./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:36:42,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:36:42,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-30 10:36:42,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:36:42,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:36:42,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:36:42,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:36:42,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:36:42,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:36:42,691 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:36:42,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:36:42,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:36:42,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:36:42,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:36:42,692 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:36:42,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:36:42,693 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:36:42,694 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:42,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:42,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:42,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:36:42,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:36:42,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:36:42,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:36:42,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:36:42,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:36:42,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:36:42,695 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/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 -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2025-04-30 10:36:42,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:36:42,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:36:42,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:36:42,923 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:36:42,923 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:36:42,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2025-04-30 10:36:44,161 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8bac5444/69e7c071eaf54b3888ca47de27daca10/FLAG55c4126fe [2025-04-30 10:36:44,444 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:36:44,445 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2025-04-30 10:36:44,459 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8bac5444/69e7c071eaf54b3888ca47de27daca10/FLAG55c4126fe [2025-04-30 10:36:45,212 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8bac5444/69e7c071eaf54b3888ca47de27daca10 [2025-04-30 10:36:45,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:36:45,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:36:45,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:45,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:36:45,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:36:45,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5642014e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45, skipping insertion in model container [2025-04-30 10:36:45,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:36:45,466 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:45,478 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:36:45,519 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:45,544 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:36:45,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45 WrapperNode [2025-04-30 10:36:45,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:45,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:45,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:36:45,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:36:45,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,589 INFO L138 Inliner]: procedures = 162, calls = 22, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 83 [2025-04-30 10:36:45,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:45,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:36:45,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:36:45,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:36:45,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,599 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,607 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-04-30 10:36:45,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,611 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:36:45,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:36:45,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:36:45,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:36:45,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (1/1) ... [2025-04-30 10:36:45,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:45,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:36:45,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:36:45,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:36:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:36:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:36:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:36:45,662 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:36:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:36:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:36:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:36:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:36:45,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:36:45,663 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:36:45,757 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:36:45,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:36:45,897 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:36:45,898 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:36:45,976 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:36:45,976 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:36:45,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:45 BoogieIcfgContainer [2025-04-30 10:36:45,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:36:45,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:36:45,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:36:45,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:36:45,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:36:45" (1/3) ... [2025-04-30 10:36:45,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d56806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:45, skipping insertion in model container [2025-04-30 10:36:45,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:45" (2/3) ... [2025-04-30 10:36:45,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d56806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:45, skipping insertion in model container [2025-04-30 10:36:45,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:45" (3/3) ... [2025-04-30 10:36:45,983 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2025-04-30 10:36:45,993 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:36:45,994 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_25-struct_nr_true.i that has 2 procedures, 42 locations, 48 edges, 1 initial locations, 0 loop locations, and 5 error locations. [2025-04-30 10:36:45,994 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:36:46,023 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:36:46,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2025-04-30 10:36:46,072 INFO L116 PetriNetUnfolderBase]: 8/48 cut-off events. [2025-04-30 10:36:46,074 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:36:46,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 48 events. 8/48 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 87 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2025-04-30 10:36:46,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2025-04-30 10:36:46,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2025-04-30 10:36:46,083 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:36:46,092 INFO L340 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;@25312eef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:36:46,092 INFO L341 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-04-30 10:36:46,095 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:36:46,095 INFO L116 PetriNetUnfolderBase]: 2/9 cut-off events. [2025-04-30 10:36:46,095 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:36:46,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:46,096 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-04-30 10:36:46,096 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-30 10:36:46,100 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:46,100 INFO L85 PathProgramCache]: Analyzing trace with hash 9126208, now seen corresponding path program 1 times [2025-04-30 10:36:46,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:46,105 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591207617] [2025-04-30 10:36:46,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:46,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:46,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-30 10:36:46,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-30 10:36:46,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:46,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:46,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:46,276 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591207617] [2025-04-30 10:36:46,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591207617] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:46,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:46,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:36:46,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380874028] [2025-04-30 10:36:46,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:46,283 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:46,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:46,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:46,337 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2025-04-30 10:36:46,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-04-30 10:36:46,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:46,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2025-04-30 10:36:46,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:46,444 INFO L116 PetriNetUnfolderBase]: 63/202 cut-off events. [2025-04-30 10:36:46,444 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:36:46,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 202 events. 63/202 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 920 event pairs, 54 based on Foata normal form. 51/241 useless extension candidates. Maximal degree in co-relation 337. Up to 127 conditions per place. [2025-04-30 10:36:46,446 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 26 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2025-04-30 10:36:46,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 148 flow [2025-04-30 10:36:46,449 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:46,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-04-30 10:36:46,458 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.564625850340136 [2025-04-30 10:36:46,459 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 83 transitions. [2025-04-30 10:36:46,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 148 flow [2025-04-30 10:36:46,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:46,466 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 74 flow [2025-04-30 10:36:46,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2025-04-30 10:36:46,472 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2025-04-30 10:36:46,473 INFO L485 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 74 flow [2025-04-30 10:36:46,473 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-04-30 10:36:46,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:46,473 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:46,474 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:36:46,474 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-30 10:36:46,475 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:46,475 INFO L85 PathProgramCache]: Analyzing trace with hash -862377079, now seen corresponding path program 1 times [2025-04-30 10:36:46,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:46,475 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163974739] [2025-04-30 10:36:46,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:46,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:46,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-30 10:36:46,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-30 10:36:46,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:46,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:46,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:46,598 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163974739] [2025-04-30 10:36:46,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163974739] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:46,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:46,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:46,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069126086] [2025-04-30 10:36:46,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:46,599 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:46,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:46,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:46,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:46,602 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2025-04-30 10:36:46,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:46,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:46,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2025-04-30 10:36:46,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:46,720 INFO L116 PetriNetUnfolderBase]: 62/190 cut-off events. [2025-04-30 10:36:46,721 INFO L117 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-04-30 10:36:46,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 190 events. 62/190 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 783 event pairs, 25 based on Foata normal form. 10/200 useless extension candidates. Maximal degree in co-relation 190. Up to 83 conditions per place. [2025-04-30 10:36:46,722 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 33 selfloop transitions, 6 changer transitions 0/50 dead transitions. [2025-04-30 10:36:46,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 190 flow [2025-04-30 10:36:46,722 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:36:46,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:36:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2025-04-30 10:36:46,723 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4489795918367347 [2025-04-30 10:36:46,723 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 74 flow. Second operand 5 states and 110 transitions. [2025-04-30 10:36:46,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 190 flow [2025-04-30 10:36:46,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 50 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:46,725 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 102 flow [2025-04-30 10:36:46,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2025-04-30 10:36:46,726 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2025-04-30 10:36:46,726 INFO L485 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 102 flow [2025-04-30 10:36:46,726 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:46,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:46,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:46,726 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:36:46,726 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-30 10:36:46,727 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:46,727 INFO L85 PathProgramCache]: Analyzing trace with hash 417072151, now seen corresponding path program 1 times [2025-04-30 10:36:46,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:46,727 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341979509] [2025-04-30 10:36:46,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:46,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:46,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-30 10:36:46,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-30 10:36:46,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:46,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:46,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:46,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:46,829 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341979509] [2025-04-30 10:36:46,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341979509] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:46,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:46,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:46,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232311407] [2025-04-30 10:36:46,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:46,829 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:46,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:46,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:46,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:46,833 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2025-04-30 10:36:46,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2025-04-30 10:36:46,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:46,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2025-04-30 10:36:46,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:46,935 INFO L116 PetriNetUnfolderBase]: 57/160 cut-off events. [2025-04-30 10:36:46,936 INFO L117 PetriNetUnfolderBase]: For 68/76 co-relation queries the response was YES. [2025-04-30 10:36:46,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 160 events. 57/160 cut-off events. For 68/76 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 596 event pairs, 16 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 134. Up to 72 conditions per place. [2025-04-30 10:36:46,937 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 31 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2025-04-30 10:36:46,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 48 transitions, 216 flow [2025-04-30 10:36:46,937 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:36:46,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:36:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2025-04-30 10:36:46,938 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4530612244897959 [2025-04-30 10:36:46,938 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 102 flow. Second operand 5 states and 111 transitions. [2025-04-30 10:36:46,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 48 transitions, 216 flow [2025-04-30 10:36:46,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:46,940 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 136 flow [2025-04-30 10:36:46,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2025-04-30 10:36:46,940 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2025-04-30 10:36:46,940 INFO L485 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 136 flow [2025-04-30 10:36:46,940 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2025-04-30 10:36:46,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:46,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:46,941 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:36:46,941 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-30 10:36:46,941 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:46,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1980935580, now seen corresponding path program 1 times [2025-04-30 10:36:46,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:46,941 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053428548] [2025-04-30 10:36:46,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:46,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:46,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-30 10:36:46,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-30 10:36:46,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:46,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:47,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:47,020 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053428548] [2025-04-30 10:36:47,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053428548] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:47,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:47,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:47,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793874745] [2025-04-30 10:36:47,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:47,020 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:47,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:47,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:47,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:47,021 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2025-04-30 10:36:47,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:47,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:47,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2025-04-30 10:36:47,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:47,067 INFO L116 PetriNetUnfolderBase]: 17/80 cut-off events. [2025-04-30 10:36:47,067 INFO L117 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-04-30 10:36:47,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 80 events. 17/80 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 182 event pairs, 4 based on Foata normal form. 7/87 useless extension candidates. Maximal degree in co-relation 98. Up to 38 conditions per place. [2025-04-30 10:36:47,068 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 20 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2025-04-30 10:36:47,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 181 flow [2025-04-30 10:36:47,069 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-04-30 10:36:47,069 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2025-04-30 10:36:47,069 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 136 flow. Second operand 3 states and 71 transitions. [2025-04-30 10:36:47,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 181 flow [2025-04-30 10:36:47,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 37 transitions, 173 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:47,071 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 127 flow [2025-04-30 10:36:47,071 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-04-30 10:36:47,071 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2025-04-30 10:36:47,071 INFO L485 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 127 flow [2025-04-30 10:36:47,071 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:47,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:47,071 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:47,071 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:36:47,072 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-30 10:36:47,072 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:47,072 INFO L85 PathProgramCache]: Analyzing trace with hash -526624621, now seen corresponding path program 1 times [2025-04-30 10:36:47,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:47,072 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365530172] [2025-04-30 10:36:47,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:47,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:47,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-30 10:36:47,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-30 10:36:47,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:47,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:47,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:47,148 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365530172] [2025-04-30 10:36:47,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365530172] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:47,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:47,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:36:47,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567419572] [2025-04-30 10:36:47,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:47,148 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:36:47,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:47,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:36:47,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:36:47,151 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2025-04-30 10:36:47,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2025-04-30 10:36:47,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:47,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2025-04-30 10:36:47,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:47,223 INFO L116 PetriNetUnfolderBase]: 19/79 cut-off events. [2025-04-30 10:36:47,223 INFO L117 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-04-30 10:36:47,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 79 events. 19/79 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 9 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 110. Up to 28 conditions per place. [2025-04-30 10:36:47,224 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 22 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2025-04-30 10:36:47,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 38 transitions, 200 flow [2025-04-30 10:36:47,225 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:36:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:36:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2025-04-30 10:36:47,226 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2025-04-30 10:36:47,226 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 127 flow. Second operand 6 states and 112 transitions. [2025-04-30 10:36:47,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 38 transitions, 200 flow [2025-04-30 10:36:47,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:47,228 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 138 flow [2025-04-30 10:36:47,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2025-04-30 10:36:47,228 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2025-04-30 10:36:47,228 INFO L485 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 138 flow [2025-04-30 10:36:47,228 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2025-04-30 10:36:47,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:47,228 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:47,228 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:36:47,228 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-30 10:36:47,229 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash 541578241, now seen corresponding path program 1 times [2025-04-30 10:36:47,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:47,229 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052984803] [2025-04-30 10:36:47,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:47,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:47,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-30 10:36:47,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-30 10:36:47,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:47,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:47,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:47,306 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052984803] [2025-04-30 10:36:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052984803] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:47,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:36:47,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433351478] [2025-04-30 10:36:47,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:47,307 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:36:47,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:47,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:36:47,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:36:47,309 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2025-04-30 10:36:47,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2025-04-30 10:36:47,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:47,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2025-04-30 10:36:47,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:47,385 INFO L116 PetriNetUnfolderBase]: 17/78 cut-off events. [2025-04-30 10:36:47,387 INFO L117 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2025-04-30 10:36:47,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 78 events. 17/78 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 event pairs, 4 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 110. Up to 15 conditions per place. [2025-04-30 10:36:47,387 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 27 selfloop transitions, 9 changer transitions 0/42 dead transitions. [2025-04-30 10:36:47,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 237 flow [2025-04-30 10:36:47,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-30 10:36:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-04-30 10:36:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2025-04-30 10:36:47,389 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.38010204081632654 [2025-04-30 10:36:47,389 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 138 flow. Second operand 8 states and 149 transitions. [2025-04-30 10:36:47,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 237 flow [2025-04-30 10:36:47,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 217 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-30 10:36:47,390 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 139 flow [2025-04-30 10:36:47,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=139, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2025-04-30 10:36:47,391 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2025-04-30 10:36:47,391 INFO L485 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 139 flow [2025-04-30 10:36:47,391 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2025-04-30 10:36:47,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:47,391 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] [2025-04-30 10:36:47,391 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:36:47,391 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-30 10:36:47,391 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:47,392 INFO L85 PathProgramCache]: Analyzing trace with hash 293300969, now seen corresponding path program 1 times [2025-04-30 10:36:47,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:47,392 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939127133] [2025-04-30 10:36:47,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:47,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:47,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-30 10:36:47,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-30 10:36:47,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:47,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:47,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:47,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:47,423 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939127133] [2025-04-30 10:36:47,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939127133] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:47,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:47,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:36:47,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474712892] [2025-04-30 10:36:47,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:47,424 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:47,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:47,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:47,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:47,426 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2025-04-30 10:36:47,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:47,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:47,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2025-04-30 10:36:47,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:47,452 INFO L116 PetriNetUnfolderBase]: 15/74 cut-off events. [2025-04-30 10:36:47,452 INFO L117 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2025-04-30 10:36:47,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 74 events. 15/74 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 15 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 110. Up to 57 conditions per place. [2025-04-30 10:36:47,452 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2025-04-30 10:36:47,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 29 transitions, 179 flow [2025-04-30 10:36:47,453 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2025-04-30 10:36:47,454 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4217687074829932 [2025-04-30 10:36:47,454 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 139 flow. Second operand 3 states and 62 transitions. [2025-04-30 10:36:47,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 29 transitions, 179 flow [2025-04-30 10:36:47,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 163 flow, removed 1 selfloop flow, removed 6 redundant places. [2025-04-30 10:36:47,457 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2025-04-30 10:36:47,457 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2025-04-30 10:36:47,458 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2025-04-30 10:36:47,458 INFO L485 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2025-04-30 10:36:47,458 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2025-04-30 10:36:47,460 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2025-04-30 10:36:47,460 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-30 10:36:47,462 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:47,468 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:36:47,468 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:36:47,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:36:47 BasicIcfg [2025-04-30 10:36:47,474 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:36:47,474 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:36:47,474 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:36:47,475 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:36:47,475 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:45" (3/4) ... [2025-04-30 10:36:47,476 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:36:47,478 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:36:47,481 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-04-30 10:36:47,481 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-04-30 10:36:47,482 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-30 10:36:47,484 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:36:47,545 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:36:47,545 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:36:47,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:36:47,546 INFO L158 Benchmark]: Toolchain (without parser) took 2330.94ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 109.0MB in the beginning and 308.7MB in the end (delta: -199.7MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2025-04-30 10:36:47,546 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 192.9MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:47,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.57ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 86.5MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:36:47,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.71ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 84.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:47,548 INFO L158 Benchmark]: Boogie Preprocessor took 30.02ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 82.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:47,548 INFO L158 Benchmark]: RCFGBuilder took 355.30ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 61.1MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:36:47,551 INFO L158 Benchmark]: TraceAbstraction took 1495.89ms. Allocated memory is still 142.6MB. Free memory was 60.5MB in the beginning and 46.4MB in the end (delta: 14.1MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2025-04-30 10:36:47,551 INFO L158 Benchmark]: Witness Printer took 71.05ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 46.4MB in the beginning and 308.7MB in the end (delta: -262.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:36:47,552 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 192.9MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.57ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 86.5MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.71ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 84.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.02ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 82.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.30ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 61.1MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1495.89ms. Allocated memory is still 142.6MB. Free memory was 60.5MB in the beginning and 46.4MB in the end (delta: 14.1MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 71.05ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 46.4MB in the beginning and 308.7MB in the end (delta: -262.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 697]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 61 locations, 72 edges, 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: 1.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 380 IncrementalHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 4 mSDtfsCounter, 380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=6, InterpolantAutomatonStates: 33, 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, 0.5s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:36:47,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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