./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/safe023_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe023_tso.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:40:26,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:40:26,468 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:40:26,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:40:26,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:40:26,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:40:26,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:40:26,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:40:26,497 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:40:26,497 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:40:26,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:40:26,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:40:26,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:40:26,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:40:26,500 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:40:26,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:40:26,503 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:40:26,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:40:26,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:40:26,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:40:26,504 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:40:26,505 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:40:26,508 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:40:26,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:40:26,508 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:40:26,509 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:40:26,509 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:40:26,509 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:40:26,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:40:26,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:40:26,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:40:26,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:40:26,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:40:26,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:40:26,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:40:26,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:40:26,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:40:26,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:40:26,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:40:26,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:40:26,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:40:26,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:40:26,514 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca [2024-10-11 19:40:26,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:40:26,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:40:26,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:40:26,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:40:26,817 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:40:26,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe023_tso.i [2024-10-11 19:40:28,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:40:28,507 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:40:28,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe023_tso.i [2024-10-11 19:40:28,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c9877928b/850a4652eb2949d89abf486051cbe4d6/FLAG58b6bf550 [2024-10-11 19:40:28,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c9877928b/850a4652eb2949d89abf486051cbe4d6 [2024-10-11 19:40:28,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:40:28,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:40:28,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:40:28,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:40:28,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:40:28,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:40:28" (1/1) ... [2024-10-11 19:40:28,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cad09a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:28, skipping insertion in model container [2024-10-11 19:40:28,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:40:28" (1/1) ... [2024-10-11 19:40:28,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:40:28,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:40:28,951 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:40:29,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:40:29,062 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:40:29,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29 WrapperNode [2024-10-11 19:40:29,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:40:29,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:40:29,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:40:29,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:40:29,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,105 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-10-11 19:40:29,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:40:29,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:40:29,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:40:29,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:40:29,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,119 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,133 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]. [2024-10-11 19:40:29,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:40:29,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:40:29,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:40:29,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:40:29,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (1/1) ... [2024-10-11 19:40:29,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:40:29,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:40:29,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:40:29,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:40:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:40:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:40:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:40:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:40:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:40:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:40:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:40:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:40:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:40:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:40:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:40:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:40:29,256 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:40:29,415 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:40:29,418 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:40:29,601 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:40:29,602 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:40:29,701 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:40:29,702 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:40:29,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:40:29 BoogieIcfgContainer [2024-10-11 19:40:29,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:40:29,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:40:29,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:40:29,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:40:29,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:40:28" (1/3) ... [2024-10-11 19:40:29,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395cb1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:40:29, skipping insertion in model container [2024-10-11 19:40:29,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:29" (2/3) ... [2024-10-11 19:40:29,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395cb1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:40:29, skipping insertion in model container [2024-10-11 19:40:29,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:40:29" (3/3) ... [2024-10-11 19:40:29,713 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2024-10-11 19:40:29,731 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:40:29,731 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:40:29,732 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:40:29,779 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:40:29,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-10-11 19:40:29,858 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-10-11 19:40:29,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:29,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-10-11 19:40:29,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-10-11 19:40:29,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-10-11 19:40:29,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:40:29,893 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;@5ffc8c11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:40:29,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 19:40:29,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:40:29,915 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-10-11 19:40:29,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:29,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:29,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:29,917 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)] === [2024-10-11 19:40:29,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash 166983522, now seen corresponding path program 1 times [2024-10-11 19:40:29,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:29,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427609594] [2024-10-11 19:40:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:29,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:30,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:30,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427609594] [2024-10-11 19:40:30,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427609594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:30,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:30,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:40:30,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524146671] [2024-10-11 19:40:30,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:30,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:40:30,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:30,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:40:30,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:40:30,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-10-11 19:40:30,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-10-11 19:40:30,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:30,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-10-11 19:40:30,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:30,479 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-10-11 19:40:30,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:30,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1211 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-10-11 19:40:30,493 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-10-11 19:40:30,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-10-11 19:40:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:40:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:40:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-10-11 19:40:30,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-10-11 19:40:30,514 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-10-11 19:40:30,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-10-11 19:40:30,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:40:30,521 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-10-11 19:40:30,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-10-11 19:40:30,529 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-10-11 19:40:30,529 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-10-11 19:40:30,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-10-11 19:40:30,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:30,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:30,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:40:30,531 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)] === [2024-10-11 19:40:30,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:30,532 INFO L85 PathProgramCache]: Analyzing trace with hash 166985015, now seen corresponding path program 1 times [2024-10-11 19:40:30,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:30,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603693887] [2024-10-11 19:40:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:30,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:30,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:30,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603693887] [2024-10-11 19:40:30,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603693887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:30,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:30,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:40:30,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501790605] [2024-10-11 19:40:30,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:30,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:40:30,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:30,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:40:30,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:40:30,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:40:30,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-11 19:40:30,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:30,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:40:30,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:31,523 INFO L124 PetriNetUnfolderBase]: 1517/2767 cut-off events. [2024-10-11 19:40:31,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:31,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5153 conditions, 2767 events. 1517/2767 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 19841 event pairs, 364 based on Foata normal form. 0/2635 useless extension candidates. Maximal degree in co-relation 5147. Up to 795 conditions per place. [2024-10-11 19:40:31,549 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 27 selfloop transitions, 6 changer transitions 55/103 dead transitions. [2024-10-11 19:40:31,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 103 transitions, 392 flow [2024-10-11 19:40:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:40:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:40:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 261 transitions. [2024-10-11 19:40:31,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-10-11 19:40:31,553 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 261 transitions. [2024-10-11 19:40:31,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 103 transitions, 392 flow [2024-10-11 19:40:31,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 103 transitions, 391 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:40:31,560 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 159 flow [2024-10-11 19:40:31,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2024-10-11 19:40:31,562 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-10-11 19:40:31,563 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 159 flow [2024-10-11 19:40:31,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-11 19:40:31,563 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:31,563 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:31,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:40:31,565 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)] === [2024-10-11 19:40:31,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:31,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1966580120, now seen corresponding path program 1 times [2024-10-11 19:40:31,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:31,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042493839] [2024-10-11 19:40:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:31,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:31,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042493839] [2024-10-11 19:40:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042493839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:31,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:31,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:31,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943696631] [2024-10-11 19:40:31,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:31,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:31,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:31,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:31,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:31,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:40:31,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-11 19:40:31,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:31,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:40:31,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:32,192 INFO L124 PetriNetUnfolderBase]: 854/1800 cut-off events. [2024-10-11 19:40:32,193 INFO L125 PetriNetUnfolderBase]: For 2688/2694 co-relation queries the response was YES. [2024-10-11 19:40:32,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4975 conditions, 1800 events. 854/1800 cut-off events. For 2688/2694 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 12956 event pairs, 182 based on Foata normal form. 69/1843 useless extension candidates. Maximal degree in co-relation 4960. Up to 355 conditions per place. [2024-10-11 19:40:32,205 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 39 selfloop transitions, 6 changer transitions 50/110 dead transitions. [2024-10-11 19:40:32,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 110 transitions, 715 flow [2024-10-11 19:40:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:40:32,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:40:32,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 273 transitions. [2024-10-11 19:40:32,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204545454545455 [2024-10-11 19:40:32,210 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 159 flow. Second operand 10 states and 273 transitions. [2024-10-11 19:40:32,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 110 transitions, 715 flow [2024-10-11 19:40:32,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 110 transitions, 619 flow, removed 23 selfloop flow, removed 4 redundant places. [2024-10-11 19:40:32,229 INFO L231 Difference]: Finished difference. Result has 66 places, 42 transitions, 203 flow [2024-10-11 19:40:32,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=203, PETRI_PLACES=66, PETRI_TRANSITIONS=42} [2024-10-11 19:40:32,230 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-10-11 19:40:32,230 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 42 transitions, 203 flow [2024-10-11 19:40:32,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-11 19:40:32,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:32,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:32,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:40:32,231 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)] === [2024-10-11 19:40:32,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:32,232 INFO L85 PathProgramCache]: Analyzing trace with hash 183036724, now seen corresponding path program 1 times [2024-10-11 19:40:32,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:32,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789366889] [2024-10-11 19:40:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:32,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:32,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:32,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789366889] [2024-10-11 19:40:32,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789366889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:32,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:32,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:32,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568703629] [2024-10-11 19:40:32,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:32,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:32,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:32,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:32,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:32,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:40:32,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 42 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-10-11 19:40:32,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:32,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:40:32,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:32,701 INFO L124 PetriNetUnfolderBase]: 641/1326 cut-off events. [2024-10-11 19:40:32,702 INFO L125 PetriNetUnfolderBase]: For 2920/2920 co-relation queries the response was YES. [2024-10-11 19:40:32,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3952 conditions, 1326 events. 641/1326 cut-off events. For 2920/2920 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8962 event pairs, 141 based on Foata normal form. 16/1320 useless extension candidates. Maximal degree in co-relation 3930. Up to 402 conditions per place. [2024-10-11 19:40:32,713 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 34 selfloop transitions, 9 changer transitions 23/81 dead transitions. [2024-10-11 19:40:32,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 81 transitions, 527 flow [2024-10-11 19:40:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:40:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:40:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 252 transitions. [2024-10-11 19:40:32,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5727272727272728 [2024-10-11 19:40:32,717 INFO L175 Difference]: Start difference. First operand has 66 places, 42 transitions, 203 flow. Second operand 10 states and 252 transitions. [2024-10-11 19:40:32,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 81 transitions, 527 flow [2024-10-11 19:40:32,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 81 transitions, 456 flow, removed 33 selfloop flow, removed 3 redundant places. [2024-10-11 19:40:32,728 INFO L231 Difference]: Finished difference. Result has 75 places, 45 transitions, 257 flow [2024-10-11 19:40:32,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=257, PETRI_PLACES=75, PETRI_TRANSITIONS=45} [2024-10-11 19:40:32,730 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-10-11 19:40:32,732 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 45 transitions, 257 flow [2024-10-11 19:40:32,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-10-11 19:40:32,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:32,732 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] [2024-10-11 19:40:32,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:40:32,733 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)] === [2024-10-11 19:40:32,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:32,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1768757270, now seen corresponding path program 1 times [2024-10-11 19:40:32,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:32,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742517411] [2024-10-11 19:40:32,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:32,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:32,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:32,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742517411] [2024-10-11 19:40:32,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742517411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:32,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:32,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:40:32,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787649429] [2024-10-11 19:40:32,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:32,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:32,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:32,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:40:32,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 45 transitions, 257 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-10-11 19:40:32,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:32,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:40:32,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:33,261 INFO L124 PetriNetUnfolderBase]: 734/1595 cut-off events. [2024-10-11 19:40:33,262 INFO L125 PetriNetUnfolderBase]: For 3694/3694 co-relation queries the response was YES. [2024-10-11 19:40:33,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4881 conditions, 1595 events. 734/1595 cut-off events. For 3694/3694 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 11476 event pairs, 136 based on Foata normal form. 38/1591 useless extension candidates. Maximal degree in co-relation 4851. Up to 423 conditions per place. [2024-10-11 19:40:33,274 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 38 selfloop transitions, 12 changer transitions 37/102 dead transitions. [2024-10-11 19:40:33,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 102 transitions, 753 flow [2024-10-11 19:40:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:40:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:40:33,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 267 transitions. [2024-10-11 19:40:33,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6068181818181818 [2024-10-11 19:40:33,277 INFO L175 Difference]: Start difference. First operand has 75 places, 45 transitions, 257 flow. Second operand 10 states and 267 transitions. [2024-10-11 19:40:33,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 102 transitions, 753 flow [2024-10-11 19:40:33,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 655 flow, removed 46 selfloop flow, removed 13 redundant places. [2024-10-11 19:40:33,293 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 329 flow [2024-10-11 19:40:33,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=329, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2024-10-11 19:40:33,296 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-10-11 19:40:33,296 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 329 flow [2024-10-11 19:40:33,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-10-11 19:40:33,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:33,297 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] [2024-10-11 19:40:33,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:40:33,297 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)] === [2024-10-11 19:40:33,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash 211573145, now seen corresponding path program 1 times [2024-10-11 19:40:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775115676] [2024-10-11 19:40:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:33,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:33,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:33,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775115676] [2024-10-11 19:40:33,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775115676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:33,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:33,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:33,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149699519] [2024-10-11 19:40:33,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:33,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:33,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:33,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:33,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-11 19:40:33,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-11 19:40:33,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:33,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-11 19:40:33,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:33,818 INFO L124 PetriNetUnfolderBase]: 668/1394 cut-off events. [2024-10-11 19:40:33,818 INFO L125 PetriNetUnfolderBase]: For 4333/4333 co-relation queries the response was YES. [2024-10-11 19:40:33,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4410 conditions, 1394 events. 668/1394 cut-off events. For 4333/4333 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9280 event pairs, 116 based on Foata normal form. 18/1391 useless extension candidates. Maximal degree in co-relation 4382. Up to 306 conditions per place. [2024-10-11 19:40:33,831 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 51 selfloop transitions, 12 changer transitions 28/105 dead transitions. [2024-10-11 19:40:33,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 105 transitions, 887 flow [2024-10-11 19:40:33,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:40:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:40:33,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 240 transitions. [2024-10-11 19:40:33,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-11 19:40:33,833 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 329 flow. Second operand 9 states and 240 transitions. [2024-10-11 19:40:33,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 105 transitions, 887 flow [2024-10-11 19:40:33,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 105 transitions, 805 flow, removed 41 selfloop flow, removed 6 redundant places. [2024-10-11 19:40:33,848 INFO L231 Difference]: Finished difference. Result has 78 places, 51 transitions, 408 flow [2024-10-11 19:40:33,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=408, PETRI_PLACES=78, PETRI_TRANSITIONS=51} [2024-10-11 19:40:33,849 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2024-10-11 19:40:33,849 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 51 transitions, 408 flow [2024-10-11 19:40:33,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-11 19:40:33,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:33,850 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] [2024-10-11 19:40:33,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:40:33,850 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)] === [2024-10-11 19:40:33,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:33,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1836265869, now seen corresponding path program 2 times [2024-10-11 19:40:33,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:33,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463581387] [2024-10-11 19:40:33,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:33,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:33,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:33,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463581387] [2024-10-11 19:40:33,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463581387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:33,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:33,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:33,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478849144] [2024-10-11 19:40:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:33,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:33,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:33,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-11 19:40:33,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 51 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:40:33,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:33,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-11 19:40:33,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:34,191 INFO L124 PetriNetUnfolderBase]: 374/894 cut-off events. [2024-10-11 19:40:34,191 INFO L125 PetriNetUnfolderBase]: For 2299/2354 co-relation queries the response was YES. [2024-10-11 19:40:34,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2626 conditions, 894 events. 374/894 cut-off events. For 2299/2354 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6103 event pairs, 53 based on Foata normal form. 48/885 useless extension candidates. Maximal degree in co-relation 2594. Up to 254 conditions per place. [2024-10-11 19:40:34,198 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 22 selfloop transitions, 5 changer transitions 32/80 dead transitions. [2024-10-11 19:40:34,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 80 transitions, 616 flow [2024-10-11 19:40:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:40:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:40:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 222 transitions. [2024-10-11 19:40:34,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6306818181818182 [2024-10-11 19:40:34,200 INFO L175 Difference]: Start difference. First operand has 78 places, 51 transitions, 408 flow. Second operand 8 states and 222 transitions. [2024-10-11 19:40:34,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 80 transitions, 616 flow [2024-10-11 19:40:34,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 80 transitions, 570 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-10-11 19:40:34,211 INFO L231 Difference]: Finished difference. Result has 79 places, 39 transitions, 250 flow [2024-10-11 19:40:34,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=250, PETRI_PLACES=79, PETRI_TRANSITIONS=39} [2024-10-11 19:40:34,212 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 31 predicate places. [2024-10-11 19:40:34,212 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 39 transitions, 250 flow [2024-10-11 19:40:34,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:40:34,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:34,213 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] [2024-10-11 19:40:34,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:40:34,213 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)] === [2024-10-11 19:40:34,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1147024848, now seen corresponding path program 1 times [2024-10-11 19:40:34,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028511741] [2024-10-11 19:40:34,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:34,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:34,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028511741] [2024-10-11 19:40:34,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028511741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:34,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:34,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:40:34,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509664308] [2024-10-11 19:40:34,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:34,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:34,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:34,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:34,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:34,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44 [2024-10-11 19:40:34,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 39 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:40:34,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:34,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44 [2024-10-11 19:40:34,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:34,533 INFO L124 PetriNetUnfolderBase]: 183/500 cut-off events. [2024-10-11 19:40:34,533 INFO L125 PetriNetUnfolderBase]: For 1356/1361 co-relation queries the response was YES. [2024-10-11 19:40:34,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 500 events. 183/500 cut-off events. For 1356/1361 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2894 event pairs, 61 based on Foata normal form. 8/484 useless extension candidates. Maximal degree in co-relation 1539. Up to 152 conditions per place. [2024-10-11 19:40:34,537 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 21 selfloop transitions, 1 changer transitions 20/59 dead transitions. [2024-10-11 19:40:34,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 59 transitions, 390 flow [2024-10-11 19:40:34,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:40:34,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:40:34,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-10-11 19:40:34,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-11 19:40:34,539 INFO L175 Difference]: Start difference. First operand has 79 places, 39 transitions, 250 flow. Second operand 6 states and 165 transitions. [2024-10-11 19:40:34,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 59 transitions, 390 flow [2024-10-11 19:40:34,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 296 flow, removed 16 selfloop flow, removed 18 redundant places. [2024-10-11 19:40:34,544 INFO L231 Difference]: Finished difference. Result has 65 places, 34 transitions, 128 flow [2024-10-11 19:40:34,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=65, PETRI_TRANSITIONS=34} [2024-10-11 19:40:34,545 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-10-11 19:40:34,545 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 34 transitions, 128 flow [2024-10-11 19:40:34,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:40:34,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:34,546 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] [2024-10-11 19:40:34,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:40:34,546 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)] === [2024-10-11 19:40:34,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:34,547 INFO L85 PathProgramCache]: Analyzing trace with hash 189492258, now seen corresponding path program 2 times [2024-10-11 19:40:34,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:34,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409952342] [2024-10-11 19:40:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:34,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:34,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:34,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409952342] [2024-10-11 19:40:34,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409952342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:34,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:34,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:40:34,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191814202] [2024-10-11 19:40:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:34,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:40:34,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:34,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:40:34,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:40:34,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-11 19:40:34,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 34 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-10-11 19:40:34,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:34,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-11 19:40:34,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:34,750 INFO L124 PetriNetUnfolderBase]: 352/685 cut-off events. [2024-10-11 19:40:34,751 INFO L125 PetriNetUnfolderBase]: For 133/141 co-relation queries the response was YES. [2024-10-11 19:40:34,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1439 conditions, 685 events. 352/685 cut-off events. For 133/141 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3515 event pairs, 90 based on Foata normal form. 27/680 useless extension candidates. Maximal degree in co-relation 1421. Up to 331 conditions per place. [2024-10-11 19:40:34,755 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 24 selfloop transitions, 4 changer transitions 4/49 dead transitions. [2024-10-11 19:40:34,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 49 transitions, 226 flow [2024-10-11 19:40:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:40:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:40:34,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-10-11 19:40:34,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-10-11 19:40:34,757 INFO L175 Difference]: Start difference. First operand has 65 places, 34 transitions, 128 flow. Second operand 4 states and 122 transitions. [2024-10-11 19:40:34,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 49 transitions, 226 flow [2024-10-11 19:40:34,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 192 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-10-11 19:40:34,760 INFO L231 Difference]: Finished difference. Result has 55 places, 36 transitions, 122 flow [2024-10-11 19:40:34,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=55, PETRI_TRANSITIONS=36} [2024-10-11 19:40:34,760 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-10-11 19:40:34,761 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 36 transitions, 122 flow [2024-10-11 19:40:34,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-10-11 19:40:34,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:34,761 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:34,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:40:34,762 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)] === [2024-10-11 19:40:34,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:34,762 INFO L85 PathProgramCache]: Analyzing trace with hash -675680255, now seen corresponding path program 1 times [2024-10-11 19:40:34,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:34,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538981049] [2024-10-11 19:40:34,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:34,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:34,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:34,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538981049] [2024-10-11 19:40:34,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538981049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:34,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:34,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:40:34,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507046654] [2024-10-11 19:40:34,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:34,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:40:34,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:34,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:40:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:40:34,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-11 19:40:34,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 36 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-10-11 19:40:34,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:34,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-11 19:40:34,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:34,961 INFO L124 PetriNetUnfolderBase]: 246/486 cut-off events. [2024-10-11 19:40:34,961 INFO L125 PetriNetUnfolderBase]: For 167/216 co-relation queries the response was YES. [2024-10-11 19:40:34,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 486 events. 246/486 cut-off events. For 167/216 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2123 event pairs, 30 based on Foata normal form. 27/491 useless extension candidates. Maximal degree in co-relation 1168. Up to 193 conditions per place. [2024-10-11 19:40:34,964 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 25 selfloop transitions, 6 changer transitions 8/56 dead transitions. [2024-10-11 19:40:34,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 56 transitions, 261 flow [2024-10-11 19:40:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:40:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:40:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-10-11 19:40:34,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6863636363636364 [2024-10-11 19:40:34,966 INFO L175 Difference]: Start difference. First operand has 55 places, 36 transitions, 122 flow. Second operand 5 states and 151 transitions. [2024-10-11 19:40:34,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 56 transitions, 261 flow [2024-10-11 19:40:34,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 252 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-11 19:40:34,967 INFO L231 Difference]: Finished difference. Result has 59 places, 36 transitions, 140 flow [2024-10-11 19:40:34,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=59, PETRI_TRANSITIONS=36} [2024-10-11 19:40:34,968 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-10-11 19:40:34,968 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 36 transitions, 140 flow [2024-10-11 19:40:34,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-10-11 19:40:34,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:34,969 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:34,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:40:34,969 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)] === [2024-10-11 19:40:34,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash 97796008, now seen corresponding path program 1 times [2024-10-11 19:40:34,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:34,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013786238] [2024-10-11 19:40:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:34,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:35,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013786238] [2024-10-11 19:40:35,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013786238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:35,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:35,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:35,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507863067] [2024-10-11 19:40:35,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:35,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:35,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:35,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:35,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:35,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-11 19:40:35,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 36 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-10-11 19:40:35,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:35,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-11 19:40:35,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:35,185 INFO L124 PetriNetUnfolderBase]: 104/212 cut-off events. [2024-10-11 19:40:35,186 INFO L125 PetriNetUnfolderBase]: For 230/283 co-relation queries the response was YES. [2024-10-11 19:40:35,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 212 events. 104/212 cut-off events. For 230/283 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 662 event pairs, 2 based on Foata normal form. 16/218 useless extension candidates. Maximal degree in co-relation 586. Up to 56 conditions per place. [2024-10-11 19:40:35,187 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-10-11 19:40:35,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 48 transitions, 238 flow [2024-10-11 19:40:35,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:40:35,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:40:35,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 168 transitions. [2024-10-11 19:40:35,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-10-11 19:40:35,188 INFO L175 Difference]: Start difference. First operand has 59 places, 36 transitions, 140 flow. Second operand 6 states and 168 transitions. [2024-10-11 19:40:35,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 48 transitions, 238 flow [2024-10-11 19:40:35,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 213 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-11 19:40:35,190 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2024-10-11 19:40:35,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2024-10-11 19:40:35,190 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2024-10-11 19:40:35,190 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2024-10-11 19:40:35,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-10-11 19:40:35,193 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-11 19:40:35,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-11 19:40:35,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-11 19:40:35,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-11 19:40:35,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-11 19:40:35,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 19:40:35,195 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:35,198 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:40:35,199 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:40:35,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:40:35 BasicIcfg [2024-10-11 19:40:35,206 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:40:35,211 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:40:35,211 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:40:35,211 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:40:35,212 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:40:29" (3/4) ... [2024-10-11 19:40:35,214 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:40:35,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 19:40:35,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 19:40:35,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 19:40:35,224 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-11 19:40:35,224 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-11 19:40:35,224 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 19:40:35,224 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 19:40:35,307 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:40:35,308 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:40:35,308 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:40:35,309 INFO L158 Benchmark]: Toolchain (without parser) took 6767.39ms. Allocated memory was 155.2MB in the beginning and 247.5MB in the end (delta: 92.3MB). Free memory was 100.0MB in the beginning and 187.4MB in the end (delta: -87.4MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-10-11 19:40:35,309 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:40:35,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.33ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 113.9MB in the end (delta: -14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 19:40:35,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.32ms. Allocated memory is still 155.2MB. Free memory was 113.9MB in the beginning and 111.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:40:35,310 INFO L158 Benchmark]: Boogie Preprocessor took 40.44ms. Allocated memory is still 155.2MB. Free memory was 111.9MB in the beginning and 109.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:40:35,310 INFO L158 Benchmark]: RCFGBuilder took 555.72ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 89.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 19:40:35,310 INFO L158 Benchmark]: TraceAbstraction took 5500.44ms. Allocated memory was 155.2MB in the beginning and 247.5MB in the end (delta: 92.3MB). Free memory was 89.0MB in the beginning and 191.6MB in the end (delta: -102.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:40:35,310 INFO L158 Benchmark]: Witness Printer took 97.30ms. Allocated memory is still 247.5MB. Free memory was 191.6MB in the beginning and 187.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:40:35,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.33ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 113.9MB in the end (delta: -14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.32ms. Allocated memory is still 155.2MB. Free memory was 113.9MB in the beginning and 111.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.44ms. Allocated memory is still 155.2MB. Free memory was 111.9MB in the beginning and 109.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.72ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 89.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5500.44ms. Allocated memory was 155.2MB in the beginning and 247.5MB in the end (delta: 92.3MB). Free memory was 89.0MB in the beginning and 191.6MB in the end (delta: -102.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 97.30ms. Allocated memory is still 247.5MB. Free memory was 191.6MB in the beginning and 187.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: 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, 68 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: 5.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 461 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 415 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 979 IncrementalHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 60 mSDtfsCounter, 979 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=6, InterpolantAutomatonStates: 80, 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, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 886 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! [2024-10-11 19:40:35,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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