./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.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 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:38:14,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:38:14,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:38:14,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:38:14,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:38:14,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:38:14,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:38:14,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:38:14,495 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:38:14,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:38:14,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:38:14,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:38:14,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:38:14,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:38:14,501 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:38:14,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:38:14,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:38:14,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:38:14,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:38:14,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:38:14,503 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:38:14,503 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:38:14,503 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:38:14,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:38:14,504 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:38:14,504 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:38:14,504 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:38:14,504 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:38:14,505 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:38:14,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:38:14,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:38:14,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:38:14,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:38:14,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:38:14,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:38:14,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:38:14,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:38:14,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:38:14,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:38:14,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:38:14,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:38:14,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:38:14,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 [2024-10-14 19:38:14,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:38:14,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:38:14,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:38:14,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:38:14,857 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:38:14,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.i [2024-10-14 19:38:16,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:38:16,571 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:38:16,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.i [2024-10-14 19:38:16,604 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1210a34/d976b26cd18842ae80ce532fecef45a4/FLAGa9ed2597c [2024-10-14 19:38:16,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1210a34/d976b26cd18842ae80ce532fecef45a4 [2024-10-14 19:38:16,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:38:16,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:38:16,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:38:16,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:38:16,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:38:16,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:38:16" (1/1) ... [2024-10-14 19:38:16,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6210d3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:16, skipping insertion in model container [2024-10-14 19:38:16,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:38:16" (1/1) ... [2024-10-14 19:38:16,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:38:17,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:38:17,260 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:38:17,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:38:17,349 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:38:17,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17 WrapperNode [2024-10-14 19:38:17,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:38:17,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:38:17,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:38:17,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:38:17,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,400 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2024-10-14 19:38:17,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:38:17,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:38:17,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:38:17,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:38:17,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,442 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 19:38:17,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:38:17,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:38:17,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:38:17,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:38:17,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (1/1) ... [2024-10-14 19:38:17,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:38:17,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:38:17,500 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) [2024-10-14 19:38:17,503 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 [2024-10-14 19:38:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:38:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:38:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:38:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:38:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:38:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:38:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:38:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:38:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:38:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:38:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:38:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:38:17,553 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:38:17,747 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:38:17,749 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:38:17,896 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:38:17,896 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:38:17,987 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:38:17,987 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:38:17,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:38:17 BoogieIcfgContainer [2024-10-14 19:38:17,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:38:17,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:38:17,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:38:17,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:38:17,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:38:16" (1/3) ... [2024-10-14 19:38:17,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8c041d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:38:17, skipping insertion in model container [2024-10-14 19:38:17,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:38:17" (2/3) ... [2024-10-14 19:38:17,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8c041d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:38:17, skipping insertion in model container [2024-10-14 19:38:17,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:38:17" (3/3) ... [2024-10-14 19:38:17,998 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2024-10-14 19:38:18,017 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:38:18,018 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:38:18,018 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:38:18,064 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:38:18,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-10-14 19:38:18,126 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-14 19:38:18,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:38:18,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-10-14 19:38:18,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-10-14 19:38:18,133 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-10-14 19:38:18,142 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:38:18,149 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;@23bfd6da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:38:18,149 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 19:38:18,165 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:38:18,165 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-10-14 19:38:18,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:38:18,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:18,166 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:18,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:18,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:18,174 INFO L85 PathProgramCache]: Analyzing trace with hash -501630994, now seen corresponding path program 1 times [2024-10-14 19:38:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:18,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763018983] [2024-10-14 19:38:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:18,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:18,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:18,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:18,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763018983] [2024-10-14 19:38:18,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763018983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:18,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:18,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:38:18,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562377167] [2024-10-14 19:38:18,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:18,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:38:18,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:18,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:38:18,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:38:18,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-10-14 19:38:18,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-14 19:38:18,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:18,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-10-14 19:38:18,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:18,626 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-10-14 19:38:18,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:38:18,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1149 event pairs, 75 based on Foata normal form. 24/224 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-10-14 19:38:18,631 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-10-14 19:38:18,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-10-14 19:38:18,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:38:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:38:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-10-14 19:38:18,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-14 19:38:18,642 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-10-14 19:38:18,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-10-14 19:38:18,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 19:38:18,647 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-10-14 19:38:18,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-10-14 19:38:18,653 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-10-14 19:38:18,653 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-10-14 19:38:18,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-14 19:38:18,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:18,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:18,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:38:18,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:18,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:18,655 INFO L85 PathProgramCache]: Analyzing trace with hash -501629625, now seen corresponding path program 1 times [2024-10-14 19:38:18,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:18,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741325518] [2024-10-14 19:38:18,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:18,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:19,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:19,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741325518] [2024-10-14 19:38:19,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741325518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:19,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:19,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:38:19,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436793193] [2024-10-14 19:38:19,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:19,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:38:19,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:19,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:38:19,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:38:19,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-14 19:38:19,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-10-14 19:38:19,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:19,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-14 19:38:19,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:19,643 INFO L124 PetriNetUnfolderBase]: 1998/3484 cut-off events. [2024-10-14 19:38:19,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:38:19,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6521 conditions, 3484 events. 1998/3484 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 23583 event pairs, 433 based on Foata normal form. 0/3345 useless extension candidates. Maximal degree in co-relation 6515. Up to 1096 conditions per place. [2024-10-14 19:38:19,669 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 30 selfloop transitions, 7 changer transitions 61/111 dead transitions. [2024-10-14 19:38:19,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 111 transitions, 430 flow [2024-10-14 19:38:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:38:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:38:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 253 transitions. [2024-10-14 19:38:19,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6537467700258398 [2024-10-14 19:38:19,673 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 253 transitions. [2024-10-14 19:38:19,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 111 transitions, 430 flow [2024-10-14 19:38:19,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 111 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:38:19,680 INFO L231 Difference]: Finished difference. Result has 58 places, 39 transitions, 171 flow [2024-10-14 19:38:19,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=171, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2024-10-14 19:38:19,682 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-10-14 19:38:19,682 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 171 flow [2024-10-14 19:38:19,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-10-14 19:38:19,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:19,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:19,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:38:19,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:19,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:19,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1971983304, now seen corresponding path program 1 times [2024-10-14 19:38:19,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:19,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908554724] [2024-10-14 19:38:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:19,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:19,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:19,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908554724] [2024-10-14 19:38:19,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908554724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:19,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:19,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:38:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989437955] [2024-10-14 19:38:19,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:19,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:38:19,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:38:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:38:19,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-14 19:38:19,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-14 19:38:19,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:19,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-14 19:38:19,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:20,340 INFO L124 PetriNetUnfolderBase]: 1395/2659 cut-off events. [2024-10-14 19:38:20,340 INFO L125 PetriNetUnfolderBase]: For 4959/4965 co-relation queries the response was YES. [2024-10-14 19:38:20,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8363 conditions, 2659 events. 1395/2659 cut-off events. For 4959/4965 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 18305 event pairs, 194 based on Foata normal form. 90/2733 useless extension candidates. Maximal degree in co-relation 8348. Up to 1010 conditions per place. [2024-10-14 19:38:20,413 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 40 selfloop transitions, 11 changer transitions 58/122 dead transitions. [2024-10-14 19:38:20,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 122 transitions, 875 flow [2024-10-14 19:38:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:38:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:38:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 272 transitions. [2024-10-14 19:38:20,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6325581395348837 [2024-10-14 19:38:20,420 INFO L175 Difference]: Start difference. First operand has 58 places, 39 transitions, 171 flow. Second operand 10 states and 272 transitions. [2024-10-14 19:38:20,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 122 transitions, 875 flow [2024-10-14 19:38:20,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 122 transitions, 751 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-10-14 19:38:20,460 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 269 flow [2024-10-14 19:38:20,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=269, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2024-10-14 19:38:20,462 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-10-14 19:38:20,462 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 269 flow [2024-10-14 19:38:20,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-14 19:38:20,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:20,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:20,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:38:20,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:20,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1884885466, now seen corresponding path program 1 times [2024-10-14 19:38:20,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:20,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528236381] [2024-10-14 19:38:20,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:20,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:20,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:20,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528236381] [2024-10-14 19:38:20,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528236381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:20,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:20,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:38:20,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179458059] [2024-10-14 19:38:20,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:20,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:38:20,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:20,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:38:20,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:38:20,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-14 19:38:20,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-14 19:38:20,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:20,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-14 19:38:20,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:21,070 INFO L124 PetriNetUnfolderBase]: 1248/2367 cut-off events. [2024-10-14 19:38:21,070 INFO L125 PetriNetUnfolderBase]: For 8192/8196 co-relation queries the response was YES. [2024-10-14 19:38:21,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8598 conditions, 2367 events. 1248/2367 cut-off events. For 8192/8196 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 15885 event pairs, 222 based on Foata normal form. 67/2402 useless extension candidates. Maximal degree in co-relation 8576. Up to 954 conditions per place. [2024-10-14 19:38:21,088 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 45 selfloop transitions, 17 changer transitions 50/125 dead transitions. [2024-10-14 19:38:21,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 125 transitions, 991 flow [2024-10-14 19:38:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:38:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:38:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 266 transitions. [2024-10-14 19:38:21,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6186046511627907 [2024-10-14 19:38:21,090 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 269 flow. Second operand 10 states and 266 transitions. [2024-10-14 19:38:21,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 125 transitions, 991 flow [2024-10-14 19:38:21,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 125 transitions, 959 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-10-14 19:38:21,107 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 441 flow [2024-10-14 19:38:21,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=441, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2024-10-14 19:38:21,109 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 30 predicate places. [2024-10-14 19:38:21,109 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 441 flow [2024-10-14 19:38:21,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-14 19:38:21,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:21,110 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:21,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:38:21,111 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:21,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:21,111 INFO L85 PathProgramCache]: Analyzing trace with hash 633977861, now seen corresponding path program 1 times [2024-10-14 19:38:21,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:21,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063961507] [2024-10-14 19:38:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:21,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:21,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:21,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063961507] [2024-10-14 19:38:21,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063961507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:21,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:21,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:38:21,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667487941] [2024-10-14 19:38:21,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:21,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:38:21,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:38:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:38:21,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-14 19:38:21,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-10-14 19:38:21,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:21,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-14 19:38:21,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:21,674 INFO L124 PetriNetUnfolderBase]: 1123/2176 cut-off events. [2024-10-14 19:38:21,674 INFO L125 PetriNetUnfolderBase]: For 12090/12096 co-relation queries the response was YES. [2024-10-14 19:38:21,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9144 conditions, 2176 events. 1123/2176 cut-off events. For 12090/12096 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14594 event pairs, 125 based on Foata normal form. 51/2216 useless extension candidates. Maximal degree in co-relation 9111. Up to 900 conditions per place. [2024-10-14 19:38:21,697 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 44 selfloop transitions, 22 changer transitions 40/119 dead transitions. [2024-10-14 19:38:21,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 119 transitions, 1169 flow [2024-10-14 19:38:21,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:38:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:38:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 254 transitions. [2024-10-14 19:38:21,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5906976744186047 [2024-10-14 19:38:21,700 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 441 flow. Second operand 10 states and 254 transitions. [2024-10-14 19:38:21,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 119 transitions, 1169 flow [2024-10-14 19:38:21,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 119 transitions, 1117 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-10-14 19:38:21,730 INFO L231 Difference]: Finished difference. Result has 85 places, 63 transitions, 623 flow [2024-10-14 19:38:21,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=623, PETRI_PLACES=85, PETRI_TRANSITIONS=63} [2024-10-14 19:38:21,731 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 38 predicate places. [2024-10-14 19:38:21,732 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 63 transitions, 623 flow [2024-10-14 19:38:21,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-10-14 19:38:21,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:21,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:21,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:38:21,735 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:21,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:21,735 INFO L85 PathProgramCache]: Analyzing trace with hash 175692443, now seen corresponding path program 1 times [2024-10-14 19:38:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:21,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45378967] [2024-10-14 19:38:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:21,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:21,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:21,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45378967] [2024-10-14 19:38:21,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45378967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:21,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:21,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:38:21,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258495565] [2024-10-14 19:38:21,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:21,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:38:21,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:21,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:38:21,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:38:21,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-14 19:38:21,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 63 transitions, 623 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-10-14 19:38:21,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:21,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-14 19:38:21,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:22,352 INFO L124 PetriNetUnfolderBase]: 1300/2549 cut-off events. [2024-10-14 19:38:22,353 INFO L125 PetriNetUnfolderBase]: For 19339/19339 co-relation queries the response was YES. [2024-10-14 19:38:22,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11715 conditions, 2549 events. 1300/2549 cut-off events. For 19339/19339 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 18542 event pairs, 203 based on Foata normal form. 50/2570 useless extension candidates. Maximal degree in co-relation 11675. Up to 688 conditions per place. [2024-10-14 19:38:22,373 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 48 selfloop transitions, 26 changer transitions 43/130 dead transitions. [2024-10-14 19:38:22,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 130 transitions, 1431 flow [2024-10-14 19:38:22,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:38:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:38:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 259 transitions. [2024-10-14 19:38:22,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6023255813953489 [2024-10-14 19:38:22,375 INFO L175 Difference]: Start difference. First operand has 85 places, 63 transitions, 623 flow. Second operand 10 states and 259 transitions. [2024-10-14 19:38:22,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 130 transitions, 1431 flow [2024-10-14 19:38:22,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 130 transitions, 1373 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-10-14 19:38:22,410 INFO L231 Difference]: Finished difference. Result has 91 places, 63 transitions, 729 flow [2024-10-14 19:38:22,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=729, PETRI_PLACES=91, PETRI_TRANSITIONS=63} [2024-10-14 19:38:22,412 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 44 predicate places. [2024-10-14 19:38:22,412 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 63 transitions, 729 flow [2024-10-14 19:38:22,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-10-14 19:38:22,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:22,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:22,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:38:22,413 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:22,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:22,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1200267631, now seen corresponding path program 1 times [2024-10-14 19:38:22,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:22,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968648230] [2024-10-14 19:38:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:22,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:22,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:22,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968648230] [2024-10-14 19:38:22,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968648230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:22,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:22,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:38:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473771868] [2024-10-14 19:38:22,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:22,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:38:22,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:22,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:38:22,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:38:22,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-14 19:38:22,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 63 transitions, 729 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-10-14 19:38:22,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:22,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-14 19:38:22,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:23,095 INFO L124 PetriNetUnfolderBase]: 1473/3012 cut-off events. [2024-10-14 19:38:23,096 INFO L125 PetriNetUnfolderBase]: For 27330/27330 co-relation queries the response was YES. [2024-10-14 19:38:23,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14341 conditions, 3012 events. 1473/3012 cut-off events. For 27330/27330 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 23658 event pairs, 249 based on Foata normal form. 50/2979 useless extension candidates. Maximal degree in co-relation 14308. Up to 912 conditions per place. [2024-10-14 19:38:23,122 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 46 selfloop transitions, 25 changer transitions 46/130 dead transitions. [2024-10-14 19:38:23,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 130 transitions, 1659 flow [2024-10-14 19:38:23,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:38:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:38:23,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-10-14 19:38:23,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5976744186046512 [2024-10-14 19:38:23,125 INFO L175 Difference]: Start difference. First operand has 91 places, 63 transitions, 729 flow. Second operand 10 states and 257 transitions. [2024-10-14 19:38:23,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 130 transitions, 1659 flow [2024-10-14 19:38:23,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 130 transitions, 1595 flow, removed 32 selfloop flow, removed 5 redundant places. [2024-10-14 19:38:23,167 INFO L231 Difference]: Finished difference. Result has 98 places, 62 transitions, 829 flow [2024-10-14 19:38:23,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=829, PETRI_PLACES=98, PETRI_TRANSITIONS=62} [2024-10-14 19:38:23,168 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 51 predicate places. [2024-10-14 19:38:23,170 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 62 transitions, 829 flow [2024-10-14 19:38:23,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-10-14 19:38:23,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:23,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:23,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:38:23,171 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:23,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:23,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2135515553, now seen corresponding path program 1 times [2024-10-14 19:38:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:23,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600756766] [2024-10-14 19:38:23,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:23,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:23,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:23,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600756766] [2024-10-14 19:38:23,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600756766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:23,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:23,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:38:23,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523772062] [2024-10-14 19:38:23,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:23,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:38:23,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:23,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:38:23,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:38:23,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-14 19:38:23,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 62 transitions, 829 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-10-14 19:38:23,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:23,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-14 19:38:23,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:23,846 INFO L124 PetriNetUnfolderBase]: 1674/3559 cut-off events. [2024-10-14 19:38:23,847 INFO L125 PetriNetUnfolderBase]: For 36984/36984 co-relation queries the response was YES. [2024-10-14 19:38:23,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16835 conditions, 3559 events. 1674/3559 cut-off events. For 36984/36984 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 30289 event pairs, 325 based on Foata normal form. 58/3554 useless extension candidates. Maximal degree in co-relation 16798. Up to 1068 conditions per place. [2024-10-14 19:38:23,883 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 41 selfloop transitions, 23 changer transitions 50/127 dead transitions. [2024-10-14 19:38:23,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 127 transitions, 1829 flow [2024-10-14 19:38:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:38:23,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:38:23,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 255 transitions. [2024-10-14 19:38:23,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5930232558139535 [2024-10-14 19:38:23,886 INFO L175 Difference]: Start difference. First operand has 98 places, 62 transitions, 829 flow. Second operand 10 states and 255 transitions. [2024-10-14 19:38:23,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 127 transitions, 1829 flow [2024-10-14 19:38:23,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 127 transitions, 1691 flow, removed 53 selfloop flow, removed 7 redundant places. [2024-10-14 19:38:23,978 INFO L231 Difference]: Finished difference. Result has 101 places, 57 transitions, 745 flow [2024-10-14 19:38:23,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=745, PETRI_PLACES=101, PETRI_TRANSITIONS=57} [2024-10-14 19:38:23,980 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 54 predicate places. [2024-10-14 19:38:23,980 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 57 transitions, 745 flow [2024-10-14 19:38:23,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-10-14 19:38:23,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:23,982 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] [2024-10-14 19:38:23,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 19:38:23,982 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:23,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash -285954908, now seen corresponding path program 1 times [2024-10-14 19:38:23,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:23,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927094051] [2024-10-14 19:38:23,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:23,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:24,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:24,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927094051] [2024-10-14 19:38:24,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927094051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:24,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:24,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:38:24,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480373802] [2024-10-14 19:38:24,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:24,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:38:24,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:38:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:38:24,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-14 19:38:24,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 57 transitions, 745 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-10-14 19:38:24,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:24,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-14 19:38:24,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:24,667 INFO L124 PetriNetUnfolderBase]: 2587/4981 cut-off events. [2024-10-14 19:38:24,667 INFO L125 PetriNetUnfolderBase]: For 14456/14647 co-relation queries the response was YES. [2024-10-14 19:38:24,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13315 conditions, 4981 events. 2587/4981 cut-off events. For 14456/14647 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 40007 event pairs, 778 based on Foata normal form. 237/4976 useless extension candidates. Maximal degree in co-relation 13277. Up to 2405 conditions per place. [2024-10-14 19:38:24,705 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 27 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-10-14 19:38:24,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 72 transitions, 843 flow [2024-10-14 19:38:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:38:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:38:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-10-14 19:38:24,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2024-10-14 19:38:24,707 INFO L175 Difference]: Start difference. First operand has 101 places, 57 transitions, 745 flow. Second operand 4 states and 118 transitions. [2024-10-14 19:38:24,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 72 transitions, 843 flow [2024-10-14 19:38:24,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 72 transitions, 750 flow, removed 16 selfloop flow, removed 13 redundant places. [2024-10-14 19:38:24,766 INFO L231 Difference]: Finished difference. Result has 87 places, 61 transitions, 690 flow [2024-10-14 19:38:24,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=690, PETRI_PLACES=87, PETRI_TRANSITIONS=61} [2024-10-14 19:38:24,767 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 40 predicate places. [2024-10-14 19:38:24,768 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 61 transitions, 690 flow [2024-10-14 19:38:24,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-10-14 19:38:24,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:24,769 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] [2024-10-14 19:38:24,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 19:38:24,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:24,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:24,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1806013601, now seen corresponding path program 1 times [2024-10-14 19:38:24,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:24,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028277954] [2024-10-14 19:38:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:24,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:24,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:24,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:24,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028277954] [2024-10-14 19:38:24,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028277954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:24,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:24,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:38:24,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993163063] [2024-10-14 19:38:24,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:24,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:38:24,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:24,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:38:24,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:38:24,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-14 19:38:24,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 61 transitions, 690 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-14 19:38:24,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:24,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-14 19:38:24,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:25,245 INFO L124 PetriNetUnfolderBase]: 1964/3752 cut-off events. [2024-10-14 19:38:25,246 INFO L125 PetriNetUnfolderBase]: For 3311/4256 co-relation queries the response was YES. [2024-10-14 19:38:25,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10086 conditions, 3752 events. 1964/3752 cut-off events. For 3311/4256 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 28288 event pairs, 193 based on Foata normal form. 273/3843 useless extension candidates. Maximal degree in co-relation 10056. Up to 1820 conditions per place. [2024-10-14 19:38:25,265 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 31 selfloop transitions, 8 changer transitions 4/82 dead transitions. [2024-10-14 19:38:25,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 82 transitions, 837 flow [2024-10-14 19:38:25,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:38:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:38:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-10-14 19:38:25,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6930232558139535 [2024-10-14 19:38:25,267 INFO L175 Difference]: Start difference. First operand has 87 places, 61 transitions, 690 flow. Second operand 5 states and 149 transitions. [2024-10-14 19:38:25,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 82 transitions, 837 flow [2024-10-14 19:38:25,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 802 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-10-14 19:38:25,278 INFO L231 Difference]: Finished difference. Result has 89 places, 64 transitions, 697 flow [2024-10-14 19:38:25,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=697, PETRI_PLACES=89, PETRI_TRANSITIONS=64} [2024-10-14 19:38:25,279 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 42 predicate places. [2024-10-14 19:38:25,279 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 64 transitions, 697 flow [2024-10-14 19:38:25,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-14 19:38:25,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:38:25,280 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:25,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 19:38:25,280 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:38:25,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:38:25,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2078207800, now seen corresponding path program 1 times [2024-10-14 19:38:25,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:38:25,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243396270] [2024-10-14 19:38:25,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:38:25,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:38:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:38:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:38:25,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:38:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243396270] [2024-10-14 19:38:25,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243396270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:38:25,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:38:25,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:38:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013315996] [2024-10-14 19:38:25,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:38:25,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:38:25,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:38:25,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:38:25,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:38:25,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-14 19:38:25,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 64 transitions, 697 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:38:25,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:38:25,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-14 19:38:25,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:38:25,739 INFO L124 PetriNetUnfolderBase]: 1596/2962 cut-off events. [2024-10-14 19:38:25,739 INFO L125 PetriNetUnfolderBase]: For 5467/7375 co-relation queries the response was YES. [2024-10-14 19:38:25,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9661 conditions, 2962 events. 1596/2962 cut-off events. For 5467/7375 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 21336 event pairs, 88 based on Foata normal form. 252/3052 useless extension candidates. Maximal degree in co-relation 9632. Up to 1256 conditions per place. [2024-10-14 19:38:25,750 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2024-10-14 19:38:25,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 78 transitions, 806 flow [2024-10-14 19:38:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:38:25,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:38:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-10-14 19:38:25,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589147286821705 [2024-10-14 19:38:25,752 INFO L175 Difference]: Start difference. First operand has 89 places, 64 transitions, 697 flow. Second operand 6 states and 170 transitions. [2024-10-14 19:38:25,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 78 transitions, 806 flow [2024-10-14 19:38:25,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 78 transitions, 759 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-10-14 19:38:25,760 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-10-14 19:38:25,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-10-14 19:38:25,761 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 34 predicate places. [2024-10-14 19:38:25,761 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-10-14 19:38:25,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:38:25,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-14 19:38:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-14 19:38:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-14 19:38:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-14 19:38:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-14 19:38:25,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 19:38:25,766 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:38:25,769 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:38:25,769 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:38:25,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:38:25 BasicIcfg [2024-10-14 19:38:25,779 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:38:25,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:38:25,780 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:38:25,780 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:38:25,781 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:38:17" (3/4) ... [2024-10-14 19:38:25,784 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:38:25,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-14 19:38:25,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-14 19:38:25,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-14 19:38:25,793 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-14 19:38:25,793 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-14 19:38:25,793 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 19:38:25,794 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 19:38:25,877 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:38:25,877 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:38:25,877 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:38:25,878 INFO L158 Benchmark]: Toolchain (without parser) took 9023.24ms. Allocated memory was 178.3MB in the beginning and 444.6MB in the end (delta: 266.3MB). Free memory was 144.2MB in the beginning and 362.6MB in the end (delta: -218.3MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-10-14 19:38:25,878 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 178.3MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:38:25,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.34ms. Allocated memory is still 178.3MB. Free memory was 144.0MB in the beginning and 130.9MB in the end (delta: 13.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-14 19:38:25,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.44ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 128.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:38:25,879 INFO L158 Benchmark]: Boogie Preprocessor took 62.73ms. Allocated memory is still 178.3MB. Free memory was 128.7MB in the beginning and 126.5MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:38:25,879 INFO L158 Benchmark]: RCFGBuilder took 522.36ms. Allocated memory is still 178.3MB. Free memory was 126.5MB in the beginning and 133.7MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 19:38:25,879 INFO L158 Benchmark]: TraceAbstraction took 7789.50ms. Allocated memory was 178.3MB in the beginning and 444.6MB in the end (delta: 266.3MB). Free memory was 132.6MB in the beginning and 366.8MB in the end (delta: -234.1MB). Peak memory consumption was 278.6MB. Max. memory is 16.1GB. [2024-10-14 19:38:25,880 INFO L158 Benchmark]: Witness Printer took 97.35ms. Allocated memory is still 444.6MB. Free memory was 366.8MB in the beginning and 362.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:38:25,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 178.3MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.34ms. Allocated memory is still 178.3MB. Free memory was 144.0MB in the beginning and 130.9MB in the end (delta: 13.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.44ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 128.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.73ms. Allocated memory is still 178.3MB. Free memory was 128.7MB in the beginning and 126.5MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 522.36ms. Allocated memory is still 178.3MB. Free memory was 126.5MB in the beginning and 133.7MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7789.50ms. Allocated memory was 178.3MB in the beginning and 444.6MB in the end (delta: 266.3MB). Free memory was 132.6MB in the beginning and 366.8MB in the end (delta: -234.1MB). Peak memory consumption was 278.6MB. Max. memory is 16.1GB. * Witness Printer took 97.35ms. Allocated memory is still 444.6MB. Free memory was 366.8MB in the beginning and 362.6MB 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: 772]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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 7 procedures, 66 locations, 5 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: 7.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 510 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 468 mSDsluCounter, 411 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 299 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1007 IncrementalHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 112 mSDtfsCounter, 1007 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=829occurred in iteration=7, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2024-10-14 19:38:25,907 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