./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-theta/wsc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-theta/wsc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:46:59,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:46:59,622 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:46:59,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:46:59,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:46:59,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:46:59,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:46:59,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:46:59,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:46:59,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:46:59,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:46:59,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:46:59,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:46:59,653 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:46:59,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:46:59,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:46:59,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:46:59,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:46:59,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:46:59,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:46:59,654 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 -> cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 [2025-02-08 08:46:59,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:46:59,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:46:59,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:46:59,859 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:46:59,860 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:46:59,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/wsc.i [2025-02-08 08:47:01,039 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/57a03bd74/161d0553856c42eea911551779bdda88/FLAGab0e56c31 [2025-02-08 08:47:01,342 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:47:01,343 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-theta/wsc.i [2025-02-08 08:47:01,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/57a03bd74/161d0553856c42eea911551779bdda88/FLAGab0e56c31 [2025-02-08 08:47:01,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/57a03bd74/161d0553856c42eea911551779bdda88 [2025-02-08 08:47:01,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:47:01,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:47:01,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:47:01,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:47:01,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:47:01,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5870fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01, skipping insertion in model container [2025-02-08 08:47:01,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:47:01,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:47:01,889 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:47:01,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:47:01,943 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:47:01,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01 WrapperNode [2025-02-08 08:47:01,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:47:01,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:47:01,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:47:01,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:47:01,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,968 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 124 [2025-02-08 08:47:01,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:47:01,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:47:01,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:47:01,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:47:01,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,987 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2025-02-08 08:47:01,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,991 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:01,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:47:01,997 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:47:01,997 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:47:01,997 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:47:01,997 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (1/1) ... [2025-02-08 08:47:02,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:47:02,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:47:02,020 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) [2025-02-08 08:47:02,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:47:02,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:47:02,037 INFO L130 BoogieDeclarations]: Found specification of procedure f0 [2025-02-08 08:47:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure f0 [2025-02-08 08:47:02,037 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-02-08 08:47:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-02-08 08:47:02,037 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-02-08 08:47:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-02-08 08:47:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure f3 [2025-02-08 08:47:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure f3 [2025-02-08 08:47:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure f4 [2025-02-08 08:47:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure f4 [2025-02-08 08:47:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure f5 [2025-02-08 08:47:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure f5 [2025-02-08 08:47:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:47:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:47:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:47:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:47:02,039 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:47:02,145 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:47:02,146 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:47:02,347 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:47:02,347 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:47:02,467 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:47:02,467 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:47:02,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:47:02 BoogieIcfgContainer [2025-02-08 08:47:02,467 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:47:02,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:47:02,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:47:02,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:47:02,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:47:01" (1/3) ... [2025-02-08 08:47:02,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138dc1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:47:02, skipping insertion in model container [2025-02-08 08:47:02,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:47:01" (2/3) ... [2025-02-08 08:47:02,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138dc1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:47:02, skipping insertion in model container [2025-02-08 08:47:02,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:47:02" (3/3) ... [2025-02-08 08:47:02,475 INFO L128 eAbstractionObserver]: Analyzing ICFG wsc.i [2025-02-08 08:47:02,487 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:47:02,490 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG wsc.i that has 7 procedures, 55 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:47:02,490 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:47:02,548 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-08 08:47:02,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 55 transitions, 152 flow [2025-02-08 08:47:02,617 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2025-02-08 08:47:02,621 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 08:47:02,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 49 events. 1/49 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2025-02-08 08:47:02,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 55 transitions, 152 flow [2025-02-08 08:47:02,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 48 transitions, 132 flow [2025-02-08 08:47:02,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:47:02,637 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;@6d72d16b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:47:02,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 08:47:02,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:47:02,655 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-02-08 08:47:02,655 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 08:47:02,655 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:47:02,656 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, 1, 1, 1, 1, 1] [2025-02-08 08:47:02,656 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)] === [2025-02-08 08:47:02,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:47:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash 959181628, now seen corresponding path program 1 times [2025-02-08 08:47:02,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:47:02,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579719554] [2025-02-08 08:47:02,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:47:02,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:47:02,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 08:47:02,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 08:47:02,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:47:02,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:47:02,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:47:02,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:47:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579719554] [2025-02-08 08:47:02,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579719554] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:47:02,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:47:02,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:47:02,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037631018] [2025-02-08 08:47:02,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:47:02,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:47:02,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:47:02,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:47:02,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:47:02,995 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:47:02,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:02,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:47:02,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:47:02,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:47:05,762 INFO L124 PetriNetUnfolderBase]: 45933/58345 cut-off events. [2025-02-08 08:47:05,762 INFO L125 PetriNetUnfolderBase]: For 4811/4811 co-relation queries the response was YES. [2025-02-08 08:47:05,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120889 conditions, 58345 events. 45933/58345 cut-off events. For 4811/4811 co-relation queries the response was YES. Maximal size of possible extension queue 1771. Compared 286500 event pairs, 31565 based on Foata normal form. 190/58534 useless extension candidates. Maximal degree in co-relation 117357. Up to 58167 conditions per place. [2025-02-08 08:47:06,047 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 51 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2025-02-08 08:47:06,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 274 flow [2025-02-08 08:47:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:47:06,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:47:06,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2025-02-08 08:47:06,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818 [2025-02-08 08:47:06,056 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 132 flow. Second operand 3 states and 96 transitions. [2025-02-08 08:47:06,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 274 flow [2025-02-08 08:47:06,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 242 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-02-08 08:47:06,114 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 125 flow [2025-02-08 08:47:06,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2025-02-08 08:47:06,117 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -12 predicate places. [2025-02-08 08:47:06,117 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 125 flow [2025-02-08 08:47:06,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:06,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:47:06,118 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, 1, 1, 1, 1, 1] [2025-02-08 08:47:06,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:47:06,118 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)] === [2025-02-08 08:47:06,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:47:06,119 INFO L85 PathProgramCache]: Analyzing trace with hash -181480134, now seen corresponding path program 2 times [2025-02-08 08:47:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:47:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975433397] [2025-02-08 08:47:06,119 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:47:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:47:06,135 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 1 equivalence classes. [2025-02-08 08:47:06,143 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 08:47:06,143 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:47:06,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:47:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:47:06,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:47:06,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975433397] [2025-02-08 08:47:06,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975433397] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:47:06,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:47:06,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:47:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445694580] [2025-02-08 08:47:06,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:47:06,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:47:06,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:47:06,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:47:06,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:47:06,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:47:06,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:06,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:47:06,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:47:06,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:47:08,284 INFO L124 PetriNetUnfolderBase]: 35904/47104 cut-off events. [2025-02-08 08:47:08,284 INFO L125 PetriNetUnfolderBase]: For 10040/10040 co-relation queries the response was YES. [2025-02-08 08:47:08,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103694 conditions, 47104 events. 35904/47104 cut-off events. For 10040/10040 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 251895 event pairs, 10899 based on Foata normal form. 3802/50905 useless extension candidates. Maximal degree in co-relation 26724. Up to 32217 conditions per place. [2025-02-08 08:47:08,409 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 68 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2025-02-08 08:47:08,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 351 flow [2025-02-08 08:47:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:47:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:47:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2025-02-08 08:47:08,411 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 08:47:08,411 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 125 flow. Second operand 3 states and 110 transitions. [2025-02-08 08:47:08,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 351 flow [2025-02-08 08:47:08,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:47:08,417 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 164 flow [2025-02-08 08:47:08,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2025-02-08 08:47:08,417 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -9 predicate places. [2025-02-08 08:47:08,417 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 164 flow [2025-02-08 08:47:08,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:08,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:47:08,417 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, 1, 1, 1, 1, 1] [2025-02-08 08:47:08,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:47:08,418 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)] === [2025-02-08 08:47:08,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:47:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1920329892, now seen corresponding path program 3 times [2025-02-08 08:47:08,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:47:08,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134547564] [2025-02-08 08:47:08,418 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:47:08,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:47:08,430 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 1 equivalence classes. [2025-02-08 08:47:08,440 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 08:47:08,440 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:47:08,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:47:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:47:08,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:47:08,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134547564] [2025-02-08 08:47:08,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134547564] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:47:08,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:47:08,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:47:08,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930469683] [2025-02-08 08:47:08,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:47:08,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:47:08,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:47:08,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:47:08,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:47:08,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:47:08,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:08,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:47:08,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:47:08,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:47:10,319 INFO L124 PetriNetUnfolderBase]: 42168/55917 cut-off events. [2025-02-08 08:47:10,319 INFO L125 PetriNetUnfolderBase]: For 31411/31411 co-relation queries the response was YES. [2025-02-08 08:47:10,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134399 conditions, 55917 events. 42168/55917 cut-off events. For 31411/31411 co-relation queries the response was YES. Maximal size of possible extension queue 1637. Compared 309386 event pairs, 21775 based on Foata normal form. 1086/57002 useless extension candidates. Maximal degree in co-relation 28306. Up to 33365 conditions per place. [2025-02-08 08:47:10,451 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 68 selfloop transitions, 2 changer transitions 1/76 dead transitions. [2025-02-08 08:47:10,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 76 transitions, 395 flow [2025-02-08 08:47:10,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:47:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:47:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-02-08 08:47:10,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6181818181818182 [2025-02-08 08:47:10,452 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 164 flow. Second operand 3 states and 102 transitions. [2025-02-08 08:47:10,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 76 transitions, 395 flow [2025-02-08 08:47:10,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 367 flow, removed 7 selfloop flow, removed 2 redundant places. [2025-02-08 08:47:10,494 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 158 flow [2025-02-08 08:47:10,494 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2025-02-08 08:47:10,494 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -8 predicate places. [2025-02-08 08:47:10,495 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 158 flow [2025-02-08 08:47:10,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:10,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:47:10,495 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, 1, 1, 1, 1, 1] [2025-02-08 08:47:10,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:47:10,496 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)] === [2025-02-08 08:47:10,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:47:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1250707220, now seen corresponding path program 4 times [2025-02-08 08:47:10,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:47:10,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601519899] [2025-02-08 08:47:10,497 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:47:10,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:47:10,511 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-08 08:47:10,518 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 43 of 44 statements. [2025-02-08 08:47:10,518 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 08:47:10,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:47:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:47:10,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:47:10,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601519899] [2025-02-08 08:47:10,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601519899] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:47:10,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:47:10,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:47:10,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622897306] [2025-02-08 08:47:10,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:47:10,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:47:10,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:47:10,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:47:10,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:47:10,573 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:47:10,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:10,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:47:10,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:47:10,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:47:12,915 INFO L124 PetriNetUnfolderBase]: 48000/64389 cut-off events. [2025-02-08 08:47:12,916 INFO L125 PetriNetUnfolderBase]: For 28485/28485 co-relation queries the response was YES. [2025-02-08 08:47:12,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152343 conditions, 64389 events. 48000/64389 cut-off events. For 28485/28485 co-relation queries the response was YES. Maximal size of possible extension queue 1915. Compared 379829 event pairs, 21654 based on Foata normal form. 1850/66238 useless extension candidates. Maximal degree in co-relation 68294. Up to 34165 conditions per place. [2025-02-08 08:47:13,058 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 73 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2025-02-08 08:47:13,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 80 transitions, 404 flow [2025-02-08 08:47:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:47:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:47:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-02-08 08:47:13,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2025-02-08 08:47:13,060 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 158 flow. Second operand 3 states and 103 transitions. [2025-02-08 08:47:13,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 80 transitions, 404 flow [2025-02-08 08:47:13,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 80 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:47:13,440 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 168 flow [2025-02-08 08:47:13,440 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2025-02-08 08:47:13,440 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -6 predicate places. [2025-02-08 08:47:13,440 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 168 flow [2025-02-08 08:47:13,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:13,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:47:13,441 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, 1, 1, 1, 1, 1] [2025-02-08 08:47:13,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:47:13,441 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)] === [2025-02-08 08:47:13,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:47:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash -103920812, now seen corresponding path program 5 times [2025-02-08 08:47:13,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:47:13,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109448859] [2025-02-08 08:47:13,442 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:47:13,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:47:13,448 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 1 equivalence classes. [2025-02-08 08:47:13,452 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 08:47:13,452 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:47:13,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:47:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:47:13,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:47:13,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109448859] [2025-02-08 08:47:13,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109448859] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:47:13,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:47:13,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:47:13,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60840947] [2025-02-08 08:47:13,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:47:13,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:47:13,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:47:13,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:47:13,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:47:13,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:47:13,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:13,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:47:13,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:47:13,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:47:16,202 INFO L124 PetriNetUnfolderBase]: 52177/70768 cut-off events. [2025-02-08 08:47:16,202 INFO L125 PetriNetUnfolderBase]: For 37977/37977 co-relation queries the response was YES. [2025-02-08 08:47:16,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176471 conditions, 70768 events. 52177/70768 cut-off events. For 37977/37977 co-relation queries the response was YES. Maximal size of possible extension queue 2181. Compared 426194 event pairs, 30812 based on Foata normal form. 1994/72761 useless extension candidates. Maximal degree in co-relation 66406. Up to 47081 conditions per place. [2025-02-08 08:47:16,367 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 62 selfloop transitions, 2 changer transitions 9/78 dead transitions. [2025-02-08 08:47:16,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 78 transitions, 410 flow [2025-02-08 08:47:16,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:47:16,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:47:16,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2025-02-08 08:47:16,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2025-02-08 08:47:16,369 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 168 flow. Second operand 3 states and 100 transitions. [2025-02-08 08:47:16,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 78 transitions, 410 flow [2025-02-08 08:47:16,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 406 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:47:16,444 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 160 flow [2025-02-08 08:47:16,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2025-02-08 08:47:16,445 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2025-02-08 08:47:16,445 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 160 flow [2025-02-08 08:47:16,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:16,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:47:16,445 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, 1, 1, 1, 1, 1] [2025-02-08 08:47:16,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:47:16,445 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)] === [2025-02-08 08:47:16,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:47:16,446 INFO L85 PathProgramCache]: Analyzing trace with hash 460882470, now seen corresponding path program 6 times [2025-02-08 08:47:16,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:47:16,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121751543] [2025-02-08 08:47:16,446 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:47:16,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:47:16,454 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 44 statements into 1 equivalence classes. [2025-02-08 08:47:16,458 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 08:47:16,458 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:47:16,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:47:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:47:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:47:16,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121751543] [2025-02-08 08:47:16,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121751543] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:47:16,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:47:16,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:47:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109265344] [2025-02-08 08:47:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:47:16,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:47:16,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:47:16,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:47:16,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:47:16,679 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:47:16,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:16,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:47:16,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:47:16,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:47:17,877 INFO L124 PetriNetUnfolderBase]: 27255/37556 cut-off events. [2025-02-08 08:47:17,877 INFO L125 PetriNetUnfolderBase]: For 24736/24736 co-relation queries the response was YES. [2025-02-08 08:47:17,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98176 conditions, 37556 events. 27255/37556 cut-off events. For 24736/24736 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 219935 event pairs, 13951 based on Foata normal form. 1136/38691 useless extension candidates. Maximal degree in co-relation 43133. Up to 20315 conditions per place. [2025-02-08 08:47:17,944 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-02-08 08:47:17,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 337 flow [2025-02-08 08:47:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:47:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:47:17,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2025-02-08 08:47:17,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2025-02-08 08:47:17,945 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 160 flow. Second operand 3 states and 91 transitions. [2025-02-08 08:47:17,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 337 flow [2025-02-08 08:47:18,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 330 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 08:47:18,077 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-02-08 08:47:18,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-02-08 08:47:18,077 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -10 predicate places. [2025-02-08 08:47:18,077 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-02-08 08:47:18,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:47:18,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-02-08 08:47:18,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-02-08 08:47:18,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2025-02-08 08:47:18,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2025-02-08 08:47:18,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2025-02-08 08:47:18,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2025-02-08 08:47:18,079 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2025-02-08 08:47:18,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-02-08 08:47:18,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:47:18,080 INFO L422 BasicCegarLoop]: Path program histogram: [6] [2025-02-08 08:47:18,082 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:47:18,082 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:47:18,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:47:18 BasicIcfg [2025-02-08 08:47:18,085 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:47:18,085 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:47:18,085 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:47:18,085 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:47:18,086 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:47:02" (3/4) ... [2025-02-08 08:47:18,087 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:47:18,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f0 [2025-02-08 08:47:18,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2025-02-08 08:47:18,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2025-02-08 08:47:18,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f3 [2025-02-08 08:47:18,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f4 [2025-02-08 08:47:18,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f5 [2025-02-08 08:47:18,092 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2025-02-08 08:47:18,093 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-02-08 08:47:18,093 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-08 08:47:18,093 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 08:47:18,144 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:47:18,144 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:47:18,144 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:47:18,145 INFO L158 Benchmark]: Toolchain (without parser) took 16520.59ms. Allocated memory was 142.6MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 109.0MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2025-02-08 08:47:18,145 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:47:18,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.89ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 88.2MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:47:18,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.86ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:47:18,147 INFO L158 Benchmark]: Boogie Preprocessor took 25.51ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:47:18,147 INFO L158 Benchmark]: IcfgBuilder took 470.71ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 51.6MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 08:47:18,147 INFO L158 Benchmark]: TraceAbstraction took 15615.65ms. Allocated memory was 142.6MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 51.6MB in the beginning and 4.9GB in the end (delta: -4.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2025-02-08 08:47:18,148 INFO L158 Benchmark]: Witness Printer took 59.14ms. Allocated memory is still 7.1GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:47:18,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.89ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 88.2MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.86ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.51ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 470.71ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 51.6MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15615.65ms. Allocated memory was 142.6MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 51.6MB in the beginning and 4.9GB in the end (delta: -4.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Witness Printer took 59.14ms. Allocated memory is still 7.1GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 788]: 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 13 procedures, 89 locations, 8 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: 15.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 564 IncrementalHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 564 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=4, InterpolantAutomatonStates: 18, 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, 264 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:47:18,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE