./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe002_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:33:08,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:33:08,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:33:08,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:33:08,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:33:08,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:33:08,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:33:08,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:33:08,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:33:08,594 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:33:08,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:33:08,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:33:08,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:33:08,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:33:08,596 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:33:08,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:33:08,597 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:33:08,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:33:08,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:33:08,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:33:08,598 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:33:08,598 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:33:08,598 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:33:08,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:33:08,599 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:33:08,599 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:33:08,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:33:08,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:33:08,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:33:08,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:33:08,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:33:08,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:33:08,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:33:08,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:33:08,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:33:08,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:33:08,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:33:08,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:33:08,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:33:08,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:33:08,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:33:08,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:33:08,602 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2024-11-09 10:33:08,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:33:08,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:33:08,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:33:08,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:33:08,859 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:33:08,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-11-09 10:33:10,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:33:10,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:33:10,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-11-09 10:33:10,302 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7a5dd79/ac30ad3aebf04d9b92bb0e34f14a75dc/FLAG625d191a0 [2024-11-09 10:33:10,313 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7a5dd79/ac30ad3aebf04d9b92bb0e34f14a75dc [2024-11-09 10:33:10,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:33:10,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:33:10,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:33:10,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:33:10,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:33:10,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4055551d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10, skipping insertion in model container [2024-11-09 10:33:10,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:33:10,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:33:10,653 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:33:10,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:33:10,723 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:33:10,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10 WrapperNode [2024-11-09 10:33:10,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:33:10,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:33:10,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:33:10,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:33:10,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,765 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-09 10:33:10,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:33:10,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:33:10,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:33:10,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:33:10,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,798 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]. [2024-11-09 10:33:10,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:33:10,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:33:10,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:33:10,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:33:10,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (1/1) ... [2024-11-09 10:33:10,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:33:10,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:33:10,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:33:10,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:33:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:33:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:33:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:33:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:33:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:33:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:33:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:33:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:33:10,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:33:10,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:33:10,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:33:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:33:10,886 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:33:10,973 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:33:10,975 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:33:11,078 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:33:11,078 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:33:11,161 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:33:11,162 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:33:11,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:33:11 BoogieIcfgContainer [2024-11-09 10:33:11,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:33:11,166 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:33:11,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:33:11,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:33:11,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:33:10" (1/3) ... [2024-11-09 10:33:11,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d46a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:33:11, skipping insertion in model container [2024-11-09 10:33:11,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:10" (2/3) ... [2024-11-09 10:33:11,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d46a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:33:11, skipping insertion in model container [2024-11-09 10:33:11,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:33:11" (3/3) ... [2024-11-09 10:33:11,173 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2024-11-09 10:33:11,186 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:33:11,187 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 10:33:11,187 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:33:11,220 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:33:11,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-11-09 10:33:11,277 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-09 10:33:11,278 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:33:11,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-09 10:33:11,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-11-09 10:33:11,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-11-09 10:33:11,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:33:11,302 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;@64f224aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:33:11,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 10:33:11,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:33:11,317 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-09 10:33:11,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:33:11,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:11,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:11,321 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)] === [2024-11-09 10:33:11,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:11,325 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-11-09 10:33:11,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:11,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722972782] [2024-11-09 10:33:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:11,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:11,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722972782] [2024-11-09 10:33:11,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722972782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:11,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:11,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:33:11,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234882375] [2024-11-09 10:33:11,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:11,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:33:11,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:11,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:33:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:33:11,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-11-09 10:33:11,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:11,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:11,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-11-09 10:33:11,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:11,675 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-11-09 10:33:11,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:33:11,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-11-09 10:33:11,682 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-09 10:33:11,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-11-09 10:33:11,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:33:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:33:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-09 10:33:11,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-09 10:33:11,693 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-11-09 10:33:11,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-11-09 10:33:11,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 10:33:11,699 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-09 10:33:11,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-09 10:33:11,703 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-11-09 10:33:11,704 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-09 10:33:11,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:11,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:11,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:11,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:33:11,705 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)] === [2024-11-09 10:33:11,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:11,705 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-11-09 10:33:11,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:11,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282076145] [2024-11-09 10:33:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:11,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:11,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:11,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282076145] [2024-11-09 10:33:11,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282076145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:11,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:11,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:33:11,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156465454] [2024-11-09 10:33:11,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:11,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:33:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:33:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:33:12,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-09 10:33:12,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:12,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:12,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-09 10:33:12,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:12,402 INFO L124 PetriNetUnfolderBase]: 1499/2782 cut-off events. [2024-11-09 10:33:12,403 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:33:12,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5142 conditions, 2782 events. 1499/2782 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 19862 event pairs, 374 based on Foata normal form. 0/2688 useless extension candidates. Maximal degree in co-relation 5136. Up to 818 conditions per place. [2024-11-09 10:33:12,415 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 29 selfloop transitions, 6 changer transitions 55/104 dead transitions. [2024-11-09 10:33:12,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 400 flow [2024-11-09 10:33:12,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:33:12,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:33:12,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 254 transitions. [2024-11-09 10:33:12,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6563307493540051 [2024-11-09 10:33:12,420 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 254 transitions. [2024-11-09 10:33:12,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 104 transitions, 400 flow [2024-11-09 10:33:12,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 104 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:33:12,425 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2024-11-09 10:33:12,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-09 10:33:12,426 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-11-09 10:33:12,426 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2024-11-09 10:33:12,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:12,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:12,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:12,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:33:12,426 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)] === [2024-11-09 10:33:12,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:12,427 INFO L85 PathProgramCache]: Analyzing trace with hash 861097345, now seen corresponding path program 1 times [2024-11-09 10:33:12,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817046371] [2024-11-09 10:33:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:12,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:12,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:12,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817046371] [2024-11-09 10:33:12,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817046371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:12,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:12,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:33:12,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471105754] [2024-11-09 10:33:12,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:12,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:33:12,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:12,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:33:12,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:33:12,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-09 10:33:12,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:12,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:12,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-09 10:33:12,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:12,964 INFO L124 PetriNetUnfolderBase]: 976/1975 cut-off events. [2024-11-09 10:33:12,965 INFO L125 PetriNetUnfolderBase]: For 3016/3021 co-relation queries the response was YES. [2024-11-09 10:33:12,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5652 conditions, 1975 events. 976/1975 cut-off events. For 3016/3021 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13633 event pairs, 150 based on Foata normal form. 60/2020 useless extension candidates. Maximal degree in co-relation 5637. Up to 704 conditions per place. [2024-11-09 10:33:12,981 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 36 selfloop transitions, 10 changer transitions 46/106 dead transitions. [2024-11-09 10:33:12,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 106 transitions, 707 flow [2024-11-09 10:33:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:33:12,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:33:12,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 265 transitions. [2024-11-09 10:33:12,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2024-11-09 10:33:12,984 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 265 transitions. [2024-11-09 10:33:12,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 106 transitions, 707 flow [2024-11-09 10:33:12,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 106 transitions, 613 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-09 10:33:12,995 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 237 flow [2024-11-09 10:33:12,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-11-09 10:33:12,995 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-11-09 10:33:12,996 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 237 flow [2024-11-09 10:33:12,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:12,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:12,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:12,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:33:12,997 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)] === [2024-11-09 10:33:12,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2110605603, now seen corresponding path program 1 times [2024-11-09 10:33:12,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:12,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398975029] [2024-11-09 10:33:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:12,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:13,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:13,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:13,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398975029] [2024-11-09 10:33:13,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398975029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:13,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:13,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:33:13,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357587313] [2024-11-09 10:33:13,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:13,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:33:13,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:33:13,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:33:13,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-09 10:33:13,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:13,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:13,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-09 10:33:13,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:13,408 INFO L124 PetriNetUnfolderBase]: 846/1694 cut-off events. [2024-11-09 10:33:13,408 INFO L125 PetriNetUnfolderBase]: For 4557/4564 co-relation queries the response was YES. [2024-11-09 10:33:13,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5493 conditions, 1694 events. 846/1694 cut-off events. For 4557/4564 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11282 event pairs, 216 based on Foata normal form. 42/1727 useless extension candidates. Maximal degree in co-relation 5471. Up to 662 conditions per place. [2024-11-09 10:33:13,421 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 40 selfloop transitions, 12 changer transitions 32/98 dead transitions. [2024-11-09 10:33:13,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 98 transitions, 679 flow [2024-11-09 10:33:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:33:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:33:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-11-09 10:33:13,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2024-11-09 10:33:13,423 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 237 flow. Second operand 10 states and 256 transitions. [2024-11-09 10:33:13,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 98 transitions, 679 flow [2024-11-09 10:33:13,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 98 transitions, 613 flow, removed 33 selfloop flow, removed 2 redundant places. [2024-11-09 10:33:13,437 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 311 flow [2024-11-09 10:33:13,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2024-11-09 10:33:13,437 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-11-09 10:33:13,438 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 311 flow [2024-11-09 10:33:13,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:13,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:13,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:13,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:33:13,439 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)] === [2024-11-09 10:33:13,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 511833086, now seen corresponding path program 1 times [2024-11-09 10:33:13,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:13,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385661415] [2024-11-09 10:33:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:13,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:13,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:13,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385661415] [2024-11-09 10:33:13,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385661415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:13,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:13,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:33:13,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029883832] [2024-11-09 10:33:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:13,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:33:13,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:33:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:33:13,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-09 10:33:13,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 311 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 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) [2024-11-09 10:33:13,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:13,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-09 10:33:13,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:13,820 INFO L124 PetriNetUnfolderBase]: 926/1875 cut-off events. [2024-11-09 10:33:13,820 INFO L125 PetriNetUnfolderBase]: For 5448/5452 co-relation queries the response was YES. [2024-11-09 10:33:13,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6238 conditions, 1875 events. 926/1875 cut-off events. For 5448/5452 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 13075 event pairs, 131 based on Foata normal form. 64/1904 useless extension candidates. Maximal degree in co-relation 6207. Up to 626 conditions per place. [2024-11-09 10:33:13,832 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 34 selfloop transitions, 9 changer transitions 51/108 dead transitions. [2024-11-09 10:33:13,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 108 transitions, 881 flow [2024-11-09 10:33:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 10:33:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 10:33:13,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 281 transitions. [2024-11-09 10:33:13,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5940803382663847 [2024-11-09 10:33:13,834 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 311 flow. Second operand 11 states and 281 transitions. [2024-11-09 10:33:13,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 108 transitions, 881 flow [2024-11-09 10:33:13,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 819 flow, removed 28 selfloop flow, removed 12 redundant places. [2024-11-09 10:33:13,847 INFO L231 Difference]: Finished difference. Result has 75 places, 42 transitions, 270 flow [2024-11-09 10:33:13,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=270, PETRI_PLACES=75, PETRI_TRANSITIONS=42} [2024-11-09 10:33:13,847 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-11-09 10:33:13,848 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 42 transitions, 270 flow [2024-11-09 10:33:13,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 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) [2024-11-09 10:33:13,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:13,851 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] [2024-11-09 10:33:13,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:33:13,852 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)] === [2024-11-09 10:33:13,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash 549789387, now seen corresponding path program 1 times [2024-11-09 10:33:13,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:13,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061699867] [2024-11-09 10:33:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:13,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:13,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061699867] [2024-11-09 10:33:13,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061699867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:13,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:13,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:33:13,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551904169] [2024-11-09 10:33:13,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:13,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:33:13,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:13,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:33:13,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:33:13,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-09 10:33:13,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 42 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 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) [2024-11-09 10:33:13,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:13,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-09 10:33:13,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:14,096 INFO L124 PetriNetUnfolderBase]: 412/861 cut-off events. [2024-11-09 10:33:14,098 INFO L125 PetriNetUnfolderBase]: For 2164/2170 co-relation queries the response was YES. [2024-11-09 10:33:14,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 861 events. 412/861 cut-off events. For 2164/2170 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4955 event pairs, 102 based on Foata normal form. 20/852 useless extension candidates. Maximal degree in co-relation 2881. Up to 294 conditions per place. [2024-11-09 10:33:14,120 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 7 changer transitions 19/74 dead transitions. [2024-11-09 10:33:14,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 74 transitions, 530 flow [2024-11-09 10:33:14,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:33:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:33:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-11-09 10:33:14,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5813953488372093 [2024-11-09 10:33:14,122 INFO L175 Difference]: Start difference. First operand has 75 places, 42 transitions, 270 flow. Second operand 8 states and 200 transitions. [2024-11-09 10:33:14,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 74 transitions, 530 flow [2024-11-09 10:33:14,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 74 transitions, 473 flow, removed 14 selfloop flow, removed 11 redundant places. [2024-11-09 10:33:14,127 INFO L231 Difference]: Finished difference. Result has 70 places, 42 transitions, 254 flow [2024-11-09 10:33:14,127 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=254, PETRI_PLACES=70, PETRI_TRANSITIONS=42} [2024-11-09 10:33:14,128 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-11-09 10:33:14,129 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 42 transitions, 254 flow [2024-11-09 10:33:14,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 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) [2024-11-09 10:33:14,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:14,129 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] [2024-11-09 10:33:14,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:33:14,130 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)] === [2024-11-09 10:33:14,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:14,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1204596331, now seen corresponding path program 1 times [2024-11-09 10:33:14,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:14,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168742177] [2024-11-09 10:33:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:14,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:14,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168742177] [2024-11-09 10:33:14,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168742177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:14,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:14,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:33:14,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453457644] [2024-11-09 10:33:14,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:14,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:33:14,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:14,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:33:14,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:33:14,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-11-09 10:33:14,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 42 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:14,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-11-09 10:33:14,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:14,352 INFO L124 PetriNetUnfolderBase]: 381/860 cut-off events. [2024-11-09 10:33:14,352 INFO L125 PetriNetUnfolderBase]: For 2153/2252 co-relation queries the response was YES. [2024-11-09 10:33:14,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 860 events. 381/860 cut-off events. For 2153/2252 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5376 event pairs, 156 based on Foata normal form. 33/866 useless extension candidates. Maximal degree in co-relation 2786. Up to 277 conditions per place. [2024-11-09 10:33:14,358 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 5 changer transitions 15/64 dead transitions. [2024-11-09 10:33:14,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 432 flow [2024-11-09 10:33:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:33:14,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:33:14,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-11-09 10:33:14,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201550387596899 [2024-11-09 10:33:14,360 INFO L175 Difference]: Start difference. First operand has 70 places, 42 transitions, 254 flow. Second operand 6 states and 160 transitions. [2024-11-09 10:33:14,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 432 flow [2024-11-09 10:33:14,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 387 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-11-09 10:33:14,364 INFO L231 Difference]: Finished difference. Result has 67 places, 39 transitions, 209 flow [2024-11-09 10:33:14,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=67, PETRI_TRANSITIONS=39} [2024-11-09 10:33:14,365 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-11-09 10:33:14,365 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 39 transitions, 209 flow [2024-11-09 10:33:14,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:14,366 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] [2024-11-09 10:33:14,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:33:14,366 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)] === [2024-11-09 10:33:14,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash -6368503, now seen corresponding path program 2 times [2024-11-09 10:33:14,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:14,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957169375] [2024-11-09 10:33:14,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:14,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:14,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:14,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957169375] [2024-11-09 10:33:14,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957169375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:14,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:14,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:33:14,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433294394] [2024-11-09 10:33:14,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:14,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:33:14,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:14,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:33:14,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:33:14,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-11-09 10:33:14,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 39 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:14,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-11-09 10:33:14,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:14,606 INFO L124 PetriNetUnfolderBase]: 286/655 cut-off events. [2024-11-09 10:33:14,606 INFO L125 PetriNetUnfolderBase]: For 973/994 co-relation queries the response was YES. [2024-11-09 10:33:14,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2013 conditions, 655 events. 286/655 cut-off events. For 973/994 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3900 event pairs, 92 based on Foata normal form. 24/670 useless extension candidates. Maximal degree in co-relation 1995. Up to 183 conditions per place. [2024-11-09 10:33:14,610 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 20 selfloop transitions, 2 changer transitions 25/63 dead transitions. [2024-11-09 10:33:14,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 365 flow [2024-11-09 10:33:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:33:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:33:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-11-09 10:33:14,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6112956810631229 [2024-11-09 10:33:14,612 INFO L175 Difference]: Start difference. First operand has 67 places, 39 transitions, 209 flow. Second operand 7 states and 184 transitions. [2024-11-09 10:33:14,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 365 flow [2024-11-09 10:33:14,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 63 transitions, 326 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-09 10:33:14,615 INFO L231 Difference]: Finished difference. Result has 65 places, 33 transitions, 125 flow [2024-11-09 10:33:14,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=125, PETRI_PLACES=65, PETRI_TRANSITIONS=33} [2024-11-09 10:33:14,616 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-11-09 10:33:14,616 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 33 transitions, 125 flow [2024-11-09 10:33:14,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:14,616 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] [2024-11-09 10:33:14,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:33:14,617 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)] === [2024-11-09 10:33:14,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:14,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1572595045, now seen corresponding path program 3 times [2024-11-09 10:33:14,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:14,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622143645] [2024-11-09 10:33:14,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:14,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:14,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:14,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622143645] [2024-11-09 10:33:14,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622143645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:14,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:14,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:33:14,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098145624] [2024-11-09 10:33:14,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:14,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:33:14,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:14,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:33:14,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:33:14,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-09 10:33:14,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 33 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:14,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-09 10:33:14,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:14,794 INFO L124 PetriNetUnfolderBase]: 370/728 cut-off events. [2024-11-09 10:33:14,794 INFO L125 PetriNetUnfolderBase]: For 421/429 co-relation queries the response was YES. [2024-11-09 10:33:14,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 728 events. 370/728 cut-off events. For 421/429 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3980 event pairs, 78 based on Foata normal form. 27/727 useless extension candidates. Maximal degree in co-relation 1657. Up to 353 conditions per place. [2024-11-09 10:33:14,798 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 24 selfloop transitions, 5 changer transitions 1/46 dead transitions. [2024-11-09 10:33:14,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 46 transitions, 213 flow [2024-11-09 10:33:14,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:33:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:33:14,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-09 10:33:14,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-11-09 10:33:14,799 INFO L175 Difference]: Start difference. First operand has 65 places, 33 transitions, 125 flow. Second operand 4 states and 116 transitions. [2024-11-09 10:33:14,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 46 transitions, 213 flow [2024-11-09 10:33:14,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 185 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-09 10:33:14,801 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 131 flow [2024-11-09 10:33:14,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2024-11-09 10:33:14,802 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 6 predicate places. [2024-11-09 10:33:14,802 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 131 flow [2024-11-09 10:33:14,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:14,803 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] [2024-11-09 10:33:14,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:33:14,803 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)] === [2024-11-09 10:33:14,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:14,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1889347666, now seen corresponding path program 1 times [2024-11-09 10:33:14,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:14,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227751186] [2024-11-09 10:33:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:14,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:14,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227751186] [2024-11-09 10:33:14,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227751186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:14,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:14,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:33:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759675388] [2024-11-09 10:33:14,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:14,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:33:14,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:14,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:33:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:33:14,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-09 10:33:14,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:14,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-09 10:33:14,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:14,953 INFO L124 PetriNetUnfolderBase]: 285/570 cut-off events. [2024-11-09 10:33:14,953 INFO L125 PetriNetUnfolderBase]: For 271/351 co-relation queries the response was YES. [2024-11-09 10:33:14,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 570 events. 285/570 cut-off events. For 271/351 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2753 event pairs, 27 based on Foata normal form. 30/581 useless extension candidates. Maximal degree in co-relation 1404. Up to 245 conditions per place. [2024-11-09 10:33:14,955 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 28 selfloop transitions, 8 changer transitions 1/53 dead transitions. [2024-11-09 10:33:14,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 256 flow [2024-11-09 10:33:14,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:33:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:33:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2024-11-09 10:33:14,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6697674418604651 [2024-11-09 10:33:14,957 INFO L175 Difference]: Start difference. First operand has 53 places, 36 transitions, 131 flow. Second operand 5 states and 144 transitions. [2024-11-09 10:33:14,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 256 flow [2024-11-09 10:33:14,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 246 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 10:33:14,959 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 171 flow [2024-11-09 10:33:14,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-09 10:33:14,960 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-11-09 10:33:14,961 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 171 flow [2024-11-09 10:33:14,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:14,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:14,961 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:14,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 10:33:14,962 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)] === [2024-11-09 10:33:14,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:14,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1227158705, now seen corresponding path program 1 times [2024-11-09 10:33:14,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:14,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704513335] [2024-11-09 10:33:14,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:14,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:15,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:15,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704513335] [2024-11-09 10:33:15,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704513335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:15,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:15,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:33:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697264093] [2024-11-09 10:33:15,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:15,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:33:15,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:15,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:33:15,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:33:15,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-09 10:33:15,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:15,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:15,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-09 10:33:15,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:15,111 INFO L124 PetriNetUnfolderBase]: 162/321 cut-off events. [2024-11-09 10:33:15,113 INFO L125 PetriNetUnfolderBase]: For 362/454 co-relation queries the response was YES. [2024-11-09 10:33:15,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 321 events. 162/321 cut-off events. For 362/454 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1113 event pairs, 6 based on Foata normal form. 28/336 useless extension candidates. Maximal degree in co-relation 883. Up to 84 conditions per place. [2024-11-09 10:33:15,114 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 11 changer transitions 1/54 dead transitions. [2024-11-09 10:33:15,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 283 flow [2024-11-09 10:33:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:33:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:33:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2024-11-09 10:33:15,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-11-09 10:33:15,116 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 171 flow. Second operand 6 states and 166 transitions. [2024-11-09 10:33:15,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 283 flow [2024-11-09 10:33:15,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 54 transitions, 242 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-09 10:33:15,119 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 169 flow [2024-11-09 10:33:15,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-09 10:33:15,120 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-11-09 10:33:15,120 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 169 flow [2024-11-09 10:33:15,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:15,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:33:15,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:15,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 10:33:15,121 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:33:15,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:33:15,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2140280908, now seen corresponding path program 1 times [2024-11-09 10:33:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:33:15,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239223569] [2024-11-09 10:33:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:33:15,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:33:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:33:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:33:15,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:33:15,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239223569] [2024-11-09 10:33:15,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239223569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:33:15,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:33:15,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:33:15,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350192078] [2024-11-09 10:33:15,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:33:15,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:33:15,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:33:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:33:15,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:33:15,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-11-09 10:33:15,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:15,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:33:15,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-11-09 10:33:15,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:33:15,316 INFO L124 PetriNetUnfolderBase]: 123/273 cut-off events. [2024-11-09 10:33:15,317 INFO L125 PetriNetUnfolderBase]: For 202/206 co-relation queries the response was YES. [2024-11-09 10:33:15,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 273 events. 123/273 cut-off events. For 202/206 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1028 event pairs, 28 based on Foata normal form. 8/261 useless extension candidates. Maximal degree in co-relation 688. Up to 113 conditions per place. [2024-11-09 10:33:15,318 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-11-09 10:33:15,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 48 transitions, 251 flow [2024-11-09 10:33:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:33:15,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:33:15,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 151 transitions. [2024-11-09 10:33:15,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5016611295681063 [2024-11-09 10:33:15,319 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 169 flow. Second operand 7 states and 151 transitions. [2024-11-09 10:33:15,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 48 transitions, 251 flow [2024-11-09 10:33:15,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 195 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-09 10:33:15,321 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-11-09 10:33:15,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-11-09 10:33:15,321 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2024-11-09 10:33:15,323 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-11-09 10:33:15,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:33:15,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-09 10:33:15,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-09 10:33:15,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-09 10:33:15,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-09 10:33:15,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-09 10:33:15,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 10:33:15,329 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:33:15,331 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 10:33:15,332 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 10:33:15,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:33:15 BasicIcfg [2024-11-09 10:33:15,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 10:33:15,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 10:33:15,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 10:33:15,338 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 10:33:15,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:33:11" (3/4) ... [2024-11-09 10:33:15,340 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 10:33:15,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 10:33:15,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 10:33:15,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-09 10:33:15,346 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-09 10:33:15,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 10:33:15,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 10:33:15,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 10:33:15,415 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 10:33:15,416 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 10:33:15,416 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 10:33:15,416 INFO L158 Benchmark]: Toolchain (without parser) took 5099.70ms. Allocated memory was 165.7MB in the beginning and 268.4MB in the end (delta: 102.8MB). Free memory was 91.1MB in the beginning and 161.8MB in the end (delta: -70.6MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2024-11-09 10:33:15,416 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:33:15,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.02ms. Allocated memory is still 165.7MB. Free memory was 90.9MB in the beginning and 119.6MB in the end (delta: -28.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-11-09 10:33:15,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.25ms. Allocated memory is still 165.7MB. Free memory was 119.6MB in the beginning and 117.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:33:15,417 INFO L158 Benchmark]: Boogie Preprocessor took 47.95ms. Allocated memory is still 165.7MB. Free memory was 117.5MB in the beginning and 115.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:33:15,417 INFO L158 Benchmark]: RCFGBuilder took 348.59ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 95.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 10:33:15,418 INFO L158 Benchmark]: TraceAbstraction took 4171.31ms. Allocated memory was 165.7MB in the beginning and 268.4MB in the end (delta: 102.8MB). Free memory was 95.2MB in the beginning and 166.0MB in the end (delta: -70.8MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2024-11-09 10:33:15,418 INFO L158 Benchmark]: Witness Printer took 78.07ms. Allocated memory is still 268.4MB. Free memory was 166.0MB in the beginning and 161.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:33:15,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.02ms. Allocated memory is still 165.7MB. Free memory was 90.9MB in the beginning and 119.6MB in the end (delta: -28.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.25ms. Allocated memory is still 165.7MB. Free memory was 119.6MB in the beginning and 117.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.95ms. Allocated memory is still 165.7MB. Free memory was 117.5MB in the beginning and 115.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.59ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 95.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4171.31ms. Allocated memory was 165.7MB in the beginning and 268.4MB in the end (delta: 102.8MB). Free memory was 95.2MB in the beginning and 166.0MB in the end (delta: -70.8MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Witness Printer took 78.07ms. Allocated memory is still 268.4MB. Free memory was 166.0MB in the beginning and 161.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 491 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 448 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1135 IncrementalHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 58 mSDtfsCounter, 1135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=4, InterpolantAutomatonStates: 86, 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, 1.3s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 10:33:15,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE