./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_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_27-multiple-protecting2_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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:36:43,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:36:43,394 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-30 10:36:43,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:36:43,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:36:43,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:36:43,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:36:43,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:36:43,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:36:43,416 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:36:43,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:36:43,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:36:43,416 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:36:43,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:36:43,416 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:36:43,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:36:43,416 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:36:43,417 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:43,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:36:43,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:43,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:36:43,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:36:43,418 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 -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2025-04-30 10:36:43,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:36:43,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:36:43,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:36:43,614 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:36:43,615 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:36:43,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2025-04-30 10:36:44,836 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63668db8/92de5de65a7a446c8e9da055b9186521/FLAG012c3e327 [2025-04-30 10:36:45,065 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:36:45,066 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2025-04-30 10:36:45,081 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63668db8/92de5de65a7a446c8e9da055b9186521/FLAG012c3e327 [2025-04-30 10:36:46,037 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63668db8/92de5de65a7a446c8e9da055b9186521 [2025-04-30 10:36:46,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:36:46,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:36:46,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:46,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:36:46,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:36:46,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3ca17d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46, skipping insertion in model container [2025-04-30 10:36:46,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:36:46,365 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:46,398 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:36:46,459 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:46,486 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:36:46,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46 WrapperNode [2025-04-30 10:36:46,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:46,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:46,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:36:46,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:36:46,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,522 INFO L138 Inliner]: procedures = 163, calls = 55, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 117 [2025-04-30 10:36:46,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:46,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:36:46,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:36:46,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:36:46,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,545 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2025-04-30 10:36:46,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,550 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:36:46,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:36:46,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:36:46,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:36:46,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (1/1) ... [2025-04-30 10:36:46,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:46,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:36:46,581 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 10:36:46,583 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 10:36:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-04-30 10:36:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-04-30 10:36:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:36:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:36:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:36:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:36:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:36:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:36:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-30 10:36:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-30 10:36:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:36:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:36:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:36:46,600 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 10:36:46,709 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:36:46,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:36:46,960 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:36:46,961 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:36:47,099 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:36:47,099 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:36:47,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:47 BoogieIcfgContainer [2025-04-30 10:36:47,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:36:47,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:36:47,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:36:47,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:36:47,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:36:46" (1/3) ... [2025-04-30 10:36:47,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609369be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:47, skipping insertion in model container [2025-04-30 10:36:47,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:46" (2/3) ... [2025-04-30 10:36:47,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609369be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:47, skipping insertion in model container [2025-04-30 10:36:47,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:47" (3/3) ... [2025-04-30 10:36:47,110 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2025-04-30 10:36:47,119 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:36:47,121 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_27-multiple-protecting2_true.i that has 3 procedures, 87 locations, 92 edges, 1 initial locations, 0 loop locations, and 5 error locations. [2025-04-30 10:36:47,121 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:36:47,168 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-30 10:36:47,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 202 flow [2025-04-30 10:36:47,238 INFO L116 PetriNetUnfolderBase]: 8/92 cut-off events. [2025-04-30 10:36:47,240 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-30 10:36:47,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 8/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2025-04-30 10:36:47,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 202 flow [2025-04-30 10:36:47,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 194 flow [2025-04-30 10:36:47,251 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:36:47,259 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;@45baf883, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:36:47,260 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-30 10:36:47,270 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:36:47,271 INFO L116 PetriNetUnfolderBase]: 2/34 cut-off events. [2025-04-30 10:36:47,271 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:36:47,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:47,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:47,272 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:47,275 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1643910906, now seen corresponding path program 1 times [2025-04-30 10:36:47,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:47,298 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036286065] [2025-04-30 10:36:47,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:47,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:47,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:36:47,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:36:47,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:47,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:47,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:47,551 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036286065] [2025-04-30 10:36:47,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036286065] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:47,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:47,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:47,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15645519] [2025-04-30 10:36:47,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:47,560 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:47,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:47,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:47,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:47,598 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2025-04-30 10:36:47,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:47,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:47,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2025-04-30 10:36:47,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:48,525 INFO L116 PetriNetUnfolderBase]: 5526/9846 cut-off events. [2025-04-30 10:36:48,525 INFO L117 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-04-30 10:36:48,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18561 conditions, 9846 events. 5526/9846 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 69860 event pairs, 1275 based on Foata normal form. 610/10136 useless extension candidates. Maximal degree in co-relation 18498. Up to 5197 conditions per place. [2025-04-30 10:36:48,566 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 101 selfloop transitions, 19 changer transitions 0/146 dead transitions. [2025-04-30 10:36:48,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 547 flow [2025-04-30 10:36:48,567 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:36:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:36:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 276 transitions. [2025-04-30 10:36:48,575 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5872340425531914 [2025-04-30 10:36:48,576 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 194 flow. Second operand 5 states and 276 transitions. [2025-04-30 10:36:48,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 547 flow [2025-04-30 10:36:48,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 146 transitions, 537 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-30 10:36:48,584 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 286 flow [2025-04-30 10:36:48,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2025-04-30 10:36:48,588 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2025-04-30 10:36:48,588 INFO L485 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 286 flow [2025-04-30 10:36:48,589 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 10:36:48,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:48,589 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:48,589 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:36:48,590 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:48,591 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:48,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1778297083, now seen corresponding path program 1 times [2025-04-30 10:36:48,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:48,591 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867989345] [2025-04-30 10:36:48,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:48,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-30 10:36:48,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-30 10:36:48,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:48,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:48,759 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 10:36:48,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:48,760 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867989345] [2025-04-30 10:36:48,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867989345] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:48,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:48,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:48,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945403393] [2025-04-30 10:36:48,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:48,762 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:48,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:48,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:48,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:48,763 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2025-04-30 10:36:48,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 10:36:48,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:48,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2025-04-30 10:36:48,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:49,345 INFO L116 PetriNetUnfolderBase]: 2893/6063 cut-off events. [2025-04-30 10:36:49,345 INFO L117 PetriNetUnfolderBase]: For 1450/1558 co-relation queries the response was YES. [2025-04-30 10:36:49,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12927 conditions, 6063 events. 2893/6063 cut-off events. For 1450/1558 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 44151 event pairs, 781 based on Foata normal form. 220/6270 useless extension candidates. Maximal degree in co-relation 8399. Up to 3317 conditions per place. [2025-04-30 10:36:49,369 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 101 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2025-04-30 10:36:49,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 142 transitions, 675 flow [2025-04-30 10:36:49,369 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:36:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:36:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2025-04-30 10:36:49,371 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5904255319148937 [2025-04-30 10:36:49,372 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 286 flow. Second operand 4 states and 222 transitions. [2025-04-30 10:36:49,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 142 transitions, 675 flow [2025-04-30 10:36:49,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 142 transitions, 675 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:36:49,390 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 322 flow [2025-04-30 10:36:49,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2025-04-30 10:36:49,390 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2025-04-30 10:36:49,390 INFO L485 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 322 flow [2025-04-30 10:36:49,391 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 10:36:49,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:49,391 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:49,391 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:36:49,392 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:49,392 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:49,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2007176012, now seen corresponding path program 1 times [2025-04-30 10:36:49,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:49,393 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117777482] [2025-04-30 10:36:49,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:49,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:49,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-30 10:36:49,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-30 10:36:49,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:49,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:49,553 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 10:36:49,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:49,554 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117777482] [2025-04-30 10:36:49,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117777482] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:49,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:49,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:36:49,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902313830] [2025-04-30 10:36:49,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:49,554 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:36:49,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:49,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:36:49,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:36:49,561 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2025-04-30 10:36:49,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 10:36:49,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:49,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2025-04-30 10:36:49,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:50,084 INFO L116 PetriNetUnfolderBase]: 3323/6429 cut-off events. [2025-04-30 10:36:50,084 INFO L117 PetriNetUnfolderBase]: For 2381/2381 co-relation queries the response was YES. [2025-04-30 10:36:50,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15207 conditions, 6429 events. 3323/6429 cut-off events. For 2381/2381 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 44354 event pairs, 1615 based on Foata normal form. 100/6515 useless extension candidates. Maximal degree in co-relation 9766. Up to 3061 conditions per place. [2025-04-30 10:36:50,114 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 113 selfloop transitions, 32 changer transitions 0/171 dead transitions. [2025-04-30 10:36:50,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 171 transitions, 865 flow [2025-04-30 10:36:50,114 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:36:50,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:36:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 297 transitions. [2025-04-30 10:36:50,116 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.526595744680851 [2025-04-30 10:36:50,116 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 322 flow. Second operand 6 states and 297 transitions. [2025-04-30 10:36:50,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 171 transitions, 865 flow [2025-04-30 10:36:50,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 171 transitions, 864 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:36:50,128 INFO L231 Difference]: Finished difference. Result has 100 places, 110 transitions, 526 flow [2025-04-30 10:36:50,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=100, PETRI_TRANSITIONS=110} [2025-04-30 10:36:50,129 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2025-04-30 10:36:50,129 INFO L485 AbstractCegarLoop]: Abstraction has has 100 places, 110 transitions, 526 flow [2025-04-30 10:36:50,129 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 10:36:50,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:50,130 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] [2025-04-30 10:36:50,130 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:36:50,130 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:50,130 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:50,131 INFO L85 PathProgramCache]: Analyzing trace with hash 397928239, now seen corresponding path program 1 times [2025-04-30 10:36:50,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:50,131 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234739301] [2025-04-30 10:36:50,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:50,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:50,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-30 10:36:50,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-30 10:36:50,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:50,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:50,217 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 10:36:50,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:50,218 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234739301] [2025-04-30 10:36:50,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234739301] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:50,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:50,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:50,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563980303] [2025-04-30 10:36:50,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:50,218 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:50,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:50,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:50,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:50,224 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2025-04-30 10:36:50,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 110 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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 10:36:50,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:50,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2025-04-30 10:36:50,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:50,736 INFO L116 PetriNetUnfolderBase]: 3359/6476 cut-off events. [2025-04-30 10:36:50,736 INFO L117 PetriNetUnfolderBase]: For 6240/6240 co-relation queries the response was YES. [2025-04-30 10:36:50,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17293 conditions, 6476 events. 3359/6476 cut-off events. For 6240/6240 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 45013 event pairs, 834 based on Foata normal form. 44/6512 useless extension candidates. Maximal degree in co-relation 9821. Up to 3763 conditions per place. [2025-04-30 10:36:50,766 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 125 selfloop transitions, 48 changer transitions 0/199 dead transitions. [2025-04-30 10:36:50,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 199 transitions, 1337 flow [2025-04-30 10:36:50,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:36:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:36:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 259 transitions. [2025-04-30 10:36:50,767 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.551063829787234 [2025-04-30 10:36:50,767 INFO L175 Difference]: Start difference. First operand has 100 places, 110 transitions, 526 flow. Second operand 5 states and 259 transitions. [2025-04-30 10:36:50,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 199 transitions, 1337 flow [2025-04-30 10:36:50,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 199 transitions, 1299 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:50,781 INFO L231 Difference]: Finished difference. Result has 106 places, 132 transitions, 877 flow [2025-04-30 10:36:50,782 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=877, PETRI_PLACES=106, PETRI_TRANSITIONS=132} [2025-04-30 10:36:50,782 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2025-04-30 10:36:50,782 INFO L485 AbstractCegarLoop]: Abstraction has has 106 places, 132 transitions, 877 flow [2025-04-30 10:36:50,782 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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 10:36:50,782 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:50,782 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:50,782 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:36:50,783 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:50,783 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1707016101, now seen corresponding path program 1 times [2025-04-30 10:36:50,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:50,783 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837424762] [2025-04-30 10:36:50,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:50,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:50,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-30 10:36:50,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-30 10:36:50,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:50,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:50,892 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 10:36:50,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:50,892 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837424762] [2025-04-30 10:36:50,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837424762] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:50,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:50,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:50,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484528279] [2025-04-30 10:36:50,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:50,893 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:50,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:50,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:50,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:50,893 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2025-04-30 10:36:50,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 132 transitions, 877 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 10:36:50,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:50,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2025-04-30 10:36:50,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:51,289 INFO L116 PetriNetUnfolderBase]: 1798/3969 cut-off events. [2025-04-30 10:36:51,290 INFO L117 PetriNetUnfolderBase]: For 4502/4546 co-relation queries the response was YES. [2025-04-30 10:36:51,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11606 conditions, 3969 events. 1798/3969 cut-off events. For 4502/4546 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 27435 event pairs, 577 based on Foata normal form. 407/4307 useless extension candidates. Maximal degree in co-relation 8461. Up to 1812 conditions per place. [2025-04-30 10:36:51,311 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 96 selfloop transitions, 21 changer transitions 0/164 dead transitions. [2025-04-30 10:36:51,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 164 transitions, 1234 flow [2025-04-30 10:36:51,313 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:36:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:36:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 220 transitions. [2025-04-30 10:36:51,314 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5851063829787234 [2025-04-30 10:36:51,314 INFO L175 Difference]: Start difference. First operand has 106 places, 132 transitions, 877 flow. Second operand 4 states and 220 transitions. [2025-04-30 10:36:51,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 164 transitions, 1234 flow [2025-04-30 10:36:51,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 164 transitions, 1197 flow, removed 3 selfloop flow, removed 1 redundant places. [2025-04-30 10:36:51,338 INFO L231 Difference]: Finished difference. Result has 109 places, 137 transitions, 886 flow [2025-04-30 10:36:51,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=886, PETRI_PLACES=109, PETRI_TRANSITIONS=137} [2025-04-30 10:36:51,338 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2025-04-30 10:36:51,338 INFO L485 AbstractCegarLoop]: Abstraction has has 109 places, 137 transitions, 886 flow [2025-04-30 10:36:51,339 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 10:36:51,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:51,339 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:51,339 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:36:51,339 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:51,340 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1088780335, now seen corresponding path program 1 times [2025-04-30 10:36:51,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:51,340 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717649636] [2025-04-30 10:36:51,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:51,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:51,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-30 10:36:51,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-30 10:36:51,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:51,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:51,620 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 10:36:51,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:51,620 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717649636] [2025-04-30 10:36:51,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717649636] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:51,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:51,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:36:51,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766979278] [2025-04-30 10:36:51,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:51,621 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:36:51,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:51,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:36:51,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:36:51,622 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2025-04-30 10:36:51,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 137 transitions, 886 flow. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 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 10:36:51,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:51,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2025-04-30 10:36:51,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:51,888 INFO L116 PetriNetUnfolderBase]: 1265/3035 cut-off events. [2025-04-30 10:36:51,889 INFO L117 PetriNetUnfolderBase]: For 3833/3854 co-relation queries the response was YES. [2025-04-30 10:36:51,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9597 conditions, 3035 events. 1265/3035 cut-off events. For 3833/3854 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 19612 event pairs, 326 based on Foata normal form. 86/3113 useless extension candidates. Maximal degree in co-relation 6872. Up to 2164 conditions per place. [2025-04-30 10:36:51,899 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 83 selfloop transitions, 8 changer transitions 0/127 dead transitions. [2025-04-30 10:36:51,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 127 transitions, 953 flow [2025-04-30 10:36:51,900 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:36:51,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:36:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2025-04-30 10:36:51,900 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5026595744680851 [2025-04-30 10:36:51,900 INFO L175 Difference]: Start difference. First operand has 109 places, 137 transitions, 886 flow. Second operand 4 states and 189 transitions. [2025-04-30 10:36:51,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 127 transitions, 953 flow [2025-04-30 10:36:51,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 828 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-04-30 10:36:51,908 INFO L231 Difference]: Finished difference. Result has 96 places, 112 transitions, 609 flow [2025-04-30 10:36:51,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=96, PETRI_TRANSITIONS=112} [2025-04-30 10:36:51,908 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2025-04-30 10:36:51,908 INFO L485 AbstractCegarLoop]: Abstraction has has 96 places, 112 transitions, 609 flow [2025-04-30 10:36:51,908 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 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 10:36:51,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:51,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:51,909 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:36:51,909 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:51,909 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:51,909 INFO L85 PathProgramCache]: Analyzing trace with hash -219360816, now seen corresponding path program 1 times [2025-04-30 10:36:51,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:51,909 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234124069] [2025-04-30 10:36:51,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:51,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:51,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-04-30 10:36:51,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-30 10:36:51,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:51,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:52,049 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 10:36:52,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:52,050 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234124069] [2025-04-30 10:36:52,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234124069] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:52,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:52,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:36:52,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840225139] [2025-04-30 10:36:52,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:52,050 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:36:52,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:52,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:36:52,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:36:52,050 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2025-04-30 10:36:52,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 112 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 6 states have internal predecessors, (214), 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 10:36:52,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:52,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2025-04-30 10:36:52,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:52,255 INFO L116 PetriNetUnfolderBase]: 808/2035 cut-off events. [2025-04-30 10:36:52,255 INFO L117 PetriNetUnfolderBase]: For 2016/2016 co-relation queries the response was YES. [2025-04-30 10:36:52,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5894 conditions, 2035 events. 808/2035 cut-off events. For 2016/2016 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11948 event pairs, 294 based on Foata normal form. 56/2085 useless extension candidates. Maximal degree in co-relation 4471. Up to 1095 conditions per place. [2025-04-30 10:36:52,263 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 99 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2025-04-30 10:36:52,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 142 transitions, 999 flow [2025-04-30 10:36:52,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:36:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:36:52,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2025-04-30 10:36:52,265 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.526595744680851 [2025-04-30 10:36:52,265 INFO L175 Difference]: Start difference. First operand has 96 places, 112 transitions, 609 flow. Second operand 4 states and 198 transitions. [2025-04-30 10:36:52,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 142 transitions, 999 flow [2025-04-30 10:36:52,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 142 transitions, 954 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-04-30 10:36:52,270 INFO L231 Difference]: Finished difference. Result has 95 places, 109 transitions, 577 flow [2025-04-30 10:36:52,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=577, PETRI_PLACES=95, PETRI_TRANSITIONS=109} [2025-04-30 10:36:52,271 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2025-04-30 10:36:52,271 INFO L485 AbstractCegarLoop]: Abstraction has has 95 places, 109 transitions, 577 flow [2025-04-30 10:36:52,271 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 6 states have internal predecessors, (214), 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 10:36:52,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:52,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:52,271 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-30 10:36:52,272 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:52,272 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1949243083, now seen corresponding path program 1 times [2025-04-30 10:36:52,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:52,272 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185108760] [2025-04-30 10:36:52,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:52,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:52,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-04-30 10:36:52,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-04-30 10:36:52,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:52,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:52,365 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 10:36:52,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:52,365 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185108760] [2025-04-30 10:36:52,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185108760] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:52,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:52,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:36:52,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915285134] [2025-04-30 10:36:52,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:52,365 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:36:52,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:52,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:36:52,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:36:52,368 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2025-04-30 10:36:52,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 109 transitions, 577 flow. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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 10:36:52,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:52,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2025-04-30 10:36:52,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:52,594 INFO L116 PetriNetUnfolderBase]: 875/2032 cut-off events. [2025-04-30 10:36:52,595 INFO L117 PetriNetUnfolderBase]: For 1649/1649 co-relation queries the response was YES. [2025-04-30 10:36:52,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 2032 events. 875/2032 cut-off events. For 1649/1649 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11471 event pairs, 513 based on Foata normal form. 12/2033 useless extension candidates. Maximal degree in co-relation 3107. Up to 1275 conditions per place. [2025-04-30 10:36:52,602 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 89 selfloop transitions, 43 changer transitions 0/150 dead transitions. [2025-04-30 10:36:52,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 150 transitions, 1059 flow [2025-04-30 10:36:52,602 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:36:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:36:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 251 transitions. [2025-04-30 10:36:52,603 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4450354609929078 [2025-04-30 10:36:52,603 INFO L175 Difference]: Start difference. First operand has 95 places, 109 transitions, 577 flow. Second operand 6 states and 251 transitions. [2025-04-30 10:36:52,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 150 transitions, 1059 flow [2025-04-30 10:36:52,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 150 transitions, 1033 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:36:52,607 INFO L231 Difference]: Finished difference. Result has 94 places, 115 transitions, 696 flow [2025-04-30 10:36:52,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=696, PETRI_PLACES=94, PETRI_TRANSITIONS=115} [2025-04-30 10:36:52,608 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2025-04-30 10:36:52,608 INFO L485 AbstractCegarLoop]: Abstraction has has 94 places, 115 transitions, 696 flow [2025-04-30 10:36:52,608 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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 10:36:52,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:52,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:52,608 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-30 10:36:52,608 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-04-30 10:36:52,609 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:52,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2065631028, now seen corresponding path program 1 times [2025-04-30 10:36:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:52,609 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524656657] [2025-04-30 10:36:52,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:52,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:52,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-04-30 10:36:52,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-04-30 10:36:52,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:52,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:52,666 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 10:36:52,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:52,667 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524656657] [2025-04-30 10:36:52,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524656657] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:52,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:52,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:36:52,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160667024] [2025-04-30 10:36:52,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:52,667 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:52,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:52,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:52,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:52,669 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2025-04-30 10:36:52,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 115 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 10:36:52,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:52,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2025-04-30 10:36:52,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:52,789 INFO L116 PetriNetUnfolderBase]: 800/1946 cut-off events. [2025-04-30 10:36:52,789 INFO L117 PetriNetUnfolderBase]: For 1779/1779 co-relation queries the response was YES. [2025-04-30 10:36:52,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5895 conditions, 1946 events. 800/1946 cut-off events. For 1779/1779 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11180 event pairs, 670 based on Foata normal form. 1/1931 useless extension candidates. Maximal degree in co-relation 988. Up to 1659 conditions per place. [2025-04-30 10:36:52,794 INFO L140 encePairwiseOnDemand]: 92/94 looper letters, 0 selfloop transitions, 0 changer transitions 114/114 dead transitions. [2025-04-30 10:36:52,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 114 transitions, 848 flow [2025-04-30 10:36:52,794 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2025-04-30 10:36:52,794 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4929078014184397 [2025-04-30 10:36:52,794 INFO L175 Difference]: Start difference. First operand has 94 places, 115 transitions, 696 flow. Second operand 3 states and 139 transitions. [2025-04-30 10:36:52,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 114 transitions, 848 flow [2025-04-30 10:36:52,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 114 transitions, 847 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:36:52,798 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2025-04-30 10:36:52,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2025-04-30 10:36:52,799 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2025-04-30 10:36:52,799 INFO L485 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2025-04-30 10:36:52,799 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 10:36:52,801 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2025-04-30 10:36:52,801 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2025-04-30 10:36:52,801 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2025-04-30 10:36:52,801 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 7 remaining) [2025-04-30 10:36:52,801 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 7 remaining) [2025-04-30 10:36:52,801 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2025-04-30 10:36:52,801 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2025-04-30 10:36:52,802 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-30 10:36:52,802 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:52,804 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:36:52,804 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:36:52,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:36:52 BasicIcfg [2025-04-30 10:36:52,807 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:36:52,808 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:36:52,808 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:36:52,808 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:36:52,808 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:47" (3/4) ... [2025-04-30 10:36:52,810 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:36:52,812 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2025-04-30 10:36:52,812 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:36:52,814 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2025-04-30 10:36:52,814 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-04-30 10:36:52,814 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:36:52,815 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:36:52,864 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:36:52,865 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:36:52,865 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:36:52,865 INFO L158 Benchmark]: Toolchain (without parser) took 6825.13ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 121.2MB in the beginning and 268.3MB in the end (delta: -147.1MB). Peak memory consumption was 184.5MB. Max. memory is 16.1GB. [2025-04-30 10:36:52,865 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 118.6MB in the beginning and 118.4MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:52,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.46ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 98.0MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:36:52,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.18ms. Allocated memory is still 167.8MB. Free memory was 98.0MB in the beginning and 95.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:52,866 INFO L158 Benchmark]: Boogie Preprocessor took 33.15ms. Allocated memory is still 167.8MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:52,866 INFO L158 Benchmark]: RCFGBuilder took 544.35ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 50.3MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-04-30 10:36:52,866 INFO L158 Benchmark]: TraceAbstraction took 5705.06ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 49.7MB in the beginning and 272.5MB in the end (delta: -222.8MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. [2025-04-30 10:36:52,866 INFO L158 Benchmark]: Witness Printer took 56.80ms. Allocated memory is still 503.3MB. Free memory was 272.5MB in the beginning and 268.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:52,868 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 118.6MB in the beginning and 118.4MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.46ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 98.0MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.18ms. Allocated memory is still 167.8MB. Free memory was 98.0MB in the beginning and 95.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.15ms. Allocated memory is still 167.8MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 544.35ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 50.3MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5705.06ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 49.7MB in the beginning and 272.5MB in the end (delta: -222.8MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. * Witness Printer took 56.80ms. Allocated memory is still 503.3MB. Free memory was 272.5MB in the beginning and 268.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 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: 707]: 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, 117 locations, 124 edges, 7 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: 5.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 542 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 529 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1394 IncrementalHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 15 mSDtfsCounter, 1394 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=5, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 1248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:36:52,886 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