-off events. [2025-01-10 01:05:40,874 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-01-10 01:05:40,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 295 events. 161/295 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1100 event pairs, 32 based on Foata normal form. 2/291 useless extension candidates. Maximal degree in co-relation 526. Up to 243 conditions per place. [2025-01-10 01:05:40,891 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 23 selfloop transitions, 5 changer transitions 1/34 dead transitions. [2025-01-10 01:05:40,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 147 flow [2025-01-10 01:05:40,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:05:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 01:05:40,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2025-01-10 01:05:40,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2025-01-10 01:05:40,906 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 66 flow. Second operand 3 states and 55 transitions. [2025-01-10 01:05:40,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 147 flow [2025-01-10 01:05:40,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 34 transitions, 133 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 01:05:40,911 INFO L231 Difference]: Finished difference. Result has 29 places, 27 transitions, 79 flow [2025-01-10 01:05:40,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=27} [2025-01-10 01:05:40,915 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2025-01-10 01:05:40,915 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 27 transitions, 79 flow [2025-01-10 01:05:40,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:40,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:05:40,915 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:05:40,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 01:05:40,915 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:05:40,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:05:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash -84592894, now seen corresponding path program 1 times [2025-01-10 01:05:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:05:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278260958] [2025-01-10 01:05:40,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:05:40,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:05:40,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 01:05:40,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 01:05:40,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:05:40,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:05:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:05:41,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:05:41,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278260958] [2025-01-10 01:05:41,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278260958] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:05:41,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:05:41,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:05:41,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651725152] [2025-01-10 01:05:41,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:05:41,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:05:41,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:05:41,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:05:41,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:05:41,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2025-01-10 01:05:41,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:05:41,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2025-01-10 01:05:41,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:05:41,193 INFO L124 PetriNetUnfolderBase]: 199/363 cut-off events. [2025-01-10 01:05:41,193 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-01-10 01:05:41,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 363 events. 199/363 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1470 event pairs, 32 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 200. Up to 202 conditions per place. [2025-01-10 01:05:41,197 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 35 selfloop transitions, 10 changer transitions 3/55 dead transitions. [2025-01-10 01:05:41,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 55 transitions, 241 flow [2025-01-10 01:05:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:05:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:05:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2025-01-10 01:05:41,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62 [2025-01-10 01:05:41,200 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 79 flow. Second operand 5 states and 93 transitions. [2025-01-10 01:05:41,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 55 transitions, 241 flow [2025-01-10 01:05:41,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 55 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:05:41,202 INFO L231 Difference]: Finished difference. Result has 35 places, 34 transitions, 135 flow [2025-01-10 01:05:41,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=35, PETRI_TRANSITIONS=34} [2025-01-10 01:05:41,203 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2025-01-10 01:05:41,203 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 34 transitions, 135 flow [2025-01-10 01:05:41,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:05:41,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:05:41,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 01:05:41,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:05:41,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:05:41,207 INFO L85 PathProgramCache]: Analyzing trace with hash -512190602, now seen corresponding path program 2 times [2025-01-10 01:05:41,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:05:41,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903943641] [2025-01-10 01:05:41,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:05:41,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:05:41,220 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-01-10 01:05:41,231 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 01:05:41,233 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 01:05:41,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:05:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:05:41,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:05:41,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903943641] [2025-01-10 01:05:41,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903943641] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:05:41,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:05:41,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:05:41,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446614401] [2025-01-10 01:05:41,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:05:41,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:05:41,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:05:41,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:05:41,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:05:41,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2025-01-10 01:05:41,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:05:41,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2025-01-10 01:05:41,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:05:41,408 INFO L124 PetriNetUnfolderBase]: 173/336 cut-off events. [2025-01-10 01:05:41,409 INFO L125 PetriNetUnfolderBase]: For 223/227 co-relation queries the response was YES. [2025-01-10 01:05:41,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 336 events. 173/336 cut-off events. For 223/227 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1349 event pairs, 11 based on Foata normal form. 21/351 useless extension candidates. Maximal degree in co-relation 278. Up to 132 conditions per place. [2025-01-10 01:05:41,411 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 39 selfloop transitions, 12 changer transitions 3/61 dead transitions. [2025-01-10 01:05:41,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 61 transitions, 339 flow [2025-01-10 01:05:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:05:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:05:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2025-01-10 01:05:41,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2025-01-10 01:05:41,412 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 135 flow. Second operand 5 states and 94 transitions. [2025-01-10 01:05:41,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 61 transitions, 339 flow [2025-01-10 01:05:41,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 61 transitions, 339 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 01:05:41,414 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 221 flow [2025-01-10 01:05:41,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2025-01-10 01:05:41,415 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2025-01-10 01:05:41,415 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 221 flow [2025-01-10 01:05:41,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:05:41,416 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:05:41,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 01:05:41,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:05:41,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:05:41,416 INFO L85 PathProgramCache]: Analyzing trace with hash -919178271, now seen corresponding path program 1 times [2025-01-10 01:05:41,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:05:41,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012273930] [2025-01-10 01:05:41,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:05:41,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:05:41,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 01:05:41,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 01:05:41,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:05:41,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:05:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:05:41,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:05:41,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012273930] [2025-01-10 01:05:41,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012273930] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:05:41,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:05:41,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:05:41,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425941346] [2025-01-10 01:05:41,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:05:41,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:05:41,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:05:41,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:05:41,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:05:41,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2025-01-10 01:05:41,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:05:41,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2025-01-10 01:05:41,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:05:41,685 INFO L124 PetriNetUnfolderBase]: 178/347 cut-off events. [2025-01-10 01:05:41,687 INFO L125 PetriNetUnfolderBase]: For 780/786 co-relation queries the response was YES. [2025-01-10 01:05:41,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 347 events. 178/347 cut-off events. For 780/786 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1414 event pairs, 23 based on Foata normal form. 7/345 useless extension candidates. Maximal degree in co-relation 435. Up to 215 conditions per place. [2025-01-10 01:05:41,691 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 42 selfloop transitions, 9 changer transitions 4/62 dead transitions. [2025-01-10 01:05:41,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 62 transitions, 425 flow [2025-01-10 01:05:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:05:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:05:41,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2025-01-10 01:05:41,694 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2025-01-10 01:05:41,694 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 221 flow. Second operand 5 states and 91 transitions. [2025-01-10 01:05:41,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 62 transitions, 425 flow [2025-01-10 01:05:41,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 421 flow, removed 2 selfloop flow, removed 0 redundant places. [2025-01-10 01:05:41,700 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 272 flow [2025-01-10 01:05:41,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=272, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2025-01-10 01:05:41,701 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 17 predicate places. [2025-01-10 01:05:41,702 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 272 flow [2025-01-10 01:05:41,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,702 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:05:41,702 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:05:41,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 01:05:41,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:05:41,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:05:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1748931165, now seen corresponding path program 2 times [2025-01-10 01:05:41,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:05:41,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52910203] [2025-01-10 01:05:41,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:05:41,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:05:41,711 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-01-10 01:05:41,723 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 01:05:41,726 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 01:05:41,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:05:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:05:41,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:05:41,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52910203] [2025-01-10 01:05:41,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52910203] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:05:41,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:05:41,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:05:41,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443834035] [2025-01-10 01:05:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:05:41,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:05:41,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:05:41,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:05:41,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:05:41,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2025-01-10 01:05:41,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:05:41,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2025-01-10 01:05:41,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:05:41,905 INFO L124 PetriNetUnfolderBase]: 159/320 cut-off events. [2025-01-10 01:05:41,906 INFO L125 PetriNetUnfolderBase]: For 908/916 co-relation queries the response was YES. [2025-01-10 01:05:41,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 320 events. 159/320 cut-off events. For 908/916 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1175 event pairs, 24 based on Foata normal form. 18/335 useless extension candidates. Maximal degree in co-relation 830. Up to 149 conditions per place. [2025-01-10 01:05:41,908 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 42 selfloop transitions, 12 changer transitions 2/63 dead transitions. [2025-01-10 01:05:41,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 484 flow [2025-01-10 01:05:41,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:05:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:05:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2025-01-10 01:05:41,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5933333333333334 [2025-01-10 01:05:41,909 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 272 flow. Second operand 5 states and 89 transitions. [2025-01-10 01:05:41,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 484 flow [2025-01-10 01:05:41,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 468 flow, removed 6 selfloop flow, removed 1 redundant places. [2025-01-10 01:05:41,913 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 335 flow [2025-01-10 01:05:41,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2025-01-10 01:05:41,914 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 23 predicate places. [2025-01-10 01:05:41,914 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 335 flow [2025-01-10 01:05:41,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:41,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:05:41,914 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] [2025-01-10 01:05:41,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 01:05:41,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:05:41,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:05:41,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1368787755, now seen corresponding path program 1 times [2025-01-10 01:05:41,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:05:41,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748261067] [2025-01-10 01:05:41,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:05:41,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:05:41,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 01:05:41,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 01:05:41,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:05:41,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:05:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:05:42,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:05:42,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748261067] [2025-01-10 01:05:42,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748261067] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:05:42,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:05:42,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:05:42,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515142808] [2025-01-10 01:05:42,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:05:42,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:05:42,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:05:42,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:05:42,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:05:42,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2025-01-10 01:05:42,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 335 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:42,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:05:42,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2025-01-10 01:05:42,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:05:42,198 INFO L124 PetriNetUnfolderBase]: 164/320 cut-off events. [2025-01-10 01:05:42,199 INFO L125 PetriNetUnfolderBase]: For 1095/1113 co-relation queries the response was YES. [2025-01-10 01:05:42,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 320 events. 164/320 cut-off events. For 1095/1113 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1156 event pairs, 37 based on Foata normal form. 3/310 useless extension candidates. Maximal degree in co-relation 933. Up to 105 conditions per place. [2025-01-10 01:05:42,200 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2025-01-10 01:05:42,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 559 flow [2025-01-10 01:05:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 01:05:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 01:05:42,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 84 transitions. [2025-01-10 01:05:42,202 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2025-01-10 01:05:42,202 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 335 flow. Second operand 6 states and 84 transitions. [2025-01-10 01:05:42,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 559 flow [2025-01-10 01:05:42,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 63 transitions, 542 flow, removed 7 selfloop flow, removed 1 redundant places. [2025-01-10 01:05:42,206 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2025-01-10 01:05:42,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2025-01-10 01:05:42,206 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 25 predicate places. [2025-01-10 01:05:42,206 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2025-01-10 01:05:42,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:05:42,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-01-10 01:05:42,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-01-10 01:05:42,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-01-10 01:05:42,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-01-10 01:05:42,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 01:05:42,210 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2025-01-10 01:05:42,212 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 01:05:42,212 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 01:05:42,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:05:42 BasicIcfg [2025-01-10 01:05:42,216 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 01:05:42,216 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 01:05:42,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 01:05:42,216 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 01:05:42,217 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:05:40" (3/4) ... [2025-01-10 01:05:42,218 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 01:05:42,220 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-10 01:05:42,221 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-10 01:05:42,223 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2025-01-10 01:05:42,223 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-10 01:05:42,223 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-10 01:05:42,224 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 01:05:42,270 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 01:05:42,270 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 01:05:42,270 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 01:05:42,271 INFO L158 Benchmark]: Toolchain (without parser) took 2592.89ms. Allocated memory was 469.8MB in the beginning and 142.6MB in the end (delta: -327.2MB). Free memory was 426.8MB in the beginning and 67.2MB in the end (delta: 359.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2025-01-10 01:05:42,271 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:05:42,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.33ms. Allocated memory was 469.8MB in the beginning and 142.6MB in the end (delta: -327.2MB). Free memory was 426.8MB in the beginning and 96.4MB in the end (delta: 330.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 01:05:42,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.68ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:05:42,272 INFO L158 Benchmark]: Boogie Preprocessor took 28.07ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:05:42,272 INFO L158 Benchmark]: RCFGBuilder took 411.87ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 72.8MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 01:05:42,272 INFO L158 Benchmark]: TraceAbstraction took 1815.03ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 72.2MB in the end (delta: -43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:05:42,273 INFO L158 Benchmark]: Witness Printer took 54.42ms. Allocated memory is still 142.6MB. Free memory was 72.2MB in the beginning and 67.2MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 01:05:42,273 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.33ms. Allocated memory was 469.8MB in the beginning and 142.6MB in the end (delta: -327.2MB). Free memory was 426.8MB in the beginning and 96.4MB in the end (delta: 330.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.68ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.07ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 411.87ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 72.8MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1815.03ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 72.2MB in the end (delta: -43.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 54.42ms. Allocated memory is still 142.6MB. Free memory was 72.2MB in the beginning and 67.2MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 60]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 442 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 3 mSDtfsCounter, 442 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=5, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 01:05:42,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE