./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:36:02,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:36:02,429 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-30 10:36:02,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:36:02,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:36:02,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:36:02,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:36:02,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:36:02,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:36:02,451 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:36:02,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:36:02,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:36:02,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:36:02,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-30 10:36:02,452 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:36:02,453 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:02,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:02,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:02,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:36:02,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:36:02,455 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2025-04-30 10:36:02,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:36:02,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:36:02,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:36:02,688 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:36:02,688 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:36:02,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2025-04-30 10:36:04,007 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f22d0a5b/c4440dbbda5f412fbc7f4eafd3a4d80a/FLAGba0c1eff7 [2025-04-30 10:36:04,273 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:36:04,273 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2025-04-30 10:36:04,290 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f22d0a5b/c4440dbbda5f412fbc7f4eafd3a4d80a/FLAGba0c1eff7 [2025-04-30 10:36:05,159 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f22d0a5b/c4440dbbda5f412fbc7f4eafd3a4d80a [2025-04-30 10:36:05,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:36:05,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:36:05,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:05,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:36:05,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:36:05,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8b64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05, skipping insertion in model container [2025-04-30 10:36:05,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:36:05,406 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:05,416 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:36:05,462 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:05,491 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:36:05,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05 WrapperNode [2025-04-30 10:36:05,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:05,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:05,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:36:05,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:36:05,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,520 INFO L138 Inliner]: procedures = 163, calls = 20, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 48 [2025-04-30 10:36:05,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:05,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:36:05,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:36:05,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:36:05,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,543 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-04-30 10:36:05,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,551 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:36:05,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:36:05,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:36:05,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:36:05,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (1/1) ... [2025-04-30 10:36:05,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:05,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:36:05,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:36:05,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:36:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:36:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:36:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:36:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:36:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:36:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:36:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:36:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:36:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:36:05,597 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:36:05,697 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:36:05,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:36:05,832 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:36:05,832 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:36:05,911 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:36:05,912 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:36:05,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:05 BoogieIcfgContainer [2025-04-30 10:36:05,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:36:05,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:36:05,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:36:05,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:36:05,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:36:05" (1/3) ... [2025-04-30 10:36:05,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf7518b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:05, skipping insertion in model container [2025-04-30 10:36:05,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:05" (2/3) ... [2025-04-30 10:36:05,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf7518b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:05, skipping insertion in model container [2025-04-30 10:36:05,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:05" (3/3) ... [2025-04-30 10:36:05,920 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2025-04-30 10:36:05,930 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:36:05,931 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_18-first-reads_true.i that has 2 procedures, 30 locations, 32 edges, 1 initial locations, 0 loop locations, and 3 error locations. [2025-04-30 10:36:05,931 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:36:05,955 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:36:05,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 73 flow [2025-04-30 10:36:06,000 INFO L116 PetriNetUnfolderBase]: 4/32 cut-off events. [2025-04-30 10:36:06,001 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:36:06,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 32 events. 4/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2025-04-30 10:36:06,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 33 transitions, 73 flow [2025-04-30 10:36:06,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 31 transitions, 68 flow [2025-04-30 10:36:06,010 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:36:06,020 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@427dc9a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:36:06,020 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-30 10:36:06,023 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:36:06,023 INFO L116 PetriNetUnfolderBase]: 2/9 cut-off events. [2025-04-30 10:36:06,024 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:36:06,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:06,024 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-04-30 10:36:06,024 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-04-30 10:36:06,028 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash 6971705, now seen corresponding path program 1 times [2025-04-30 10:36:06,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:06,034 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769167312] [2025-04-30 10:36:06,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:06,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-30 10:36:06,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-30 10:36:06,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:06,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:06,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:06,184 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769167312] [2025-04-30 10:36:06,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769167312] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:06,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:06,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:36:06,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209700803] [2025-04-30 10:36:06,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:06,193 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:06,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:06,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:06,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:06,221 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2025-04-30 10:36:06,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:06,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2025-04-30 10:36:06,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:06,308 INFO L116 PetriNetUnfolderBase]: 35/105 cut-off events. [2025-04-30 10:36:06,308 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-30 10:36:06,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 105 events. 35/105 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 324 event pairs, 30 based on Foata normal form. 11/110 useless extension candidates. Maximal degree in co-relation 180. Up to 75 conditions per place. [2025-04-30 10:36:06,309 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 18 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2025-04-30 10:36:06,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 104 flow [2025-04-30 10:36:06,312 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:06,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2025-04-30 10:36:06,320 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2025-04-30 10:36:06,321 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 68 flow. Second operand 3 states and 49 transitions. [2025-04-30 10:36:06,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 104 flow [2025-04-30 10:36:06,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:06,327 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 54 flow [2025-04-30 10:36:06,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2025-04-30 10:36:06,331 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2025-04-30 10:36:06,331 INFO L485 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 54 flow [2025-04-30 10:36:06,332 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:06,332 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:06,333 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:36:06,333 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-04-30 10:36:06,334 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash 143622149, now seen corresponding path program 1 times [2025-04-30 10:36:06,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:06,334 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455215510] [2025-04-30 10:36:06,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:06,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:06,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-30 10:36:06,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-30 10:36:06,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:06,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:06,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:06,453 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455215510] [2025-04-30 10:36:06,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455215510] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:06,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:06,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:36:06,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531944165] [2025-04-30 10:36:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:06,455 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:36:06,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:06,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:36:06,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:36:06,464 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2025-04-30 10:36:06,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:06,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2025-04-30 10:36:06,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:06,540 INFO L116 PetriNetUnfolderBase]: 30/84 cut-off events. [2025-04-30 10:36:06,541 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:36:06,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 84 events. 30/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 20 based on Foata normal form. 6/90 useless extension candidates. Maximal degree in co-relation 79. Up to 52 conditions per place. [2025-04-30 10:36:06,541 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 17 selfloop transitions, 4 changer transitions 0/24 dead transitions. [2025-04-30 10:36:06,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 100 flow [2025-04-30 10:36:06,545 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:36:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:36:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2025-04-30 10:36:06,546 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2025-04-30 10:36:06,546 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 54 flow. Second operand 4 states and 54 transitions. [2025-04-30 10:36:06,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 100 flow [2025-04-30 10:36:06,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:06,547 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 48 flow [2025-04-30 10:36:06,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2025-04-30 10:36:06,548 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2025-04-30 10:36:06,548 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 48 flow [2025-04-30 10:36:06,548 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,548 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:06,548 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:06,548 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:36:06,548 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-04-30 10:36:06,549 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash -29568860, now seen corresponding path program 1 times [2025-04-30 10:36:06,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:06,549 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731304735] [2025-04-30 10:36:06,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:06,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-30 10:36:06,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-30 10:36:06,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:06,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:06,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:06,654 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731304735] [2025-04-30 10:36:06,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731304735] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:06,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:06,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:06,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836914213] [2025-04-30 10:36:06,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:06,654 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:06,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:06,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:06,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:06,655 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2025-04-30 10:36:06,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:06,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2025-04-30 10:36:06,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:06,694 INFO L116 PetriNetUnfolderBase]: 14/57 cut-off events. [2025-04-30 10:36:06,695 INFO L117 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2025-04-30 10:36:06,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 57 events. 14/57 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 6 based on Foata normal form. 5/62 useless extension candidates. Maximal degree in co-relation 47. Up to 26 conditions per place. [2025-04-30 10:36:06,695 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 13 selfloop transitions, 4 changer transitions 0/22 dead transitions. [2025-04-30 10:36:06,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 88 flow [2025-04-30 10:36:06,696 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2025-04-30 10:36:06,698 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2025-04-30 10:36:06,699 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 48 flow. Second operand 3 states and 49 transitions. [2025-04-30 10:36:06,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 88 flow [2025-04-30 10:36:06,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:36:06,700 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 48 flow [2025-04-30 10:36:06,700 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2025-04-30 10:36:06,700 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2025-04-30 10:36:06,700 INFO L485 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 48 flow [2025-04-30 10:36:06,701 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,701 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:06,701 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:06,701 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:36:06,701 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2025-04-30 10:36:06,701 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:06,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1014554086, now seen corresponding path program 2 times [2025-04-30 10:36:06,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:06,701 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366202746] [2025-04-30 10:36:06,702 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:36:06,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:06,711 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-04-30 10:36:06,717 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-30 10:36:06,717 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:36:06,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:06,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:06,736 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366202746] [2025-04-30 10:36:06,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366202746] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:06,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:06,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:36:06,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894168568] [2025-04-30 10:36:06,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:06,736 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:06,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:06,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:06,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:06,737 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2025-04-30 10:36:06,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:06,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2025-04-30 10:36:06,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:06,765 INFO L116 PetriNetUnfolderBase]: 14/56 cut-off events. [2025-04-30 10:36:06,765 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-30 10:36:06,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 56 events. 14/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 14 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 16. Up to 47 conditions per place. [2025-04-30 10:36:06,766 INFO L140 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2025-04-30 10:36:06,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 74 flow [2025-04-30 10:36:06,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:06,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:06,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2025-04-30 10:36:06,767 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2025-04-30 10:36:06,768 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 48 flow. Second operand 3 states and 42 transitions. [2025-04-30 10:36:06,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 74 flow [2025-04-30 10:36:06,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:36:06,769 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2025-04-30 10:36:06,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2025-04-30 10:36:06,769 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2025-04-30 10:36:06,769 INFO L485 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2025-04-30 10:36:06,769 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:06,771 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-04-30 10:36:06,771 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-04-30 10:36:06,773 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2025-04-30 10:36:06,773 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-30 10:36:06,773 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:36:06,774 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-04-30 10:36:06,778 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:36:06,779 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:36:06,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:36:06 BasicIcfg [2025-04-30 10:36:06,782 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:36:06,783 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:36:06,783 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:36:06,783 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:36:06,784 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:05" (3/4) ... [2025-04-30 10:36:06,785 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:36:06,787 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:36:06,789 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-04-30 10:36:06,790 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-04-30 10:36:06,790 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-30 10:36:06,790 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:36:06,840 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:36:06,841 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:36:06,841 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:36:06,842 INFO L158 Benchmark]: Toolchain (without parser) took 1679.30ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 48.4MB in the end (delta: 57.6MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2025-04-30 10:36:06,842 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:06,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.61ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 83.9MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:36:06,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.49ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:06,843 INFO L158 Benchmark]: Boogie Preprocessor took 36.22ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:06,843 INFO L158 Benchmark]: RCFGBuilder took 354.46ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 59.7MB in the end (delta: 20.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:36:06,844 INFO L158 Benchmark]: TraceAbstraction took 869.26ms. Allocated memory is still 142.6MB. Free memory was 58.7MB in the beginning and 53.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2025-04-30 10:36:06,844 INFO L158 Benchmark]: Witness Printer took 57.87ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 48.4MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:36:06,845 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.61ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 83.9MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.49ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.22ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 354.46ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 59.7MB in the end (delta: 20.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 869.26ms. Allocated memory is still 142.6MB. Free memory was 58.7MB in the beginning and 53.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 57.87ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 48.4MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 40 edges, 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:36:06,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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