./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:14:00,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:14:00,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 13:14:00,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:14:00,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:14:00,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:14:00,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:14:00,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:14:00,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:14:00,180 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:14:00,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:14:00,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:14:00,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:14:00,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:14:00,182 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:14:00,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:14:00,183 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 13:14:00,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:14:00,184 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 13:14:00,184 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:14:00,184 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:14:00,184 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:14:00,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:14:00,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:14:00,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:14:00,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:14:00,186 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2025-02-06 13:14:00,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:14:00,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:14:00,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:14:00,523 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:14:00,523 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:14:00,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-02-06 13:14:01,899 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f6ddf8a29/62f451b0ec7846b2926c3b98fb2acf83/FLAGc19283b1d [2025-02-06 13:14:01,922 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-02-06 13:14:02,295 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:14:02,298 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-02-06 13:14:02,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f6ddf8a29/62f451b0ec7846b2926c3b98fb2acf83/FLAGc19283b1d [2025-02-06 13:14:02,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f6ddf8a29/62f451b0ec7846b2926c3b98fb2acf83 [2025-02-06 13:14:02,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:14:02,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:14:02,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:14:02,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:14:02,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:14:02,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:02,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3466a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02, skipping insertion in model container [2025-02-06 13:14:02,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:02,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:14:02,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:14:02,845 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:14:02,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:14:02,962 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:14:02,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02 WrapperNode [2025-02-06 13:14:02,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:14:02,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:14:02,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:14:02,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:14:02,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:02,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,007 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2025-02-06 13:14:03,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:14:03,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:14:03,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:14:03,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:14:03,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,048 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2025-02-06 13:14:03,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,061 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:14:03,082 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:14:03,082 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:14:03,082 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:14:03,083 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (1/1) ... [2025-02-06 13:14:03,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:14:03,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:14:03,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 13:14:03,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 13:14:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 13:14:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 13:14:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 13:14:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 13:14:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 13:14:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 13:14:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 13:14:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 13:14:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 13:14:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:14:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:14:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 13:14:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 13:14:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:14:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:14:03,154 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 13:14:03,329 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:14:03,331 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:14:03,723 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 13:14:03,724 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:14:04,490 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:14:04,490 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:14:04,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:14:04 BoogieIcfgContainer [2025-02-06 13:14:04,491 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:14:04,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:14:04,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:14:04,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:14:04,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:14:02" (1/3) ... [2025-02-06 13:14:04,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547cd06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:14:04, skipping insertion in model container [2025-02-06 13:14:04,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:14:02" (2/3) ... [2025-02-06 13:14:04,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547cd06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:14:04, skipping insertion in model container [2025-02-06 13:14:04,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:14:04" (3/3) ... [2025-02-06 13:14:04,501 INFO L128 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2025-02-06 13:14:04,518 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:14:04,520 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_ok.i that has 3 procedures, 37 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2025-02-06 13:14:04,520 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 13:14:04,592 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 13:14:04,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2025-02-06 13:14:04,718 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2025-02-06 13:14:04,720 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 13:14:04,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2025-02-06 13:14:04,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2025-02-06 13:14:04,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2025-02-06 13:14:04,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:14:04,753 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;@28d52aa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:14:04,755 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 13:14:04,798 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 13:14:04,798 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2025-02-06 13:14:04,798 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 13:14:04,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:04,799 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:04,799 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:04,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:04,807 INFO L85 PathProgramCache]: Analyzing trace with hash 513080561, now seen corresponding path program 1 times [2025-02-06 13:14:04,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:04,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791077480] [2025-02-06 13:14:04,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:14:04,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:05,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 13:14:05,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 13:14:05,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:14:05,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:14:05,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:05,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791077480] [2025-02-06 13:14:05,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791077480] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:05,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:05,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:14:05,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523307420] [2025-02-06 13:14:05,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:05,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:14:05,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:05,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:14:05,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:14:05,676 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-06 13:14:05,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:05,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:05,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-06 13:14:05,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:05,976 INFO L124 PetriNetUnfolderBase]: 439/786 cut-off events. [2025-02-06 13:14:05,976 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-02-06 13:14:05,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1502 conditions, 786 events. 439/786 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3660 event pairs, 172 based on Foata normal form. 20/777 useless extension candidates. Maximal degree in co-relation 1436. Up to 416 conditions per place. [2025-02-06 13:14:05,990 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2025-02-06 13:14:05,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 205 flow [2025-02-06 13:14:05,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:14:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:14:06,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2025-02-06 13:14:06,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2025-02-06 13:14:06,006 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 92 flow. Second operand 3 states and 89 transitions. [2025-02-06 13:14:06,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 205 flow [2025-02-06 13:14:06,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 13:14:06,016 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 90 flow [2025-02-06 13:14:06,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2025-02-06 13:14:06,021 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2025-02-06 13:14:06,024 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 90 flow [2025-02-06 13:14:06,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:06,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:06,024 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:06,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:14:06,025 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:06,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1868221857, now seen corresponding path program 1 times [2025-02-06 13:14:06,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707456317] [2025-02-06 13:14:06,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:14:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:06,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 13:14:06,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 13:14:06,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:14:06,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:14:06,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:06,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707456317] [2025-02-06 13:14:06,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707456317] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:06,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:06,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:14:06,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343146068] [2025-02-06 13:14:06,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:06,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:14:06,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:06,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:14:06,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:14:06,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-06 13:14:06,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:06,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:06,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-06 13:14:06,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:06,682 INFO L124 PetriNetUnfolderBase]: 742/1327 cut-off events. [2025-02-06 13:14:06,682 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2025-02-06 13:14:06,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 1327 events. 742/1327 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6742 event pairs, 300 based on Foata normal form. 29/1324 useless extension candidates. Maximal degree in co-relation 964. Up to 697 conditions per place. [2025-02-06 13:14:06,698 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 40 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2025-02-06 13:14:06,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 219 flow [2025-02-06 13:14:06,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:14:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:14:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2025-02-06 13:14:06,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 13:14:06,701 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 90 flow. Second operand 3 states and 86 transitions. [2025-02-06 13:14:06,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 219 flow [2025-02-06 13:14:06,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:14:06,703 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 100 flow [2025-02-06 13:14:06,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2025-02-06 13:14:06,704 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2025-02-06 13:14:06,704 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 100 flow [2025-02-06 13:14:06,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:06,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:06,706 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:06,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 13:14:06,707 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:06,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:06,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1774076939, now seen corresponding path program 1 times [2025-02-06 13:14:06,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:06,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093030184] [2025-02-06 13:14:06,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:14:06,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:06,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 13:14:06,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 13:14:06,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:14:06,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:07,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:14:07,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:07,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093030184] [2025-02-06 13:14:07,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093030184] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:07,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:07,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:14:07,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689180708] [2025-02-06 13:14:07,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:07,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:14:07,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:07,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:14:07,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:14:07,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-06 13:14:07,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:07,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:07,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-06 13:14:07,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:07,361 INFO L124 PetriNetUnfolderBase]: 428/901 cut-off events. [2025-02-06 13:14:07,362 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2025-02-06 13:14:07,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 901 events. 428/901 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4338 event pairs, 182 based on Foata normal form. 64/959 useless extension candidates. Maximal degree in co-relation 607. Up to 373 conditions per place. [2025-02-06 13:14:07,369 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2025-02-06 13:14:07,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 220 flow [2025-02-06 13:14:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:14:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:14:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-02-06 13:14:07,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2025-02-06 13:14:07,372 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 100 flow. Second operand 3 states and 83 transitions. [2025-02-06 13:14:07,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 220 flow [2025-02-06 13:14:07,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:14:07,375 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 114 flow [2025-02-06 13:14:07,375 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2025-02-06 13:14:07,376 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2025-02-06 13:14:07,376 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 114 flow [2025-02-06 13:14:07,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:07,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:07,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:07,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 13:14:07,377 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:07,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:07,377 INFO L85 PathProgramCache]: Analyzing trace with hash -161148959, now seen corresponding path program 2 times [2025-02-06 13:14:07,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:07,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800242552] [2025-02-06 13:14:07,377 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:14:07,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:07,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-02-06 13:14:07,592 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 13:14:07,592 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:14:07,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:14:07,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:07,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800242552] [2025-02-06 13:14:07,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800242552] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:07,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:07,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:14:07,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318872124] [2025-02-06 13:14:07,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:07,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:14:07,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:07,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:14:07,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:14:07,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-06 13:14:07,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:07,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:07,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-06 13:14:07,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:07,931 INFO L124 PetriNetUnfolderBase]: 627/1306 cut-off events. [2025-02-06 13:14:07,931 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2025-02-06 13:14:07,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3080 conditions, 1306 events. 627/1306 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6846 event pairs, 183 based on Foata normal form. 30/1316 useless extension candidates. Maximal degree in co-relation 762. Up to 480 conditions per place. [2025-02-06 13:14:07,940 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 58 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2025-02-06 13:14:07,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 74 transitions, 358 flow [2025-02-06 13:14:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:14:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 13:14:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2025-02-06 13:14:07,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6918604651162791 [2025-02-06 13:14:07,942 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 114 flow. Second operand 4 states and 119 transitions. [2025-02-06 13:14:07,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 74 transitions, 358 flow [2025-02-06 13:14:07,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 74 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:14:07,947 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 122 flow [2025-02-06 13:14:07,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2025-02-06 13:14:07,949 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2025-02-06 13:14:07,949 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 122 flow [2025-02-06 13:14:07,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:07,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:07,950 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:07,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 13:14:07,950 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:07,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:07,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1674157639, now seen corresponding path program 3 times [2025-02-06 13:14:07,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:07,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323122476] [2025-02-06 13:14:07,952 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:14:07,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:08,206 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 3 equivalence classes. [2025-02-06 13:14:08,217 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 20 of 32 statements. [2025-02-06 13:14:08,217 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 13:14:08,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 13:14:08,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:08,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323122476] [2025-02-06 13:14:08,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323122476] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:08,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:08,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:14:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880788667] [2025-02-06 13:14:08,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:08,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:14:08,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:08,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:14:08,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:14:08,300 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-02-06 13:14:08,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:08,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:08,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-02-06 13:14:08,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:08,554 INFO L124 PetriNetUnfolderBase]: 849/1796 cut-off events. [2025-02-06 13:14:08,555 INFO L125 PetriNetUnfolderBase]: For 834/834 co-relation queries the response was YES. [2025-02-06 13:14:08,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4138 conditions, 1796 events. 849/1796 cut-off events. For 834/834 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9888 event pairs, 258 based on Foata normal form. 41/1814 useless extension candidates. Maximal degree in co-relation 1304. Up to 667 conditions per place. [2025-02-06 13:14:08,570 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 59 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2025-02-06 13:14:08,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 75 transitions, 380 flow [2025-02-06 13:14:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:14:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 13:14:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2025-02-06 13:14:08,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6802325581395349 [2025-02-06 13:14:08,571 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 122 flow. Second operand 4 states and 117 transitions. [2025-02-06 13:14:08,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 75 transitions, 380 flow [2025-02-06 13:14:08,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 75 transitions, 362 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-06 13:14:08,577 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 132 flow [2025-02-06 13:14:08,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2025-02-06 13:14:08,577 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-02-06 13:14:08,578 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 132 flow [2025-02-06 13:14:08,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:08,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:08,578 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:08,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 13:14:08,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:08,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:08,581 INFO L85 PathProgramCache]: Analyzing trace with hash 756874577, now seen corresponding path program 4 times [2025-02-06 13:14:08,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:08,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352756565] [2025-02-06 13:14:08,581 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:14:08,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:08,882 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 38 statements into 2 equivalence classes. [2025-02-06 13:14:08,887 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 37 of 38 statements. [2025-02-06 13:14:08,887 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-06 13:14:08,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:14:08,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:08,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352756565] [2025-02-06 13:14:08,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352756565] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:08,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:08,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:14:08,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875925356] [2025-02-06 13:14:08,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:08,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:14:08,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:08,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:14:08,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:14:08,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-06 13:14:08,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:08,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:08,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-06 13:14:08,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:09,155 INFO L124 PetriNetUnfolderBase]: 874/1809 cut-off events. [2025-02-06 13:14:09,155 INFO L125 PetriNetUnfolderBase]: For 867/867 co-relation queries the response was YES. [2025-02-06 13:14:09,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4321 conditions, 1809 events. 874/1809 cut-off events. For 867/867 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9841 event pairs, 567 based on Foata normal form. 1/1779 useless extension candidates. Maximal degree in co-relation 1533. Up to 1355 conditions per place. [2025-02-06 13:14:09,166 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 39 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2025-02-06 13:14:09,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 52 transitions, 255 flow [2025-02-06 13:14:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:14:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:14:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2025-02-06 13:14:09,168 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2025-02-06 13:14:09,168 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 132 flow. Second operand 3 states and 77 transitions. [2025-02-06 13:14:09,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 52 transitions, 255 flow [2025-02-06 13:14:09,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 249 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 13:14:09,172 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 126 flow [2025-02-06 13:14:09,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2025-02-06 13:14:09,174 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-02-06 13:14:09,175 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 126 flow [2025-02-06 13:14:09,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:09,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:09,175 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:09,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 13:14:09,175 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:09,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:09,176 INFO L85 PathProgramCache]: Analyzing trace with hash 419269280, now seen corresponding path program 1 times [2025-02-06 13:14:09,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:09,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70724689] [2025-02-06 13:14:09,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:14:09,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:09,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 13:14:09,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 13:14:09,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:14:09,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:09,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 13:14:09,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:09,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70724689] [2025-02-06 13:14:09,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70724689] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:09,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:09,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 13:14:09,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944079691] [2025-02-06 13:14:09,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:09,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:14:09,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:09,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:14:09,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:14:09,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-06 13:14:09,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:09,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:09,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-06 13:14:09,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:09,672 INFO L124 PetriNetUnfolderBase]: 874/1808 cut-off events. [2025-02-06 13:14:09,673 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2025-02-06 13:14:09,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4254 conditions, 1808 events. 874/1808 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9864 event pairs, 626 based on Foata normal form. 1/1778 useless extension candidates. Maximal degree in co-relation 3852. Up to 1470 conditions per place. [2025-02-06 13:14:09,682 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 27 selfloop transitions, 1 changer transitions 2/39 dead transitions. [2025-02-06 13:14:09,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 180 flow [2025-02-06 13:14:09,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:14:09,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:14:09,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2025-02-06 13:14:09,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2025-02-06 13:14:09,684 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 126 flow. Second operand 3 states and 67 transitions. [2025-02-06 13:14:09,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 180 flow [2025-02-06 13:14:09,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:14:09,690 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 121 flow [2025-02-06 13:14:09,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2025-02-06 13:14:09,692 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-02-06 13:14:09,692 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 121 flow [2025-02-06 13:14:09,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:09,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:09,693 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:09,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 13:14:09,693 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:09,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:09,694 INFO L85 PathProgramCache]: Analyzing trace with hash 33476740, now seen corresponding path program 1 times [2025-02-06 13:14:09,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:09,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818645290] [2025-02-06 13:14:09,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:14:09,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:09,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 13:14:09,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 13:14:09,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:14:09,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:14:10,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:10,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818645290] [2025-02-06 13:14:10,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818645290] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:14:10,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309341872] [2025-02-06 13:14:10,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:14:10,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:14:10,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:14:10,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:14:10,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 13:14:10,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 13:14:10,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 13:14:10,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:14:10,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:10,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:14:10,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:14:10,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:14:10,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:14:10,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:14:10,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309341872] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:14:10,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:14:10,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-06 13:14:10,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157065139] [2025-02-06 13:14:10,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:14:10,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 13:14:10,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:10,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 13:14:10,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:14:10,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-06 13:14:10,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 121 flow. Second operand has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:10,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:10,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-06 13:14:10,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:11,045 INFO L124 PetriNetUnfolderBase]: 1429/2782 cut-off events. [2025-02-06 13:14:11,046 INFO L125 PetriNetUnfolderBase]: For 1041/1041 co-relation queries the response was YES. [2025-02-06 13:14:11,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6540 conditions, 2782 events. 1429/2782 cut-off events. For 1041/1041 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 14993 event pairs, 191 based on Foata normal form. 84/2850 useless extension candidates. Maximal degree in co-relation 6529. Up to 547 conditions per place. [2025-02-06 13:14:11,063 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 95 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2025-02-06 13:14:11,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 109 transitions, 571 flow [2025-02-06 13:14:11,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 13:14:11,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 13:14:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2025-02-06 13:14:11,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2025-02-06 13:14:11,065 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 121 flow. Second operand 6 states and 177 transitions. [2025-02-06 13:14:11,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 109 transitions, 571 flow [2025-02-06 13:14:11,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 109 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:14:11,068 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 154 flow [2025-02-06 13:14:11,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2025-02-06 13:14:11,070 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2025-02-06 13:14:11,070 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 154 flow [2025-02-06 13:14:11,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:11,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:11,070 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:11,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 13:14:11,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:14:11,271 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:11,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash -103491972, now seen corresponding path program 2 times [2025-02-06 13:14:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:11,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876960020] [2025-02-06 13:14:11,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:14:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:11,469 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-02-06 13:14:11,506 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 13:14:11,507 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:14:11,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 13:14:11,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:11,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876960020] [2025-02-06 13:14:11,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876960020] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:14:11,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773619789] [2025-02-06 13:14:11,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:14:11,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:14:11,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:14:11,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:14:11,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 13:14:12,104 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-02-06 13:14:12,189 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 13:14:12,189 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:14:12,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:12,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:14:12,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:14:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 13:14:12,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:14:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 13:14:12,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773619789] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:14:12,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:14:12,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-06 13:14:12,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788671929] [2025-02-06 13:14:12,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:14:12,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 13:14:12,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:12,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 13:14:12,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:14:12,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-06 13:14:12,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 154 flow. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:12,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:12,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-06 13:14:12,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:12,792 INFO L124 PetriNetUnfolderBase]: 1868/3645 cut-off events. [2025-02-06 13:14:12,792 INFO L125 PetriNetUnfolderBase]: For 3048/3048 co-relation queries the response was YES. [2025-02-06 13:14:12,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9119 conditions, 3645 events. 1868/3645 cut-off events. For 3048/3048 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 20765 event pairs, 221 based on Foata normal form. 110/3737 useless extension candidates. Maximal degree in co-relation 9106. Up to 704 conditions per place. [2025-02-06 13:14:12,817 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 96 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2025-02-06 13:14:12,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 111 transitions, 698 flow [2025-02-06 13:14:12,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 13:14:12,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 13:14:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2025-02-06 13:14:12,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6705426356589147 [2025-02-06 13:14:12,819 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 154 flow. Second operand 6 states and 173 transitions. [2025-02-06 13:14:12,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 111 transitions, 698 flow [2025-02-06 13:14:12,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 111 transitions, 638 flow, removed 20 selfloop flow, removed 2 redundant places. [2025-02-06 13:14:12,825 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 176 flow [2025-02-06 13:14:12,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2025-02-06 13:14:12,826 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2025-02-06 13:14:12,826 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 176 flow [2025-02-06 13:14:12,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:12,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:12,826 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:12,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 13:14:13,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:14:13,027 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:13,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:13,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1624102702, now seen corresponding path program 3 times [2025-02-06 13:14:13,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:13,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038902466] [2025-02-06 13:14:13,028 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:14:13,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:13,235 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 63 statements into 5 equivalence classes. [2025-02-06 13:14:13,297 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 63 of 63 statements. [2025-02-06 13:14:13,297 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-06 13:14:13,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:13,803 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 13:14:13,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:13,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038902466] [2025-02-06 13:14:13,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038902466] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:14:13,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257450611] [2025-02-06 13:14:13,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:14:13,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:14:13,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:14:13,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:14:13,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 13:14:14,231 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 63 statements into 5 equivalence classes. [2025-02-06 13:14:14,306 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 63 of 63 statements. [2025-02-06 13:14:14,307 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-06 13:14:14,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:14,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:14:14,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:14:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-06 13:14:14,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:14:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-06 13:14:14,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257450611] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:14:14,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:14:14,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2025-02-06 13:14:14,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11239996] [2025-02-06 13:14:14,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:14:14,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 13:14:14,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:14,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 13:14:14,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-06 13:14:14,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-06 13:14:14,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 176 flow. Second operand has 14 states, 14 states have (on average 16.071428571428573) internal successors, (225), 14 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:14,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:14,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-06 13:14:14,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:15,703 INFO L124 PetriNetUnfolderBase]: 965/1982 cut-off events. [2025-02-06 13:14:15,704 INFO L125 PetriNetUnfolderBase]: For 2392/2392 co-relation queries the response was YES. [2025-02-06 13:14:15,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5531 conditions, 1982 events. 965/1982 cut-off events. For 2392/2392 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8114 event pairs, 43 based on Foata normal form. 2/1982 useless extension candidates. Maximal degree in co-relation 5515. Up to 371 conditions per place. [2025-02-06 13:14:15,718 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 185 selfloop transitions, 27 changer transitions 28/247 dead transitions. [2025-02-06 13:14:15,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 247 transitions, 1422 flow [2025-02-06 13:14:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 13:14:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-02-06 13:14:15,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 539 transitions. [2025-02-06 13:14:15,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5222868217054264 [2025-02-06 13:14:15,724 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 176 flow. Second operand 24 states and 539 transitions. [2025-02-06 13:14:15,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 247 transitions, 1422 flow [2025-02-06 13:14:15,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 247 transitions, 1390 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-02-06 13:14:15,733 INFO L231 Difference]: Finished difference. Result has 97 places, 61 transitions, 375 flow [2025-02-06 13:14:15,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=375, PETRI_PLACES=97, PETRI_TRANSITIONS=61} [2025-02-06 13:14:15,734 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 57 predicate places. [2025-02-06 13:14:15,734 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 61 transitions, 375 flow [2025-02-06 13:14:15,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.071428571428573) internal successors, (225), 14 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:15,735 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:14:15,735 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:14:15,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 13:14:15,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:14:15,937 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 13:14:15,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:14:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1386974890, now seen corresponding path program 4 times [2025-02-06 13:14:15,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:14:15,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494231997] [2025-02-06 13:14:15,938 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:14:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:14:16,223 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-02-06 13:14:16,233 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 73 of 75 statements. [2025-02-06 13:14:16,234 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-06 13:14:16,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:14:16,338 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:14:16,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:14:16,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494231997] [2025-02-06 13:14:16,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494231997] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:14:16,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:14:16,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 13:14:16,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99523484] [2025-02-06 13:14:16,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:14:16,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 13:14:16,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:14:16,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 13:14:16,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:14:16,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-02-06 13:14:16,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 61 transitions, 375 flow. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:16,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:14:16,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-02-06 13:14:16,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:14:16,634 INFO L124 PetriNetUnfolderBase]: 508/1085 cut-off events. [2025-02-06 13:14:16,634 INFO L125 PetriNetUnfolderBase]: For 3053/3053 co-relation queries the response was YES. [2025-02-06 13:14:16,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1085 events. 508/1085 cut-off events. For 3053/3053 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4333 event pairs, 23 based on Foata normal form. 22/1105 useless extension candidates. Maximal degree in co-relation 3440. Up to 235 conditions per place. [2025-02-06 13:14:16,640 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2025-02-06 13:14:16,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 102 transitions, 717 flow [2025-02-06 13:14:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 13:14:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 13:14:16,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2025-02-06 13:14:16,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913621262458472 [2025-02-06 13:14:16,645 INFO L175 Difference]: Start difference. First operand has 97 places, 61 transitions, 375 flow. Second operand 7 states and 178 transitions. [2025-02-06 13:14:16,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 102 transitions, 717 flow [2025-02-06 13:14:16,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 102 transitions, 634 flow, removed 6 selfloop flow, removed 16 redundant places. [2025-02-06 13:14:16,657 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2025-02-06 13:14:16,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2025-02-06 13:14:16,658 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 34 predicate places. [2025-02-06 13:14:16,658 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2025-02-06 13:14:16,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:14:16,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-06 13:14:16,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-02-06 13:14:16,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-06 13:14:16,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-06 13:14:16,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 13:14:16,662 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 1, 1, 1] [2025-02-06 13:14:16,665 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 13:14:16,666 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 13:14:16,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 01:14:16 BasicIcfg [2025-02-06 13:14:16,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 13:14:16,672 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 13:14:16,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 13:14:16,673 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 13:14:16,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:14:04" (3/4) ... [2025-02-06 13:14:16,675 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 13:14:16,678 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 13:14:16,678 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 13:14:16,688 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 144 nodes and edges [2025-02-06 13:14:16,689 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2025-02-06 13:14:16,689 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2025-02-06 13:14:16,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-06 13:14:16,691 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-06 13:14:16,691 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 13:14:16,691 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 13:14:16,783 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 13:14:16,784 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 13:14:16,784 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 13:14:16,784 INFO L158 Benchmark]: Toolchain (without parser) took 14441.29ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 104.6MB in the beginning and 169.1MB in the end (delta: -64.5MB). Peak memory consumption was 297.5MB. Max. memory is 16.1GB. [2025-02-06 13:14:16,785 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:14:16,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.58ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 76.6MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 13:14:16,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.85ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 13:14:16,787 INFO L158 Benchmark]: Boogie Preprocessor took 70.57ms. Allocated memory is still 142.6MB. Free memory was 73.3MB in the beginning and 71.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:14:16,787 INFO L158 Benchmark]: IcfgBuilder took 1408.79ms. Allocated memory is still 142.6MB. Free memory was 71.1MB in the beginning and 52.6MB in the end (delta: 18.5MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2025-02-06 13:14:16,787 INFO L158 Benchmark]: TraceAbstraction took 12178.82ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 52.6MB in the beginning and 177.5MB in the end (delta: -124.9MB). Peak memory consumption was 236.3MB. Max. memory is 16.1GB. [2025-02-06 13:14:16,788 INFO L158 Benchmark]: Witness Printer took 111.49ms. Allocated memory is still 503.3MB. Free memory was 177.5MB in the beginning and 169.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 13:14:16,790 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.58ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 76.6MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.85ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.57ms. Allocated memory is still 142.6MB. Free memory was 73.3MB in the beginning and 71.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1408.79ms. Allocated memory is still 142.6MB. Free memory was 71.1MB in the beginning and 52.6MB in the end (delta: 18.5MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12178.82ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 52.6MB in the beginning and 177.5MB in the end (delta: -124.9MB). Peak memory consumption was 236.3MB. Max. memory is 16.1GB. * Witness Printer took 111.49ms. Allocated memory is still 503.3MB. Free memory was 177.5MB in the beginning and 169.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 906]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.0s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 793 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 776 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2079 IncrementalHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 2 mSDtfsCounter, 2079 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 311 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=375occurred in iteration=10, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 576 NumberOfCodeBlocks, 561 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 712 ConstructedInterpolants, 0 QuantifiedInterpolants, 1894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1471 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 327/423 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! [2025-02-06 13:14:16,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE