./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-theta/wsc.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-theta/wsc.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 cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:58:11,256 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:58:11,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:58:11,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:58:11,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:58:11,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:58:11,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:58:11,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:58:11,354 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:58:11,354 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:58:11,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:58:11,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:58:11,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:58:11,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:58:11,357 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:58:11,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:58:11,357 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:58:11,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:58:11,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:58:11,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:58:11,362 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:58:11,362 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:58:11,363 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:58:11,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:58:11,363 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:58:11,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:58:11,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:58:11,363 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:58:11,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:58:11,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:58:11,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:58:11,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:58:11,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:58:11,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:58:11,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:58:11,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:58:11,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:58:11,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:58:11,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:58:11,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:58:11,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:58:11,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:58:11,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 [2024-11-19 09:58:11,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:58:11,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:58:11,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:58:11,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:58:11,578 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:58:11,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/wsc.i [2024-11-19 09:58:12,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:58:12,971 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:58:12,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/wsc.i [2024-11-19 09:58:12,986 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75f5defc/6a49fa6edd654491a0e94cf46ae587f4/FLAG7aa079aa0 [2024-11-19 09:58:13,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75f5defc/6a49fa6edd654491a0e94cf46ae587f4 [2024-11-19 09:58:13,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:58:13,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:58:13,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:58:13,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:58:13,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:58:13,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63de212f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13, skipping insertion in model container [2024-11-19 09:58:13,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:58:13,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:58:13,338 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:58:13,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:58:13,421 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:58:13,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13 WrapperNode [2024-11-19 09:58:13,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:58:13,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:58:13,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:58:13,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:58:13,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,456 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 124 [2024-11-19 09:58:13,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:58:13,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:58:13,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:58:13,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:58:13,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,482 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-19 09:58:13,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:58:13,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:58:13,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:58:13,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:58:13,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (1/1) ... [2024-11-19 09:58:13,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:58:13,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:13,532 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 09:58:13,535 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 09:58:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:58:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure f0 [2024-11-19 09:58:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure f0 [2024-11-19 09:58:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-19 09:58:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-19 09:58:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-19 09:58:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-19 09:58:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure f3 [2024-11-19 09:58:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure f3 [2024-11-19 09:58:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure f4 [2024-11-19 09:58:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure f4 [2024-11-19 09:58:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure f5 [2024-11-19 09:58:13,574 INFO L138 BoogieDeclarations]: Found implementation of procedure f5 [2024-11-19 09:58:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:58:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:58:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:58:13,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:58:13,576 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 09:58:13,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:58:13,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:58:13,838 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:58:13,838 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:58:13,969 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:58:13,969 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:58:13,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:58:13 BoogieIcfgContainer [2024-11-19 09:58:13,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:58:13,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:58:13,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:58:13,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:58:13,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:58:13" (1/3) ... [2024-11-19 09:58:13,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d62ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:58:13, skipping insertion in model container [2024-11-19 09:58:13,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:58:13" (2/3) ... [2024-11-19 09:58:13,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d62ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:58:13, skipping insertion in model container [2024-11-19 09:58:13,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:58:13" (3/3) ... [2024-11-19 09:58:13,977 INFO L112 eAbstractionObserver]: Analyzing ICFG wsc.i [2024-11-19 09:58:13,990 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:58:13,991 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:58:13,991 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:58:14,037 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-19 09:58:14,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 55 transitions, 152 flow [2024-11-19 09:58:14,102 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2024-11-19 09:58:14,102 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 09:58:14,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 49 events. 1/49 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-19 09:58:14,105 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 55 transitions, 152 flow [2024-11-19 09:58:14,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 48 transitions, 132 flow [2024-11-19 09:58:14,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:58:14,119 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;@5e6db4dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:58:14,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-19 09:58:14,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:58:14,133 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-19 09:58:14,133 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 09:58:14,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:14,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:14,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:14,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash -304422274, now seen corresponding path program 1 times [2024-11-19 09:58:14,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:14,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751993400] [2024-11-19 09:58:14,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:14,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:14,521 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 09:58:14,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:14,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751993400] [2024-11-19 09:58:14,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751993400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:14,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:58:14,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72244145] [2024-11-19 09:58:14,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:14,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:14,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:14,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:14,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:14,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:14,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:14,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:14,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:14,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:15,343 INFO L124 PetriNetUnfolderBase]: 7314/10489 cut-off events. [2024-11-19 09:58:15,344 INFO L125 PetriNetUnfolderBase]: For 1083/1083 co-relation queries the response was YES. [2024-11-19 09:58:15,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21078 conditions, 10489 events. 7314/10489 cut-off events. For 1083/1083 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 63874 event pairs, 5496 based on Foata normal form. 26/10498 useless extension candidates. Maximal degree in co-relation 20723. Up to 9584 conditions per place. [2024-11-19 09:58:15,454 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 39 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2024-11-19 09:58:15,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 242 flow [2024-11-19 09:58:15,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:15,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-19 09:58:15,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-19 09:58:15,466 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 132 flow. Second operand 3 states and 108 transitions. [2024-11-19 09:58:15,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 242 flow [2024-11-19 09:58:15,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 55 transitions, 210 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-19 09:58:15,482 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 125 flow [2024-11-19 09:58:15,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2024-11-19 09:58:15,486 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -12 predicate places. [2024-11-19 09:58:15,487 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 125 flow [2024-11-19 09:58:15,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:15,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:15,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:15,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:58:15,488 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:15,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:15,490 INFO L85 PathProgramCache]: Analyzing trace with hash 221358234, now seen corresponding path program 2 times [2024-11-19 09:58:15,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:15,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462555661] [2024-11-19 09:58:15,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:15,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:15,515 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:58:15,516 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:15,579 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 09:58:15,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:15,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462555661] [2024-11-19 09:58:15,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462555661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:15,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:15,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:58:15,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753994180] [2024-11-19 09:58:15,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:15,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:15,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:15,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:15,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:15,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:15,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:15,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:15,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:16,399 INFO L124 PetriNetUnfolderBase]: 7944/11705 cut-off events. [2024-11-19 09:58:16,403 INFO L125 PetriNetUnfolderBase]: For 2885/2885 co-relation queries the response was YES. [2024-11-19 09:58:16,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25982 conditions, 11705 events. 7944/11705 cut-off events. For 2885/2885 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 77346 event pairs, 2796 based on Foata normal form. 1063/12397 useless extension candidates. Maximal degree in co-relation 9483. Up to 6511 conditions per place. [2024-11-19 09:58:16,451 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 52 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2024-11-19 09:58:16,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 303 flow [2024-11-19 09:58:16,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:16,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-11-19 09:58:16,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7151515151515152 [2024-11-19 09:58:16,456 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 125 flow. Second operand 3 states and 118 transitions. [2024-11-19 09:58:16,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 303 flow [2024-11-19 09:58:16,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 70 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:58:16,458 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 164 flow [2024-11-19 09:58:16,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2024-11-19 09:58:16,460 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -9 predicate places. [2024-11-19 09:58:16,461 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 164 flow [2024-11-19 09:58:16,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:16,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:16,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:16,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:58:16,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:16,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:16,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1110663350, now seen corresponding path program 3 times [2024-11-19 09:58:16,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:16,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426797352] [2024-11-19 09:58:16,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:16,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:16,481 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 09:58:16,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:16,553 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 09:58:16,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:16,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426797352] [2024-11-19 09:58:16,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426797352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:16,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:16,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:58:16,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550614996] [2024-11-19 09:58:16,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:16,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:16,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:16,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:16,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:16,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:16,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:16,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:16,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:16,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:17,302 INFO L124 PetriNetUnfolderBase]: 9485/13618 cut-off events. [2024-11-19 09:58:17,302 INFO L125 PetriNetUnfolderBase]: For 8930/9062 co-relation queries the response was YES. [2024-11-19 09:58:17,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33807 conditions, 13618 events. 9485/13618 cut-off events. For 8930/9062 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 82403 event pairs, 5211 based on Foata normal form. 46/13526 useless extension candidates. Maximal degree in co-relation 10827. Up to 12751 conditions per place. [2024-11-19 09:58:17,362 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 42 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2024-11-19 09:58:17,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 289 flow [2024-11-19 09:58:17,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:17,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-19 09:58:17,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-19 09:58:17,364 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 164 flow. Second operand 3 states and 104 transitions. [2024-11-19 09:58:17,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 289 flow [2024-11-19 09:58:17,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 267 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-19 09:58:17,374 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 165 flow [2024-11-19 09:58:17,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2024-11-19 09:58:17,375 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -8 predicate places. [2024-11-19 09:58:17,375 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 165 flow [2024-11-19 09:58:17,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:17,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:17,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:17,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:58:17,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:17,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1806550334, now seen corresponding path program 4 times [2024-11-19 09:58:17,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:17,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754873811] [2024-11-19 09:58:17,377 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:58:17,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:17,389 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:58:17,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:17,439 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 09:58:17,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:17,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754873811] [2024-11-19 09:58:17,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754873811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:17,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:17,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:58:17,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662628170] [2024-11-19 09:58:17,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:17,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:17,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:17,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:17,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:17,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:17,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:17,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:17,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:17,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:18,472 INFO L124 PetriNetUnfolderBase]: 14887/21172 cut-off events. [2024-11-19 09:58:18,472 INFO L125 PetriNetUnfolderBase]: For 10151/10483 co-relation queries the response was YES. [2024-11-19 09:58:18,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51399 conditions, 21172 events. 14887/21172 cut-off events. For 10151/10483 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 138505 event pairs, 6686 based on Foata normal form. 832/21391 useless extension candidates. Maximal degree in co-relation 21714. Up to 11003 conditions per place. [2024-11-19 09:58:18,568 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 55 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-11-19 09:58:18,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 354 flow [2024-11-19 09:58:18,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:18,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:18,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-19 09:58:18,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-19 09:58:18,570 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 165 flow. Second operand 3 states and 114 transitions. [2024-11-19 09:58:18,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 354 flow [2024-11-19 09:58:18,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 75 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:58:18,572 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 174 flow [2024-11-19 09:58:18,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-11-19 09:58:18,573 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -6 predicate places. [2024-11-19 09:58:18,573 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 174 flow [2024-11-19 09:58:18,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:18,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:18,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:18,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:58:18,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:18,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:18,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2054009848, now seen corresponding path program 5 times [2024-11-19 09:58:18,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:18,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938253072] [2024-11-19 09:58:18,575 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:58:18,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:18,675 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:58:18,675 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:18,718 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 09:58:18,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:18,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938253072] [2024-11-19 09:58:18,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938253072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:18,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:18,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:58:18,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951305013] [2024-11-19 09:58:18,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:18,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:18,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:18,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:18,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:18,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:18,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:18,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:18,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:18,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:19,406 INFO L124 PetriNetUnfolderBase]: 8531/13515 cut-off events. [2024-11-19 09:58:19,406 INFO L125 PetriNetUnfolderBase]: For 7055/7293 co-relation queries the response was YES. [2024-11-19 09:58:19,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32304 conditions, 13515 events. 8531/13515 cut-off events. For 7055/7293 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 97082 event pairs, 4087 based on Foata normal form. 821/14109 useless extension candidates. Maximal degree in co-relation 13690. Up to 7292 conditions per place. [2024-11-19 09:58:19,448 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 49 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-11-19 09:58:19,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 313 flow [2024-11-19 09:58:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-11-19 09:58:19,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-11-19 09:58:19,449 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 174 flow. Second operand 3 states and 113 transitions. [2024-11-19 09:58:19,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 313 flow [2024-11-19 09:58:19,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 68 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:58:19,459 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 162 flow [2024-11-19 09:58:19,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2024-11-19 09:58:19,460 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -5 predicate places. [2024-11-19 09:58:19,460 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 162 flow [2024-11-19 09:58:19,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:19,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:19,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:19,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:58:19,461 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:19,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:19,462 INFO L85 PathProgramCache]: Analyzing trace with hash -135443610, now seen corresponding path program 6 times [2024-11-19 09:58:19,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:19,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740782186] [2024-11-19 09:58:19,462 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:58:19,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:19,473 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 09:58:19,474 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:19,517 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 09:58:19,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:19,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740782186] [2024-11-19 09:58:19,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740782186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:19,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:19,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:58:19,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336685530] [2024-11-19 09:58:19,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:19,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:19,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:19,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:19,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:19,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:19,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:19,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:19,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:19,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:20,463 INFO L124 PetriNetUnfolderBase]: 14019/20919 cut-off events. [2024-11-19 09:58:20,463 INFO L125 PetriNetUnfolderBase]: For 8368/8500 co-relation queries the response was YES. [2024-11-19 09:58:20,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50289 conditions, 20919 events. 14019/20919 cut-off events. For 8368/8500 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 145183 event pairs, 8335 based on Foata normal form. 696/21003 useless extension candidates. Maximal degree in co-relation 13544. Up to 12363 conditions per place. [2024-11-19 09:58:20,530 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 49 selfloop transitions, 2 changer transitions 4/69 dead transitions. [2024-11-19 09:58:20,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 69 transitions, 324 flow [2024-11-19 09:58:20,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:20,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-11-19 09:58:20,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2024-11-19 09:58:20,532 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 162 flow. Second operand 3 states and 112 transitions. [2024-11-19 09:58:20,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 69 transitions, 324 flow [2024-11-19 09:58:20,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:58:20,541 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 152 flow [2024-11-19 09:58:20,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-11-19 09:58:20,541 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2024-11-19 09:58:20,542 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 152 flow [2024-11-19 09:58:20,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:20,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:20,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:20,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:58:20,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:20,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:20,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1079390348, now seen corresponding path program 7 times [2024-11-19 09:58:20,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:20,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782569100] [2024-11-19 09:58:20,544 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:58:20,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:20,608 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 09:58:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782569100] [2024-11-19 09:58:20,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782569100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:20,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:20,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:58:20,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165791439] [2024-11-19 09:58:20,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:20,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:20,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:20,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:20,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:20,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:20,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:20,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:20,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:20,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:21,479 INFO L124 PetriNetUnfolderBase]: 10181/15226 cut-off events. [2024-11-19 09:58:21,479 INFO L125 PetriNetUnfolderBase]: For 5601/6014 co-relation queries the response was YES. [2024-11-19 09:58:21,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37116 conditions, 15226 events. 10181/15226 cut-off events. For 5601/6014 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 100020 event pairs, 5392 based on Foata normal form. 712/15375 useless extension candidates. Maximal degree in co-relation 20401. Up to 7291 conditions per place. [2024-11-19 09:58:21,527 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 39 selfloop transitions, 1 changer transitions 3/58 dead transitions. [2024-11-19 09:58:21,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 273 flow [2024-11-19 09:58:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:21,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-19 09:58:21,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-19 09:58:21,529 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 152 flow. Second operand 3 states and 104 transitions. [2024-11-19 09:58:21,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 273 flow [2024-11-19 09:58:21,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 267 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 09:58:21,532 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 151 flow [2024-11-19 09:58:21,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-11-19 09:58:21,533 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2024-11-19 09:58:21,533 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 151 flow [2024-11-19 09:58:21,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:21,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:21,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:21,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:58:21,534 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:21,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:21,534 INFO L85 PathProgramCache]: Analyzing trace with hash -223997236, now seen corresponding path program 8 times [2024-11-19 09:58:21,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:21,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262821979] [2024-11-19 09:58:21,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:21,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:21,546 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:58:21,546 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:21,604 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 09:58:21,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:21,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262821979] [2024-11-19 09:58:21,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262821979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:21,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:21,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:58:21,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016977124] [2024-11-19 09:58:21,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:21,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:21,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:21,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:21,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:21,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:21,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:21,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:21,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:22,367 INFO L124 PetriNetUnfolderBase]: 9649/15362 cut-off events. [2024-11-19 09:58:22,367 INFO L125 PetriNetUnfolderBase]: For 8289/8345 co-relation queries the response was YES. [2024-11-19 09:58:22,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38721 conditions, 15362 events. 9649/15362 cut-off events. For 8289/8345 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 109281 event pairs, 5646 based on Foata normal form. 25/15002 useless extension candidates. Maximal degree in co-relation 25116. Up to 13436 conditions per place. [2024-11-19 09:58:22,412 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 42 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-11-19 09:58:22,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 281 flow [2024-11-19 09:58:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-19 09:58:22,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2024-11-19 09:58:22,413 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 151 flow. Second operand 3 states and 106 transitions. [2024-11-19 09:58:22,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 281 flow [2024-11-19 09:58:22,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 59 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:58:22,452 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 167 flow [2024-11-19 09:58:22,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2024-11-19 09:58:22,453 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-11-19 09:58:22,453 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 167 flow [2024-11-19 09:58:22,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:22,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:22,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:22,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:58:22,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-19 09:58:22,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:22,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1397182554, now seen corresponding path program 9 times [2024-11-19 09:58:22,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:22,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940754435] [2024-11-19 09:58:22,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:22,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:22,471 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 09:58:22,472 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:22,499 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 09:58:22,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:22,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940754435] [2024-11-19 09:58:22,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940754435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:22,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:22,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:58:22,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362286628] [2024-11-19 09:58:22,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:22,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:22,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:22,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:22,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:22,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-19 09:58:22,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:22,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:22,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-19 09:58:22,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:23,017 INFO L124 PetriNetUnfolderBase]: 8708/13187 cut-off events. [2024-11-19 09:58:23,017 INFO L125 PetriNetUnfolderBase]: For 8084/8508 co-relation queries the response was YES. [2024-11-19 09:58:23,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34370 conditions, 13187 events. 8708/13187 cut-off events. For 8084/8508 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 86746 event pairs, 5484 based on Foata normal form. 516/13259 useless extension candidates. Maximal degree in co-relation 19538. Up to 7810 conditions per place. [2024-11-19 09:58:23,051 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-11-19 09:58:23,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 275 flow [2024-11-19 09:58:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:23,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-19 09:58:23,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6181818181818182 [2024-11-19 09:58:23,052 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 167 flow. Second operand 3 states and 102 transitions. [2024-11-19 09:58:23,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 275 flow [2024-11-19 09:58:23,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 270 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 09:58:23,056 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-11-19 09:58:23,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-11-19 09:58:23,056 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2024-11-19 09:58:23,057 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-11-19 09:58:23,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 09:58:23,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-19 09:58:23,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-19 09:58:23,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2024-11-19 09:58:23,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-19 09:58:23,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-11-19 09:58:23,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-11-19 09:58:23,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-19 09:58:23,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-19 09:58:23,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 09:58:23,060 INFO L407 BasicCegarLoop]: Path program histogram: [9] [2024-11-19 09:58:23,062 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:58:23,062 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:58:23,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:58:23 BasicIcfg [2024-11-19 09:58:23,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:58:23,066 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:58:23,066 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:58:23,066 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:58:23,067 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:58:13" (3/4) ... [2024-11-19 09:58:23,068 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:58:23,071 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f0 [2024-11-19 09:58:23,071 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-19 09:58:23,072 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-19 09:58:23,072 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f3 [2024-11-19 09:58:23,072 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f4 [2024-11-19 09:58:23,072 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f5 [2024-11-19 09:58:23,075 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2024-11-19 09:58:23,075 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-19 09:58:23,075 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-19 09:58:23,075 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 09:58:23,075 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 09:58:23,138 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:58:23,138 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:58:23,139 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:58:23,139 INFO L158 Benchmark]: Toolchain (without parser) took 10134.94ms. Allocated memory was 186.6MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 155.7MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-19 09:58:23,139 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:58:23,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.66ms. Allocated memory is still 186.6MB. Free memory was 155.7MB in the beginning and 132.6MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 09:58:23,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.14ms. Allocated memory is still 186.6MB. Free memory was 132.6MB in the beginning and 130.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:58:23,139 INFO L158 Benchmark]: Boogie Preprocessor took 46.52ms. Allocated memory is still 186.6MB. Free memory was 130.5MB in the beginning and 127.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:58:23,140 INFO L158 Benchmark]: RCFGBuilder took 464.72ms. Allocated memory is still 186.6MB. Free memory was 127.4MB in the beginning and 89.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-19 09:58:23,140 INFO L158 Benchmark]: TraceAbstraction took 9094.44ms. Allocated memory was 186.6MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 88.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-19 09:58:23,140 INFO L158 Benchmark]: Witness Printer took 72.32ms. Allocated memory is still 2.4GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:58:23,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.66ms. Allocated memory is still 186.6MB. Free memory was 155.7MB in the beginning and 132.6MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.14ms. Allocated memory is still 186.6MB. Free memory was 132.6MB in the beginning and 130.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.52ms. Allocated memory is still 186.6MB. Free memory was 130.5MB in the beginning and 127.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 464.72ms. Allocated memory is still 186.6MB. Free memory was 127.4MB in the beginning and 89.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9094.44ms. Allocated memory was 186.6MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 88.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 72.32ms. Allocated memory is still 2.4GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 788]: 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 13 procedures, 89 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 595 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 595 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=4, InterpolantAutomatonStates: 27, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 396 NumberOfCodeBlocks, 395 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 387 ConstructedInterpolants, 0 QuantifiedInterpolants, 541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 09:58:23,161 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