./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.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 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:56:09,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:56:09,717 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:56:09,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:56:09,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:56:09,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:56:09,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:56:09,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:56:09,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:56:09,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:56:09,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:56:09,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:56:09,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:56:09,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:56:09,753 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:56:09,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:56:09,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:56:09,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:56:09,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:56:09,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:56:09,755 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:56:09,755 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:56:09,756 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:56:09,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:56:09,757 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:56:09,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:56:09,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:56:09,757 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:56:09,758 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:56:09,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:56:09,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:56:09,758 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:56:09,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:56:09,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:56:09,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:56:09,760 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:56:09,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:56:09,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:56:09,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:56:09,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:56:09,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:56:09,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:56:09,764 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2024-11-19 09:56:10,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:56:10,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:56:10,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:56:10,044 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:56:10,045 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:56:10,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-11-19 09:56:11,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:56:11,775 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:56:11,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-11-19 09:56:11,794 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e87a22ae1/97ee0c5de47e4b0c97903915ef194703/FLAG692e41212 [2024-11-19 09:56:11,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e87a22ae1/97ee0c5de47e4b0c97903915ef194703 [2024-11-19 09:56:11,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:56:11,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:56:11,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:56:11,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:56:11,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:56:11,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:56:11" (1/1) ... [2024-11-19 09:56:11,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3ace79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:11, skipping insertion in model container [2024-11-19 09:56:11,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:56:11" (1/1) ... [2024-11-19 09:56:11,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:56:12,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:56:12,327 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:56:12,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:56:12,430 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:56:12,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12 WrapperNode [2024-11-19 09:56:12,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:56:12,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:56:12,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:56:12,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:56:12,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,498 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2024-11-19 09:56:12,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:56:12,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:56:12,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:56:12,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:56:12,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,529 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-11-19 09:56:12,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:56:12,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:56:12,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:56:12,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:56:12,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (1/1) ... [2024-11-19 09:56:12,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:56:12,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:12,610 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) [2024-11-19 09:56:12,635 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 [2024-11-19 09:56:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 09:56:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 09:56:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 09:56:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 09:56:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:56:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:56:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:56:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:56:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 09:56:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:56:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:56:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:56:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 09:56:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:56:12,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:56:12,728 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:56:12,919 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:56:12,922 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:56:13,317 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:56:13,317 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:56:14,387 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:56:14,387 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 09:56:14,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:56:14 BoogieIcfgContainer [2024-11-19 09:56:14,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:56:14,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:56:14,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:56:14,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:56:14,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:56:11" (1/3) ... [2024-11-19 09:56:14,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6118b120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:56:14, skipping insertion in model container [2024-11-19 09:56:14,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:56:12" (2/3) ... [2024-11-19 09:56:14,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6118b120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:56:14, skipping insertion in model container [2024-11-19 09:56:14,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:56:14" (3/3) ... [2024-11-19 09:56:14,397 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2024-11-19 09:56:14,413 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:56:14,413 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:56:14,413 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:56:14,471 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 09:56:14,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2024-11-19 09:56:14,556 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-11-19 09:56:14,556 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:56:14,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2024-11-19 09:56:14,562 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2024-11-19 09:56:14,566 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2024-11-19 09:56:14,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:56:14,587 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35e27650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:56:14,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-19 09:56:14,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:56:14,639 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2024-11-19 09:56:14,639 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:56:14,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:14,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:14,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:14,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:14,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1079441311, now seen corresponding path program 1 times [2024-11-19 09:56:14,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:14,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063888799] [2024-11-19 09:56:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:56:14,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:15,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:15,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063888799] [2024-11-19 09:56:15,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063888799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:56:15,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:56:15,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:56:15,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898769464] [2024-11-19 09:56:15,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:56:15,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:56:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:15,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:56:15,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:56:15,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-19 09:56:15,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:15,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:15,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-19 09:56:15,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:15,905 INFO L124 PetriNetUnfolderBase]: 441/787 cut-off events. [2024-11-19 09:56:15,905 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-19 09:56:15,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 787 events. 441/787 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3703 event pairs, 173 based on Foata normal form. 20/778 useless extension candidates. Maximal degree in co-relation 1442. Up to 419 conditions per place. [2024-11-19 09:56:15,917 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-11-19 09:56:15,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 205 flow [2024-11-19 09:56:15,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:56:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:56:15,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-19 09:56:15,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-19 09:56:15,933 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 92 flow. Second operand 3 states and 89 transitions. [2024-11-19 09:56:15,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 205 flow [2024-11-19 09:56:15,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:56:15,942 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 90 flow [2024-11-19 09:56:15,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2024-11-19 09:56:15,950 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-11-19 09:56:15,950 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 90 flow [2024-11-19 09:56:15,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:15,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:15,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:15,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:56:15,952 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:15,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:15,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1219930273, now seen corresponding path program 1 times [2024-11-19 09:56:15,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:15,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582849034] [2024-11-19 09:56:15,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:56:15,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:16,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:16,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582849034] [2024-11-19 09:56:16,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582849034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:56:16,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:56:16,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:56:16,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053374761] [2024-11-19 09:56:16,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:56:16,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:56:16,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:16,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:56:16,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:56:16,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-19 09:56:16,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:16,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:16,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-19 09:56:16,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:16,575 INFO L124 PetriNetUnfolderBase]: 742/1327 cut-off events. [2024-11-19 09:56:16,575 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-19 09:56:16,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 1327 events. 742/1327 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6781 event pairs, 300 based on Foata normal form. 29/1324 useless extension candidates. Maximal degree in co-relation 964. Up to 697 conditions per place. [2024-11-19 09:56:16,584 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 40 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2024-11-19 09:56:16,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 219 flow [2024-11-19 09:56:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:56:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:56:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-19 09:56:16,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-19 09:56:16,586 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 90 flow. Second operand 3 states and 86 transitions. [2024-11-19 09:56:16,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 219 flow [2024-11-19 09:56:16,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:16,588 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 100 flow [2024-11-19 09:56:16,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2024-11-19 09:56:16,590 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2024-11-19 09:56:16,590 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 100 flow [2024-11-19 09:56:16,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:16,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:16,591 INFO L204 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] [2024-11-19 09:56:16,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:56:16,593 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:16,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:16,594 INFO L85 PathProgramCache]: Analyzing trace with hash 737018549, now seen corresponding path program 1 times [2024-11-19 09:56:16,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:16,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221356376] [2024-11-19 09:56:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:56:16,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:17,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:17,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221356376] [2024-11-19 09:56:17,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221356376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:56:17,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:56:17,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:56:17,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733837635] [2024-11-19 09:56:17,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:56:17,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:56:17,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:17,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:56:17,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:56:17,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-19 09:56:17,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:17,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:17,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-19 09:56:17,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:17,218 INFO L124 PetriNetUnfolderBase]: 428/900 cut-off events. [2024-11-19 09:56:17,218 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-11-19 09:56:17,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 900 events. 428/900 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4334 event pairs, 182 based on Foata normal form. 64/958 useless extension candidates. Maximal degree in co-relation 629. Up to 373 conditions per place. [2024-11-19 09:56:17,224 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2024-11-19 09:56:17,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 220 flow [2024-11-19 09:56:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:56:17,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:56:17,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-11-19 09:56:17,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-11-19 09:56:17,226 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 100 flow. Second operand 3 states and 83 transitions. [2024-11-19 09:56:17,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 220 flow [2024-11-19 09:56:17,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:17,229 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 114 flow [2024-11-19 09:56:17,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2024-11-19 09:56:17,230 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-11-19 09:56:17,230 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 114 flow [2024-11-19 09:56:17,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:17,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:17,231 INFO L204 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] [2024-11-19 09:56:17,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:56:17,231 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:17,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:17,232 INFO L85 PathProgramCache]: Analyzing trace with hash 419044627, now seen corresponding path program 2 times [2024-11-19 09:56:17,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:17,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413356936] [2024-11-19 09:56:17,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:56:17,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:17,533 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:56:17,533 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:56:17,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:17,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413356936] [2024-11-19 09:56:17,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413356936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:56:17,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:56:17,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:56:17,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013951456] [2024-11-19 09:56:17,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:56:17,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:56:17,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:17,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:56:17,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:56:17,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-19 09:56:17,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:17,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:17,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-19 09:56:17,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:17,744 INFO L124 PetriNetUnfolderBase]: 464/947 cut-off events. [2024-11-19 09:56:17,744 INFO L125 PetriNetUnfolderBase]: For 311/311 co-relation queries the response was YES. [2024-11-19 09:56:17,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 947 events. 464/947 cut-off events. For 311/311 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4677 event pairs, 283 based on Foata normal form. 1/937 useless extension candidates. Maximal degree in co-relation 805. Up to 697 conditions per place. [2024-11-19 09:56:17,751 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 36 selfloop transitions, 1 changer transitions 0/49 dead transitions. [2024-11-19 09:56:17,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 225 flow [2024-11-19 09:56:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:56:17,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:56:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-19 09:56:17,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2024-11-19 09:56:17,755 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 114 flow. Second operand 3 states and 77 transitions. [2024-11-19 09:56:17,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 225 flow [2024-11-19 09:56:17,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 213 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:17,762 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 106 flow [2024-11-19 09:56:17,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2024-11-19 09:56:17,764 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2024-11-19 09:56:17,764 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 106 flow [2024-11-19 09:56:17,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:17,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:17,765 INFO L204 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] [2024-11-19 09:56:17,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:56:17,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:17,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:17,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1502055002, now seen corresponding path program 1 times [2024-11-19 09:56:17,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:17,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139897724] [2024-11-19 09:56:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:56:17,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:18,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:18,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:18,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139897724] [2024-11-19 09:56:18,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139897724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:18,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418017961] [2024-11-19 09:56:18,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:56:18,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:18,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:18,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:18,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:56:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:18,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 09:56:18,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:56:18,782 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:56:18,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418017961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:56:18,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:56:18,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-19 09:56:18,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887051977] [2024-11-19 09:56:18,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:56:18,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:56:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:18,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:56:18,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:56:18,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-19 09:56:18,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:18,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:18,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-19 09:56:18,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:18,892 INFO L124 PetriNetUnfolderBase]: 464/946 cut-off events. [2024-11-19 09:56:18,892 INFO L125 PetriNetUnfolderBase]: For 213/213 co-relation queries the response was YES. [2024-11-19 09:56:18,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2144 conditions, 946 events. 464/946 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4654 event pairs, 324 based on Foata normal form. 1/936 useless extension candidates. Maximal degree in co-relation 1891. Up to 778 conditions per place. [2024-11-19 09:56:18,898 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 25 selfloop transitions, 1 changer transitions 2/37 dead transitions. [2024-11-19 09:56:18,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 156 flow [2024-11-19 09:56:18,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:56:18,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:56:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-19 09:56:18,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-11-19 09:56:18,900 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 106 flow. Second operand 3 states and 67 transitions. [2024-11-19 09:56:18,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 156 flow [2024-11-19 09:56:18,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:18,903 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 101 flow [2024-11-19 09:56:18,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2024-11-19 09:56:18,904 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2024-11-19 09:56:18,904 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 101 flow [2024-11-19 09:56:18,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:18,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:18,904 INFO L204 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] [2024-11-19 09:56:18,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:19,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:19,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:19,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:19,106 INFO L85 PathProgramCache]: Analyzing trace with hash -555787655, now seen corresponding path program 1 times [2024-11-19 09:56:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:19,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457628740] [2024-11-19 09:56:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:56:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:19,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:19,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457628740] [2024-11-19 09:56:19,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457628740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:19,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870911965] [2024-11-19 09:56:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:56:19,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:19,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:19,473 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:19,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:56:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:19,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 09:56:19,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:20,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:20,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:20,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870911965] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:20,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:20,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 09:56:20,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194649393] [2024-11-19 09:56:20,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:20,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 09:56:20,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:20,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 09:56:20,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:56:20,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-19 09:56:20,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 101 flow. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 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) [2024-11-19 09:56:20,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:20,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-19 09:56:20,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:20,391 INFO L124 PetriNetUnfolderBase]: 1039/2001 cut-off events. [2024-11-19 09:56:20,391 INFO L125 PetriNetUnfolderBase]: For 386/386 co-relation queries the response was YES. [2024-11-19 09:56:20,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4535 conditions, 2001 events. 1039/2001 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10193 event pairs, 106 based on Foata normal form. 90/2083 useless extension candidates. Maximal degree in co-relation 4526. Up to 396 conditions per place. [2024-11-19 09:56:20,405 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 90 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-11-19 09:56:20,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 104 transitions, 503 flow [2024-11-19 09:56:20,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:56:20,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:56:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-11-19 09:56:20,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-19 09:56:20,407 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 101 flow. Second operand 6 states and 178 transitions. [2024-11-19 09:56:20,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 104 transitions, 503 flow [2024-11-19 09:56:20,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 104 transitions, 502 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:20,410 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 140 flow [2024-11-19 09:56:20,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=140, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-11-19 09:56:20,413 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-19 09:56:20,414 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 140 flow [2024-11-19 09:56:20,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 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) [2024-11-19 09:56:20,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:20,414 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:20,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 09:56:20,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 09:56:20,615 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:20,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2133967703, now seen corresponding path program 2 times [2024-11-19 09:56:20,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756283042] [2024-11-19 09:56:20,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:56:20,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:20,891 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:56:20,892 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 09:56:21,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:21,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756283042] [2024-11-19 09:56:21,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756283042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:21,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835615691] [2024-11-19 09:56:21,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:56:21,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:21,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:21,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 09:56:21,519 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:56:21,519 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:21,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 09:56:21,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 09:56:21,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:56:21,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835615691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:56:21,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:56:21,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-19 09:56:21,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260145073] [2024-11-19 09:56:21,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:56:21,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:56:21,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:21,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:56:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:56:21,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-19 09:56:21,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-19 09:56:21,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:21,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-19 09:56:21,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:21,802 INFO L124 PetriNetUnfolderBase]: 894/1788 cut-off events. [2024-11-19 09:56:21,802 INFO L125 PetriNetUnfolderBase]: For 1125/1125 co-relation queries the response was YES. [2024-11-19 09:56:21,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4465 conditions, 1788 events. 894/1788 cut-off events. For 1125/1125 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8013 event pairs, 233 based on Foata normal form. 0/1691 useless extension candidates. Maximal degree in co-relation 4453. Up to 837 conditions per place. [2024-11-19 09:56:21,811 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 47 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-11-19 09:56:21,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 59 transitions, 331 flow [2024-11-19 09:56:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:56:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:56:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-19 09:56:21,813 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2024-11-19 09:56:21,813 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 140 flow. Second operand 4 states and 97 transitions. [2024-11-19 09:56:21,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 59 transitions, 331 flow [2024-11-19 09:56:21,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 316 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:21,817 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 157 flow [2024-11-19 09:56:21,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-11-19 09:56:21,820 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 12 predicate places. [2024-11-19 09:56:21,820 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 157 flow [2024-11-19 09:56:21,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-19 09:56:21,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:21,821 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:21,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:22,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:22,024 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:22,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:22,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1262219319, now seen corresponding path program 3 times [2024-11-19 09:56:22,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:22,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143869586] [2024-11-19 09:56:22,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:56:22,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:22,247 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 09:56:22,247 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:22,365 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 09:56:22,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:22,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143869586] [2024-11-19 09:56:22,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143869586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:22,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017605084] [2024-11-19 09:56:22,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:56:22,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:22,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:22,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:22,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 09:56:23,039 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 09:56:23,040 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:23,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 09:56:23,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 09:56:23,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 09:56:23,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017605084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:23,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:23,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-11-19 09:56:23,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666599605] [2024-11-19 09:56:23,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:23,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 09:56:23,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:23,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 09:56:23,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:56:23,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-19 09:56:23,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 157 flow. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 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) [2024-11-19 09:56:23,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:23,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-19 09:56:23,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:23,624 INFO L124 PetriNetUnfolderBase]: 1852/3711 cut-off events. [2024-11-19 09:56:23,624 INFO L125 PetriNetUnfolderBase]: For 2289/2289 co-relation queries the response was YES. [2024-11-19 09:56:23,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9399 conditions, 3711 events. 1852/3711 cut-off events. For 2289/2289 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 21038 event pairs, 209 based on Foata normal form. 207/3908 useless extension candidates. Maximal degree in co-relation 9383. Up to 1072 conditions per place. [2024-11-19 09:56:23,654 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 93 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-11-19 09:56:23,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 109 transitions, 645 flow [2024-11-19 09:56:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:56:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:56:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-11-19 09:56:23,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589147286821705 [2024-11-19 09:56:23,656 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 157 flow. Second operand 6 states and 170 transitions. [2024-11-19 09:56:23,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 109 transitions, 645 flow [2024-11-19 09:56:23,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 109 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:23,662 INFO L231 Difference]: Finished difference. Result has 60 places, 43 transitions, 196 flow [2024-11-19 09:56:23,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=196, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2024-11-19 09:56:23,662 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2024-11-19 09:56:23,663 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 43 transitions, 196 flow [2024-11-19 09:56:23,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 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) [2024-11-19 09:56:23,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:23,663 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:23,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:23,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:23,864 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:23,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash 487165183, now seen corresponding path program 4 times [2024-11-19 09:56:23,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:23,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842472217] [2024-11-19 09:56:23,865 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:56:23,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:24,058 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:56:24,058 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-19 09:56:24,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842472217] [2024-11-19 09:56:24,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842472217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:24,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320918034] [2024-11-19 09:56:24,281 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:56:24,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:24,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:24,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:24,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 09:56:24,773 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:56:24,774 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:24,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 09:56:24,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 09:56:24,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 09:56:24,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320918034] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:24,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:24,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2024-11-19 09:56:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893494280] [2024-11-19 09:56:24,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:24,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:56:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:24,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:56:24,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:56:24,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-19 09:56:24,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 43 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-19 09:56:24,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:24,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-19 09:56:24,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:25,134 INFO L124 PetriNetUnfolderBase]: 544/1203 cut-off events. [2024-11-19 09:56:25,135 INFO L125 PetriNetUnfolderBase]: For 1510/1512 co-relation queries the response was YES. [2024-11-19 09:56:25,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3463 conditions, 1203 events. 544/1203 cut-off events. For 1510/1512 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4923 event pairs, 149 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 3444. Up to 528 conditions per place. [2024-11-19 09:56:25,144 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-11-19 09:56:25,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 402 flow [2024-11-19 09:56:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:56:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:56:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-19 09:56:25,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5523255813953488 [2024-11-19 09:56:25,145 INFO L175 Difference]: Start difference. First operand has 60 places, 43 transitions, 196 flow. Second operand 4 states and 95 transitions. [2024-11-19 09:56:25,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 402 flow [2024-11-19 09:56:25,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 386 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-19 09:56:25,149 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 184 flow [2024-11-19 09:56:25,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2024-11-19 09:56:25,150 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 22 predicate places. [2024-11-19 09:56:25,150 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 184 flow [2024-11-19 09:56:25,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-19 09:56:25,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:25,150 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:25,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 09:56:25,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:25,355 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:25,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:25,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1081318207, now seen corresponding path program 5 times [2024-11-19 09:56:25,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:25,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802651423] [2024-11-19 09:56:25,355 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:56:25,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:25,635 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-11-19 09:56:25,636 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:26,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802651423] [2024-11-19 09:56:26,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802651423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:26,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344989632] [2024-11-19 09:56:26,227 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:56:26,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:26,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:26,230 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:26,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 09:56:26,848 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-11-19 09:56:26,848 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:26,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 09:56:26,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:27,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:27,634 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:27,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344989632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:27,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:27,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 33 [2024-11-19 09:56:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139246364] [2024-11-19 09:56:27,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:27,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 09:56:27,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:27,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 09:56:27,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 09:56:27,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-19 09:56:27,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 184 flow. Second operand has 34 states, 34 states have (on average 17.058823529411764) internal successors, (580), 34 states have internal predecessors, (580), 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) [2024-11-19 09:56:27,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:27,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-19 09:56:27,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:29,315 INFO L124 PetriNetUnfolderBase]: 589/1255 cut-off events. [2024-11-19 09:56:29,315 INFO L125 PetriNetUnfolderBase]: For 1429/1429 co-relation queries the response was YES. [2024-11-19 09:56:29,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3578 conditions, 1255 events. 589/1255 cut-off events. For 1429/1429 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5107 event pairs, 39 based on Foata normal form. 30/1281 useless extension candidates. Maximal degree in co-relation 3557. Up to 232 conditions per place. [2024-11-19 09:56:29,321 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 130/130 dead transitions. [2024-11-19 09:56:29,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 130 transitions, 818 flow [2024-11-19 09:56:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 09:56:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 09:56:29,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 275 transitions. [2024-11-19 09:56:29,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5329457364341085 [2024-11-19 09:56:29,323 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 184 flow. Second operand 12 states and 275 transitions. [2024-11-19 09:56:29,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 130 transitions, 818 flow [2024-11-19 09:56:29,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 130 transitions, 786 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:56:29,328 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-19 09:56:29,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-19 09:56:29,329 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 26 predicate places. [2024-11-19 09:56:29,329 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-19 09:56:29,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 17.058823529411764) internal successors, (580), 34 states have internal predecessors, (580), 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) [2024-11-19 09:56:29,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-19 09:56:29,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-19 09:56:29,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-19 09:56:29,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-19 09:56:29,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:29,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:29,534 INFO L407 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1] [2024-11-19 09:56:29,538 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:56:29,538 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:56:29,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:56:29 BasicIcfg [2024-11-19 09:56:29,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:56:29,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:56:29,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:56:29,544 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:56:29,544 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:56:14" (3/4) ... [2024-11-19 09:56:29,547 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:56:29,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 09:56:29,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 09:56:29,563 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 257 nodes and edges [2024-11-19 09:56:29,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-19 09:56:29,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 09:56:29,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 09:56:29,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 09:56:29,696 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:56:29,696 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:56:29,697 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:56:29,697 INFO L158 Benchmark]: Toolchain (without parser) took 17884.78ms. Allocated memory was 157.3MB in the beginning and 908.1MB in the end (delta: 750.8MB). Free memory was 101.2MB in the beginning and 848.5MB in the end (delta: -747.3MB). Peak memory consumption was 435.5MB. Max. memory is 16.1GB. [2024-11-19 09:56:29,698 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 157.3MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:56:29,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.80ms. Allocated memory is still 157.3MB. Free memory was 100.8MB in the beginning and 70.1MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-19 09:56:29,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.46ms. Allocated memory is still 157.3MB. Free memory was 70.1MB in the beginning and 66.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:56:29,698 INFO L158 Benchmark]: Boogie Preprocessor took 60.64ms. Allocated memory is still 157.3MB. Free memory was 66.8MB in the beginning and 63.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:56:29,699 INFO L158 Benchmark]: RCFGBuilder took 1826.88ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 63.0MB in the beginning and 94.1MB in the end (delta: -31.1MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2024-11-19 09:56:29,699 INFO L158 Benchmark]: TraceAbstraction took 15152.86ms. Allocated memory was 209.7MB in the beginning and 725.6MB in the end (delta: 515.9MB). Free memory was 93.1MB in the beginning and 244.0MB in the end (delta: -150.9MB). Peak memory consumption was 364.5MB. Max. memory is 16.1GB. [2024-11-19 09:56:29,699 INFO L158 Benchmark]: Witness Printer took 153.04ms. Allocated memory was 725.6MB in the beginning and 908.1MB in the end (delta: 182.5MB). Free memory was 244.0MB in the beginning and 848.5MB in the end (delta: -604.5MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-11-19 09:56:29,701 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 157.3MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.80ms. Allocated memory is still 157.3MB. Free memory was 100.8MB in the beginning and 70.1MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.46ms. Allocated memory is still 157.3MB. Free memory was 70.1MB in the beginning and 66.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.64ms. Allocated memory is still 157.3MB. Free memory was 66.8MB in the beginning and 63.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1826.88ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 63.0MB in the beginning and 94.1MB in the end (delta: -31.1MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * TraceAbstraction took 15152.86ms. Allocated memory was 209.7MB in the beginning and 725.6MB in the end (delta: 515.9MB). Free memory was 93.1MB in the beginning and 244.0MB in the end (delta: -150.9MB). Peak memory consumption was 364.5MB. Max. memory is 16.1GB. * Witness Printer took 153.04ms. Allocated memory was 725.6MB in the beginning and 908.1MB in the end (delta: 182.5MB). Free memory was 244.0MB in the beginning and 848.5MB in the end (delta: -604.5MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 906]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.0s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 376 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 363 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3497 IncrementalHoareTripleChecker+Invalid, 3517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 3 mSDtfsCounter, 3497 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 532 GetRequests, 471 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=8, InterpolantAutomatonStates: 47, 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: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 650 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 840 ConstructedInterpolants, 0 QuantifiedInterpolants, 3054 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2856 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 351/760 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 09:56:29,732 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