./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --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/weaver/popl20-counter-determinism.wvr.c -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 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:51:28,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:51:28,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:51:28,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:51:28,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:51:28,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:51:28,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:51:28,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:51:28,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:51:28,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:51:28,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:51:28,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:51:28,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:51:28,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:51:28,340 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:51:28,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:51:28,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:51:28,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:51:28,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:51:28,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:51:28,342 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:51:28,346 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:51:28,346 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:51:28,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:51:28,347 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:51:28,347 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:51:28,347 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:51:28,347 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:51:28,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:51:28,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:51:28,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:51:28,348 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:51:28,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:51:28,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:51:28,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:51:28,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:51:28,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:51:28,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:51:28,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:51:28,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:51:28,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:51:28,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:51:28,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 [2024-11-09 10:51:28,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:51:28,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:51:28,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:51:28,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:51:28,610 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:51:28,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-11-09 10:51:30,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:51:30,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:51:30,208 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-11-09 10:51:30,215 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77878ae38/f808973c3dbc4ddf92e0aa749555ce0f/FLAGf5122fe67 [2024-11-09 10:51:30,229 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77878ae38/f808973c3dbc4ddf92e0aa749555ce0f [2024-11-09 10:51:30,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:51:30,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:51:30,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:51:30,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:51:30,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:51:30,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e80310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30, skipping insertion in model container [2024-11-09 10:51:30,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:51:30,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:51:30,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:51:30,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:51:30,544 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:51:30,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30 WrapperNode [2024-11-09 10:51:30,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:51:30,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:51:30,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:51:30,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:51:30,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,586 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 96 [2024-11-09 10:51:30,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:51:30,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:51:30,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:51:30,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:51:30,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,600 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,613 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 10:51:30,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:51:30,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:51:30,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:51:30,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:51:30,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (1/1) ... [2024-11-09 10:51:30,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:51:30,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:51:30,668 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 10:51:30,670 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 10:51:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:51:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 10:51:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 10:51:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 10:51:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 10:51:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 10:51:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 10:51:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-09 10:51:30,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-09 10:51:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:51:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:51:30,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:51:30,718 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 10:51:30,813 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:51:30,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:51:31,048 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:51:31,048 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:51:31,184 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:51:31,185 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 10:51:31,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:51:31 BoogieIcfgContainer [2024-11-09 10:51:31,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:51:31,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:51:31,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:51:31,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:51:31,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:51:30" (1/3) ... [2024-11-09 10:51:31,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118d5369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:51:31, skipping insertion in model container [2024-11-09 10:51:31,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:51:30" (2/3) ... [2024-11-09 10:51:31,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118d5369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:51:31, skipping insertion in model container [2024-11-09 10:51:31,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:51:31" (3/3) ... [2024-11-09 10:51:31,201 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2024-11-09 10:51:31,216 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:51:31,216 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 10:51:31,216 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:51:31,272 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 10:51:31,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 112 flow [2024-11-09 10:51:31,345 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2024-11-09 10:51:31,346 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 10:51:31,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 38 events. 4/38 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-09 10:51:31,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 112 flow [2024-11-09 10:51:31,354 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 37 transitions, 98 flow [2024-11-09 10:51:31,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:51:31,372 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;@bf9e6db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:51:31,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 10:51:31,391 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:51:31,392 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2024-11-09 10:51:31,392 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 10:51:31,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:31,393 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 10:51:31,393 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:31,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:31,400 INFO L85 PathProgramCache]: Analyzing trace with hash 40613773, now seen corresponding path program 1 times [2024-11-09 10:51:31,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:31,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16670083] [2024-11-09 10:51:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:31,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:31,806 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 10:51:31,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16670083] [2024-11-09 10:51:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16670083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:31,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:31,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:51:31,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065279089] [2024-11-09 10:51:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:31,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:51:31,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:51:31,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:51:31,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-09 10:51:31,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 10:51:31,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:31,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-09 10:51:31,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:32,605 INFO L124 PetriNetUnfolderBase]: 4206/5682 cut-off events. [2024-11-09 10:51:32,606 INFO L125 PetriNetUnfolderBase]: For 465/465 co-relation queries the response was YES. [2024-11-09 10:51:32,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11670 conditions, 5682 events. 4206/5682 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 23972 event pairs, 1080 based on Foata normal form. 2/5293 useless extension candidates. Maximal degree in co-relation 10307. Up to 4714 conditions per place. [2024-11-09 10:51:32,653 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 48 selfloop transitions, 3 changer transitions 2/56 dead transitions. [2024-11-09 10:51:32,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 263 flow [2024-11-09 10:51:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:51:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:51:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-11-09 10:51:32,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-09 10:51:32,668 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 98 flow. Second operand 3 states and 81 transitions. [2024-11-09 10:51:32,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 263 flow [2024-11-09 10:51:32,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 56 transitions, 233 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-09 10:51:32,687 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 101 flow [2024-11-09 10:51:32,689 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2024-11-09 10:51:32,692 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2024-11-09 10:51:32,692 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 101 flow [2024-11-09 10:51:32,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 10:51:32,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:32,692 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:32,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:51:32,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:32,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:32,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1127953092, now seen corresponding path program 1 times [2024-11-09 10:51:32,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:32,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67583530] [2024-11-09 10:51:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:32,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:32,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:32,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67583530] [2024-11-09 10:51:32,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67583530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:32,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:32,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:51:32,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194257647] [2024-11-09 10:51:32,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:32,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:51:32,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:32,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:51:32,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:51:32,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:32,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:32,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:32,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:32,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:33,886 INFO L124 PetriNetUnfolderBase]: 9567/12563 cut-off events. [2024-11-09 10:51:33,886 INFO L125 PetriNetUnfolderBase]: For 1508/1508 co-relation queries the response was YES. [2024-11-09 10:51:33,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27973 conditions, 12563 events. 9567/12563 cut-off events. For 1508/1508 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 59440 event pairs, 3002 based on Foata normal form. 0/11896 useless extension candidates. Maximal degree in co-relation 3413. Up to 6920 conditions per place. [2024-11-09 10:51:33,975 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 94 selfloop transitions, 10 changer transitions 0/106 dead transitions. [2024-11-09 10:51:33,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 106 transitions, 491 flow [2024-11-09 10:51:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:51:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:51:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-11-09 10:51:33,977 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-09 10:51:33,978 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 101 flow. Second operand 5 states and 133 transitions. [2024-11-09 10:51:33,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 106 transitions, 491 flow [2024-11-09 10:51:33,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 106 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:51:33,982 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 161 flow [2024-11-09 10:51:33,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2024-11-09 10:51:33,984 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-11-09 10:51:33,984 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 161 flow [2024-11-09 10:51:33,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:33,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:33,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:33,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:51:33,985 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:33,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:33,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1995278604, now seen corresponding path program 2 times [2024-11-09 10:51:33,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:33,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376045749] [2024-11-09 10:51:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:33,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:34,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:34,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376045749] [2024-11-09 10:51:34,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376045749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:34,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:34,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:51:34,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882819923] [2024-11-09 10:51:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:34,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:51:34,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:34,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:51:34,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:51:34,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:34,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:51:34,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:34,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:34,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:35,680 INFO L124 PetriNetUnfolderBase]: 13384/17529 cut-off events. [2024-11-09 10:51:35,681 INFO L125 PetriNetUnfolderBase]: For 6043/6043 co-relation queries the response was YES. [2024-11-09 10:51:35,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45628 conditions, 17529 events. 13384/17529 cut-off events. For 6043/6043 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 86912 event pairs, 1663 based on Foata normal form. 332/17855 useless extension candidates. Maximal degree in co-relation 25847. Up to 5300 conditions per place. [2024-11-09 10:51:35,786 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 147 selfloop transitions, 13 changer transitions 0/162 dead transitions. [2024-11-09 10:51:35,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 162 transitions, 820 flow [2024-11-09 10:51:35,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:51:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:51:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 197 transitions. [2024-11-09 10:51:35,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6700680272108843 [2024-11-09 10:51:35,791 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 161 flow. Second operand 7 states and 197 transitions. [2024-11-09 10:51:35,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 162 transitions, 820 flow [2024-11-09 10:51:35,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 162 transitions, 820 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 10:51:35,801 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 252 flow [2024-11-09 10:51:35,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=252, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-11-09 10:51:35,803 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 10 predicate places. [2024-11-09 10:51:35,803 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 252 flow [2024-11-09 10:51:35,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:51:35,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:35,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:35,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:51:35,804 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:35,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:35,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1973583774, now seen corresponding path program 3 times [2024-11-09 10:51:35,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:35,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220317929] [2024-11-09 10:51:35,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:35,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:35,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:35,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220317929] [2024-11-09 10:51:35,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220317929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:35,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:35,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:51:35,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529792292] [2024-11-09 10:51:35,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:35,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:51:35,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:35,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:51:35,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:51:35,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:35,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:35,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:35,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:35,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:37,685 INFO L124 PetriNetUnfolderBase]: 19352/25340 cut-off events. [2024-11-09 10:51:37,686 INFO L125 PetriNetUnfolderBase]: For 27689/27689 co-relation queries the response was YES. [2024-11-09 10:51:37,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74150 conditions, 25340 events. 19352/25340 cut-off events. For 27689/27689 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 127540 event pairs, 6316 based on Foata normal form. 62/25390 useless extension candidates. Maximal degree in co-relation 56434. Up to 11589 conditions per place. [2024-11-09 10:51:37,999 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 112 selfloop transitions, 12 changer transitions 0/126 dead transitions. [2024-11-09 10:51:37,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 126 transitions, 769 flow [2024-11-09 10:51:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:51:38,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:51:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-11-09 10:51:38,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-09 10:51:38,001 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 252 flow. Second operand 5 states and 132 transitions. [2024-11-09 10:51:38,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 126 transitions, 769 flow [2024-11-09 10:51:38,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 126 transitions, 756 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 10:51:38,140 INFO L231 Difference]: Finished difference. Result has 62 places, 56 transitions, 320 flow [2024-11-09 10:51:38,140 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2024-11-09 10:51:38,141 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2024-11-09 10:51:38,141 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 320 flow [2024-11-09 10:51:38,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:38,143 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:38,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:38,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:51:38,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:38,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:38,144 INFO L85 PathProgramCache]: Analyzing trace with hash 459858204, now seen corresponding path program 1 times [2024-11-09 10:51:38,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:38,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809933648] [2024-11-09 10:51:38,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:38,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:38,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:38,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809933648] [2024-11-09 10:51:38,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809933648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:38,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:38,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:51:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12755374] [2024-11-09 10:51:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:38,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:51:38,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:51:38,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:51:38,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:38,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 320 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:38,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:38,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:38,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:39,904 INFO L124 PetriNetUnfolderBase]: 20722/27438 cut-off events. [2024-11-09 10:51:39,904 INFO L125 PetriNetUnfolderBase]: For 45582/45984 co-relation queries the response was YES. [2024-11-09 10:51:39,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84697 conditions, 27438 events. 20722/27438 cut-off events. For 45582/45984 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 143808 event pairs, 6131 based on Foata normal form. 0/26037 useless extension candidates. Maximal degree in co-relation 71866. Up to 13895 conditions per place. [2024-11-09 10:51:40,278 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 93 selfloop transitions, 10 changer transitions 15/121 dead transitions. [2024-11-09 10:51:40,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 121 transitions, 795 flow [2024-11-09 10:51:40,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:51:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:51:40,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-09 10:51:40,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2024-11-09 10:51:40,287 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 320 flow. Second operand 5 states and 131 transitions. [2024-11-09 10:51:40,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 121 transitions, 795 flow [2024-11-09 10:51:40,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 121 transitions, 759 flow, removed 12 selfloop flow, removed 1 redundant places. [2024-11-09 10:51:40,457 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 334 flow [2024-11-09 10:51:40,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=334, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2024-11-09 10:51:40,458 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places. [2024-11-09 10:51:40,458 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 334 flow [2024-11-09 10:51:40,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:40,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:40,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:40,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:51:40,459 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:40,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:40,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1370428134, now seen corresponding path program 4 times [2024-11-09 10:51:40,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:40,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334769489] [2024-11-09 10:51:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:40,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:40,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:40,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334769489] [2024-11-09 10:51:40,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334769489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:40,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:40,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:51:40,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466027801] [2024-11-09 10:51:40,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:40,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:51:40,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:40,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:51:40,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:51:40,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:40,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:51:40,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:40,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:40,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:42,287 INFO L124 PetriNetUnfolderBase]: 19864/26164 cut-off events. [2024-11-09 10:51:42,288 INFO L125 PetriNetUnfolderBase]: For 52782/54280 co-relation queries the response was YES. [2024-11-09 10:51:42,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82590 conditions, 26164 events. 19864/26164 cut-off events. For 52782/54280 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 133555 event pairs, 6657 based on Foata normal form. 404/26548 useless extension candidates. Maximal degree in co-relation 61382. Up to 13555 conditions per place. [2024-11-09 10:51:42,442 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 126 selfloop transitions, 19 changer transitions 0/147 dead transitions. [2024-11-09 10:51:42,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 147 transitions, 997 flow [2024-11-09 10:51:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:51:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:51:42,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-11-09 10:51:42,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-09 10:51:42,444 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 334 flow. Second operand 6 states and 161 transitions. [2024-11-09 10:51:42,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 147 transitions, 997 flow [2024-11-09 10:51:42,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 147 transitions, 957 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-09 10:51:42,548 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 459 flow [2024-11-09 10:51:42,548 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=459, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2024-11-09 10:51:42,549 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2024-11-09 10:51:42,549 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 459 flow [2024-11-09 10:51:42,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:51:42,549 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:42,550 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:42,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:51:42,550 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:42,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:42,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1754650076, now seen corresponding path program 2 times [2024-11-09 10:51:42,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:42,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195320204] [2024-11-09 10:51:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:42,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:42,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:42,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:42,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195320204] [2024-11-09 10:51:42,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195320204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:42,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:42,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:51:42,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658523503] [2024-11-09 10:51:42,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:42,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:51:42,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:42,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:51:42,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:51:42,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:42,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 459 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:42,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:42,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:42,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:44,854 INFO L124 PetriNetUnfolderBase]: 25427/33725 cut-off events. [2024-11-09 10:51:44,855 INFO L125 PetriNetUnfolderBase]: For 84731/85203 co-relation queries the response was YES. [2024-11-09 10:51:44,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114024 conditions, 33725 events. 25427/33725 cut-off events. For 84731/85203 co-relation queries the response was YES. Maximal size of possible extension queue 1175. Compared 184114 event pairs, 7856 based on Foata normal form. 44/32011 useless extension candidates. Maximal degree in co-relation 80672. Up to 19107 conditions per place. [2024-11-09 10:51:45,187 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 115 selfloop transitions, 28 changer transitions 1/148 dead transitions. [2024-11-09 10:51:45,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 148 transitions, 1193 flow [2024-11-09 10:51:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:51:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:51:45,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-11-09 10:51:45,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-09 10:51:45,189 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 459 flow. Second operand 5 states and 132 transitions. [2024-11-09 10:51:45,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 148 transitions, 1193 flow [2024-11-09 10:51:45,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 148 transitions, 1143 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-11-09 10:51:45,796 INFO L231 Difference]: Finished difference. Result has 77 places, 79 transitions, 652 flow [2024-11-09 10:51:45,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=652, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2024-11-09 10:51:45,797 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 31 predicate places. [2024-11-09 10:51:45,797 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 652 flow [2024-11-09 10:51:45,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:45,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:45,797 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:45,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:51:45,798 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:45,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash -533777718, now seen corresponding path program 3 times [2024-11-09 10:51:45,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:45,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538680689] [2024-11-09 10:51:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:45,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:45,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:45,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538680689] [2024-11-09 10:51:45,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538680689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:45,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:45,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:51:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365622344] [2024-11-09 10:51:45,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:45,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:51:45,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:45,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:51:45,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:51:45,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:45,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 652 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:45,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:45,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:45,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:48,935 INFO L124 PetriNetUnfolderBase]: 35123/45841 cut-off events. [2024-11-09 10:51:48,936 INFO L125 PetriNetUnfolderBase]: For 135906/136577 co-relation queries the response was YES. [2024-11-09 10:51:49,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171273 conditions, 45841 events. 35123/45841 cut-off events. For 135906/136577 co-relation queries the response was YES. Maximal size of possible extension queue 1466. Compared 244706 event pairs, 13835 based on Foata normal form. 125/45832 useless extension candidates. Maximal degree in co-relation 120255. Up to 28780 conditions per place. [2024-11-09 10:51:49,632 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 149 selfloop transitions, 24 changer transitions 1/178 dead transitions. [2024-11-09 10:51:49,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 178 transitions, 1675 flow [2024-11-09 10:51:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:51:49,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:51:49,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-11-09 10:51:49,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-09 10:51:49,634 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 652 flow. Second operand 5 states and 130 transitions. [2024-11-09 10:51:49,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 178 transitions, 1675 flow [2024-11-09 10:51:49,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 178 transitions, 1639 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-09 10:51:49,913 INFO L231 Difference]: Finished difference. Result has 83 places, 98 transitions, 960 flow [2024-11-09 10:51:49,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=960, PETRI_PLACES=83, PETRI_TRANSITIONS=98} [2024-11-09 10:51:49,914 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 37 predicate places. [2024-11-09 10:51:49,915 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 98 transitions, 960 flow [2024-11-09 10:51:49,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:51:49,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:49,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:49,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:51:49,916 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:49,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:49,916 INFO L85 PathProgramCache]: Analyzing trace with hash -416453794, now seen corresponding path program 5 times [2024-11-09 10:51:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:49,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423538986] [2024-11-09 10:51:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:50,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:50,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423538986] [2024-11-09 10:51:50,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423538986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:50,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:50,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:51:50,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407577375] [2024-11-09 10:51:50,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:50,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:51:50,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:50,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:51:50,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:51:50,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:50,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 98 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:51:50,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:50,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:50,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:53,385 INFO L124 PetriNetUnfolderBase]: 36090/47270 cut-off events. [2024-11-09 10:51:53,385 INFO L125 PetriNetUnfolderBase]: For 173618/176123 co-relation queries the response was YES. [2024-11-09 10:51:53,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184494 conditions, 47270 events. 36090/47270 cut-off events. For 173618/176123 co-relation queries the response was YES. Maximal size of possible extension queue 1645. Compared 264226 event pairs, 10326 based on Foata normal form. 654/47774 useless extension candidates. Maximal degree in co-relation 139143. Up to 25183 conditions per place. [2024-11-09 10:51:53,848 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 142 selfloop transitions, 47 changer transitions 0/191 dead transitions. [2024-11-09 10:51:53,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 191 transitions, 1774 flow [2024-11-09 10:51:53,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:51:53,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:51:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-11-09 10:51:53,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-09 10:51:53,850 INFO L175 Difference]: Start difference. First operand has 83 places, 98 transitions, 960 flow. Second operand 6 states and 165 transitions. [2024-11-09 10:51:53,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 191 transitions, 1774 flow [2024-11-09 10:51:54,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 191 transitions, 1734 flow, removed 20 selfloop flow, removed 0 redundant places. [2024-11-09 10:51:54,803 INFO L231 Difference]: Finished difference. Result has 90 places, 102 transitions, 1106 flow [2024-11-09 10:51:54,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1106, PETRI_PLACES=90, PETRI_TRANSITIONS=102} [2024-11-09 10:51:54,804 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 44 predicate places. [2024-11-09 10:51:54,804 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 102 transitions, 1106 flow [2024-11-09 10:51:54,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:51:54,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:51:54,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:51:54,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:51:54,804 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:51:54,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:51:54,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1640081228, now seen corresponding path program 4 times [2024-11-09 10:51:54,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:51:54,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595861279] [2024-11-09 10:51:54,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:51:54,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:51:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:51:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:51:54,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:51:54,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595861279] [2024-11-09 10:51:54,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595861279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:51:54,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:51:54,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:51:54,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165001278] [2024-11-09 10:51:54,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:51:54,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:51:54,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:51:54,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:51:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:51:54,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:51:54,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 102 transitions, 1106 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:51:54,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:51:54,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:51:54,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:51:59,979 INFO L124 PetriNetUnfolderBase]: 50019/65532 cut-off events. [2024-11-09 10:51:59,979 INFO L125 PetriNetUnfolderBase]: For 301127/303320 co-relation queries the response was YES. [2024-11-09 10:52:00,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259011 conditions, 65532 events. 50019/65532 cut-off events. For 301127/303320 co-relation queries the response was YES. Maximal size of possible extension queue 2357. Compared 379532 event pairs, 5596 based on Foata normal form. 806/66213 useless extension candidates. Maximal degree in co-relation 194085. Up to 27673 conditions per place. [2024-11-09 10:52:00,529 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 257 selfloop transitions, 28 changer transitions 19/309 dead transitions. [2024-11-09 10:52:00,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 309 transitions, 3657 flow [2024-11-09 10:52:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:52:00,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:52:00,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-11-09 10:52:00,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6258503401360545 [2024-11-09 10:52:00,531 INFO L175 Difference]: Start difference. First operand has 90 places, 102 transitions, 1106 flow. Second operand 7 states and 184 transitions. [2024-11-09 10:52:00,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 309 transitions, 3657 flow [2024-11-09 10:52:01,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 309 transitions, 3423 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-09 10:52:01,972 INFO L231 Difference]: Finished difference. Result has 98 places, 118 transitions, 1414 flow [2024-11-09 10:52:01,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1016, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1414, PETRI_PLACES=98, PETRI_TRANSITIONS=118} [2024-11-09 10:52:01,973 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 52 predicate places. [2024-11-09 10:52:01,973 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 118 transitions, 1414 flow [2024-11-09 10:52:01,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:52:01,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:52:01,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:52:01,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 10:52:01,974 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:52:01,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:52:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1574197328, now seen corresponding path program 5 times [2024-11-09 10:52:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:52:01,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827365744] [2024-11-09 10:52:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:52:01,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:52:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:52:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:52:02,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:52:02,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827365744] [2024-11-09 10:52:02,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827365744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:52:02,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:52:02,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:52:02,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048879302] [2024-11-09 10:52:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:52:02,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:52:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:52:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:52:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:52:02,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:52:02,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 118 transitions, 1414 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:52:02,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:52:02,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:52:02,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:52:07,211 INFO L124 PetriNetUnfolderBase]: 48840/65077 cut-off events. [2024-11-09 10:52:07,212 INFO L125 PetriNetUnfolderBase]: For 326941/328126 co-relation queries the response was YES. [2024-11-09 10:52:07,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270334 conditions, 65077 events. 48840/65077 cut-off events. For 326941/328126 co-relation queries the response was YES. Maximal size of possible extension queue 2264. Compared 383751 event pairs, 15474 based on Foata normal form. 194/65137 useless extension candidates. Maximal degree in co-relation 214233. Up to 34038 conditions per place. [2024-11-09 10:52:07,795 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 188 selfloop transitions, 18 changer transitions 7/218 dead transitions. [2024-11-09 10:52:07,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 218 transitions, 2589 flow [2024-11-09 10:52:07,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:52:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:52:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-11-09 10:52:07,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-09 10:52:07,797 INFO L175 Difference]: Start difference. First operand has 98 places, 118 transitions, 1414 flow. Second operand 5 states and 132 transitions. [2024-11-09 10:52:07,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 218 transitions, 2589 flow [2024-11-09 10:52:10,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 218 transitions, 2541 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-09 10:52:10,803 INFO L231 Difference]: Finished difference. Result has 103 places, 120 transitions, 1456 flow [2024-11-09 10:52:10,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1387, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1456, PETRI_PLACES=103, PETRI_TRANSITIONS=120} [2024-11-09 10:52:10,803 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 57 predicate places. [2024-11-09 10:52:10,804 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 120 transitions, 1456 flow [2024-11-09 10:52:10,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:52:10,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:52:10,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:52:10,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 10:52:10,804 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 10:52:10,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:52:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 939926774, now seen corresponding path program 6 times [2024-11-09 10:52:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:52:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316442490] [2024-11-09 10:52:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:52:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:52:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:52:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:52:10,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:52:10,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316442490] [2024-11-09 10:52:10,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316442490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:52:10,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:52:10,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:52:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207930665] [2024-11-09 10:52:10,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:52:10,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:52:10,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:52:10,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:52:10,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:52:10,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 10:52:10,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 120 transitions, 1456 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:52:10,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:52:10,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 10:52:10,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:52:17,030 INFO L124 PetriNetUnfolderBase]: 56414/73960 cut-off events. [2024-11-09 10:52:17,030 INFO L125 PetriNetUnfolderBase]: For 408557/410180 co-relation queries the response was YES. [2024-11-09 10:52:17,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314060 conditions, 73960 events. 56414/73960 cut-off events. For 408557/410180 co-relation queries the response was YES. Maximal size of possible extension queue 2736. Compared 428354 event pairs, 21947 based on Foata normal form. 834/74646 useless extension candidates. Maximal degree in co-relation 253696. Up to 45068 conditions per place. [2024-11-09 10:52:17,713 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 237 selfloop transitions, 24 changer transitions 9/275 dead transitions. [2024-11-09 10:52:17,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 275 transitions, 3688 flow [2024-11-09 10:52:17,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:52:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:52:17,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-09 10:52:17,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-11-09 10:52:17,715 INFO L175 Difference]: Start difference. First operand has 103 places, 120 transitions, 1456 flow. Second operand 5 states and 128 transitions. [2024-11-09 10:52:17,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 275 transitions, 3688 flow