./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy11.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/test-easy11.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 dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:55:08,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:55:08,217 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:55:08,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:55:08,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:55:08,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:55:08,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:55:08,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:55:08,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:55:08,258 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:55:08,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:55:08,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:55:08,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:55:08,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:55:08,261 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:55:08,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:55:08,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:55:08,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:55:08,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:55:08,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:55:08,267 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:55:08,267 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:55:08,267 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:55:08,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:55:08,268 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:55:08,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:55:08,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:55:08,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:55:08,269 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:55:08,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:55:08,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:55:08,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:55:08,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:55:08,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:55:08,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:55:08,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:55:08,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:55:08,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:55:08,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:55:08,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:55:08,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:55:08,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:55:08,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 [2024-11-19 09:55:08,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:55:08,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:55:08,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:55:08,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:55:08,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:55:08,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-11-19 09:55:10,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:55:10,266 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:55:10,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-11-19 09:55:10,273 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4a7087a/971c61e61b4146aeb7379f34da93acbd/FLAG3eb349314 [2024-11-19 09:55:10,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4a7087a/971c61e61b4146aeb7379f34da93acbd [2024-11-19 09:55:10,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:55:10,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:55:10,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:55:10,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:55:10,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:55:10,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a811e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10, skipping insertion in model container [2024-11-19 09:55:10,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:55:10,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:55:10,885 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:55:10,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:55:10,917 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:55:10,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10 WrapperNode [2024-11-19 09:55:10,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:55:10,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:55:10,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:55:10,919 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:55:10,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,953 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2024-11-19 09:55:10,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:55:10,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:55:10,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:55:10,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:55:10,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,978 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]. [2024-11-19 09:55:10,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:10,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:55:10,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:55:10,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:55:10,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:55:10,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (1/1) ... [2024-11-19 09:55:11,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:55:11,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:11,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 09:55:11,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 09:55:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:55:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:55:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:55:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:55:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:55:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:55:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:55:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:55:11,092 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:55:11,195 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:55:11,197 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:55:11,357 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:55:11,358 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:55:11,497 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:55:11,500 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 09:55:11,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:55:11 BoogieIcfgContainer [2024-11-19 09:55:11,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:55:11,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:55:11,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:55:11,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:55:11,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:55:10" (1/3) ... [2024-11-19 09:55:11,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4776b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:55:11, skipping insertion in model container [2024-11-19 09:55:11,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:10" (2/3) ... [2024-11-19 09:55:11,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4776b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:55:11, skipping insertion in model container [2024-11-19 09:55:11,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:55:11" (3/3) ... [2024-11-19 09:55:11,510 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2024-11-19 09:55:11,527 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:55:11,528 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:55:11,528 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:55:11,579 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 09:55:11,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 24 transitions, 62 flow [2024-11-19 09:55:11,647 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-11-19 09:55:11,648 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:55:11,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 2/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2024-11-19 09:55:11,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 24 transitions, 62 flow [2024-11-19 09:55:11,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2024-11-19 09:55:11,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:55:11,684 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;@1af69eef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:55:11,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-19 09:55:11,695 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:55:11,697 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-19 09:55:11,697 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:55:11,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:11,701 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:11,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:11,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:11,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1592784829, now seen corresponding path program 1 times [2024-11-19 09:55:11,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:11,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290298755] [2024-11-19 09:55:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:55:11,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:12,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:12,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:12,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290298755] [2024-11-19 09:55:12,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290298755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:12,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:12,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:12,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724759984] [2024-11-19 09:55:12,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:12,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:12,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:12,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:12,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:12,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:12,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:12,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:12,825 INFO L124 PetriNetUnfolderBase]: 111/201 cut-off events. [2024-11-19 09:55:12,828 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-19 09:55:12,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 201 events. 111/201 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 604 event pairs, 2 based on Foata normal form. 2/175 useless extension candidates. Maximal degree in co-relation 364. Up to 57 conditions per place. [2024-11-19 09:55:12,835 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 40 selfloop transitions, 10 changer transitions 10/61 dead transitions. [2024-11-19 09:55:12,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 61 transitions, 278 flow [2024-11-19 09:55:12,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:12,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:12,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 98 transitions. [2024-11-19 09:55:12,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2024-11-19 09:55:12,855 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 9 states and 98 transitions. [2024-11-19 09:55:12,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 61 transitions, 278 flow [2024-11-19 09:55:12,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:12,864 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 107 flow [2024-11-19 09:55:12,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=107, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2024-11-19 09:55:12,870 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2024-11-19 09:55:12,870 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 107 flow [2024-11-19 09:55:12,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:12,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:12,871 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:12,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:55:12,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:12,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:12,874 INFO L85 PathProgramCache]: Analyzing trace with hash -260763731, now seen corresponding path program 2 times [2024-11-19 09:55:12,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:12,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413469887] [2024-11-19 09:55:12,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:12,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:12,904 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:55:12,905 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:13,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:13,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413469887] [2024-11-19 09:55:13,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413469887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:13,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:13,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826963208] [2024-11-19 09:55:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:13,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:13,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:13,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:13,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:13,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:13,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 107 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:13,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:13,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:13,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:13,496 INFO L124 PetriNetUnfolderBase]: 114/208 cut-off events. [2024-11-19 09:55:13,497 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2024-11-19 09:55:13,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 208 events. 114/208 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 612 event pairs, 14 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 575. Up to 115 conditions per place. [2024-11-19 09:55:13,502 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 34 selfloop transitions, 14 changer transitions 10/59 dead transitions. [2024-11-19 09:55:13,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 336 flow [2024-11-19 09:55:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-11-19 09:55:13,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-19 09:55:13,508 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 107 flow. Second operand 9 states and 92 transitions. [2024-11-19 09:55:13,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 336 flow [2024-11-19 09:55:13,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 324 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 09:55:13,514 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 190 flow [2024-11-19 09:55:13,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2024-11-19 09:55:13,518 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 17 predicate places. [2024-11-19 09:55:13,519 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 190 flow [2024-11-19 09:55:13,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:13,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:13,519 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:13,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:55:13,520 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:13,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:13,520 INFO L85 PathProgramCache]: Analyzing trace with hash 349479617, now seen corresponding path program 3 times [2024-11-19 09:55:13,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:13,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704971253] [2024-11-19 09:55:13,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:13,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:13,540 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 09:55:13,541 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:13,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:13,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704971253] [2024-11-19 09:55:13,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704971253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:13,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:13,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:13,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165705925] [2024-11-19 09:55:13,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:13,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:13,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:13,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:13,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:13,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:13,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 190 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:13,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:13,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:13,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:13,955 INFO L124 PetriNetUnfolderBase]: 119/216 cut-off events. [2024-11-19 09:55:13,955 INFO L125 PetriNetUnfolderBase]: For 200/200 co-relation queries the response was YES. [2024-11-19 09:55:13,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 216 events. 119/216 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 663 event pairs, 10 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 688. Up to 119 conditions per place. [2024-11-19 09:55:13,958 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 39 selfloop transitions, 18 changer transitions 9/67 dead transitions. [2024-11-19 09:55:13,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 67 transitions, 450 flow [2024-11-19 09:55:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:13,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-19 09:55:13,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-11-19 09:55:13,960 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 190 flow. Second operand 9 states and 95 transitions. [2024-11-19 09:55:13,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 67 transitions, 450 flow [2024-11-19 09:55:13,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 67 transitions, 418 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:13,965 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 257 flow [2024-11-19 09:55:13,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=257, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-11-19 09:55:13,966 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-11-19 09:55:13,966 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 257 flow [2024-11-19 09:55:13,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:13,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:13,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:13,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:55:13,967 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:13,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:13,967 INFO L85 PathProgramCache]: Analyzing trace with hash 328360499, now seen corresponding path program 4 times [2024-11-19 09:55:13,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:13,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444343639] [2024-11-19 09:55:13,968 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:13,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:13,977 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:13,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:14,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:14,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444343639] [2024-11-19 09:55:14,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444343639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:14,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:14,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:14,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626412931] [2024-11-19 09:55:14,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:14,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:14,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:14,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:14,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:14,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:14,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 257 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:14,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:14,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:14,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:14,508 INFO L124 PetriNetUnfolderBase]: 194/329 cut-off events. [2024-11-19 09:55:14,509 INFO L125 PetriNetUnfolderBase]: For 621/621 co-relation queries the response was YES. [2024-11-19 09:55:14,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 329 events. 194/329 cut-off events. For 621/621 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1083 event pairs, 29 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 1203. Up to 140 conditions per place. [2024-11-19 09:55:14,516 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 44 selfloop transitions, 35 changer transitions 10/90 dead transitions. [2024-11-19 09:55:14,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 90 transitions, 737 flow [2024-11-19 09:55:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:55:14,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:55:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 98 transitions. [2024-11-19 09:55:14,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2024-11-19 09:55:14,519 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 257 flow. Second operand 8 states and 98 transitions. [2024-11-19 09:55:14,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 90 transitions, 737 flow [2024-11-19 09:55:14,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 90 transitions, 661 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:14,529 INFO L231 Difference]: Finished difference. Result has 53 places, 61 transitions, 490 flow [2024-11-19 09:55:14,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=490, PETRI_PLACES=53, PETRI_TRANSITIONS=61} [2024-11-19 09:55:14,530 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 27 predicate places. [2024-11-19 09:55:14,530 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 61 transitions, 490 flow [2024-11-19 09:55:14,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:14,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:14,531 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:14,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:55:14,531 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:14,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:14,532 INFO L85 PathProgramCache]: Analyzing trace with hash 401277215, now seen corresponding path program 5 times [2024-11-19 09:55:14,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:14,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130413287] [2024-11-19 09:55:14,533 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:14,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:14,540 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:55:14,541 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:14,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:14,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130413287] [2024-11-19 09:55:14,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130413287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:14,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:14,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:14,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064845626] [2024-11-19 09:55:14,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:14,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:14,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:14,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:14,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:14,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 61 transitions, 490 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:14,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:14,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:14,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:14,927 INFO L124 PetriNetUnfolderBase]: 190/328 cut-off events. [2024-11-19 09:55:14,928 INFO L125 PetriNetUnfolderBase]: For 912/912 co-relation queries the response was YES. [2024-11-19 09:55:14,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1398 conditions, 328 events. 190/328 cut-off events. For 912/912 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1148 event pairs, 15 based on Foata normal form. 1/329 useless extension candidates. Maximal degree in co-relation 1377. Up to 176 conditions per place. [2024-11-19 09:55:14,931 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 49 selfloop transitions, 28 changer transitions 12/90 dead transitions. [2024-11-19 09:55:14,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 90 transitions, 815 flow [2024-11-19 09:55:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:14,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-19 09:55:14,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-11-19 09:55:14,933 INFO L175 Difference]: Start difference. First operand has 53 places, 61 transitions, 490 flow. Second operand 9 states and 95 transitions. [2024-11-19 09:55:14,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 90 transitions, 815 flow [2024-11-19 09:55:14,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 90 transitions, 782 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-19 09:55:14,940 INFO L231 Difference]: Finished difference. Result has 60 places, 59 transitions, 499 flow [2024-11-19 09:55:14,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=499, PETRI_PLACES=60, PETRI_TRANSITIONS=59} [2024-11-19 09:55:14,941 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 34 predicate places. [2024-11-19 09:55:14,941 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 59 transitions, 499 flow [2024-11-19 09:55:14,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:14,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:14,942 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:14,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:55:14,942 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:14,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:14,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1312130857, now seen corresponding path program 6 times [2024-11-19 09:55:14,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:14,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590445865] [2024-11-19 09:55:14,943 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:14,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:14,954 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 09:55:14,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:15,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:15,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590445865] [2024-11-19 09:55:15,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590445865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:15,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:15,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:15,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639016609] [2024-11-19 09:55:15,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:15,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:15,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:15,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:15,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:15,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 499 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:15,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:15,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:15,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:15,349 INFO L124 PetriNetUnfolderBase]: 210/356 cut-off events. [2024-11-19 09:55:15,350 INFO L125 PetriNetUnfolderBase]: For 1186/1186 co-relation queries the response was YES. [2024-11-19 09:55:15,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 356 events. 210/356 cut-off events. For 1186/1186 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1232 event pairs, 22 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 1579. Up to 186 conditions per place. [2024-11-19 09:55:15,353 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 48 selfloop transitions, 36 changer transitions 10/95 dead transitions. [2024-11-19 09:55:15,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 95 transitions, 933 flow [2024-11-19 09:55:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:15,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-11-19 09:55:15,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-19 09:55:15,355 INFO L175 Difference]: Start difference. First operand has 60 places, 59 transitions, 499 flow. Second operand 9 states and 96 transitions. [2024-11-19 09:55:15,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 95 transitions, 933 flow [2024-11-19 09:55:15,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 95 transitions, 855 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-19 09:55:15,361 INFO L231 Difference]: Finished difference. Result has 62 places, 70 transitions, 674 flow [2024-11-19 09:55:15,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=674, PETRI_PLACES=62, PETRI_TRANSITIONS=70} [2024-11-19 09:55:15,362 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 36 predicate places. [2024-11-19 09:55:15,363 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 70 transitions, 674 flow [2024-11-19 09:55:15,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:15,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:15,363 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:15,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:55:15,364 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:15,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:15,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1103944267, now seen corresponding path program 7 times [2024-11-19 09:55:15,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:15,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074362955] [2024-11-19 09:55:15,365 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:15,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:15,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:15,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:15,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074362955] [2024-11-19 09:55:15,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074362955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:15,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:15,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:15,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688637335] [2024-11-19 09:55:15,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:15,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:15,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:15,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:15,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:15,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:15,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 674 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:15,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:15,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:15,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:15,756 INFO L124 PetriNetUnfolderBase]: 218/369 cut-off events. [2024-11-19 09:55:15,756 INFO L125 PetriNetUnfolderBase]: For 1558/1558 co-relation queries the response was YES. [2024-11-19 09:55:15,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 369 events. 218/369 cut-off events. For 1558/1558 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1318 event pairs, 18 based on Foata normal form. 1/370 useless extension candidates. Maximal degree in co-relation 1754. Up to 189 conditions per place. [2024-11-19 09:55:15,761 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 58 selfloop transitions, 35 changer transitions 10/104 dead transitions. [2024-11-19 09:55:15,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 1083 flow [2024-11-19 09:55:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:15,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2024-11-19 09:55:15,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2024-11-19 09:55:15,763 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 674 flow. Second operand 9 states and 97 transitions. [2024-11-19 09:55:15,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 1083 flow [2024-11-19 09:55:15,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 1018 flow, removed 17 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:15,771 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 709 flow [2024-11-19 09:55:15,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=709, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2024-11-19 09:55:15,774 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 41 predicate places. [2024-11-19 09:55:15,774 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 709 flow [2024-11-19 09:55:15,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:15,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:15,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:15,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:55:15,775 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:15,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:15,776 INFO L85 PathProgramCache]: Analyzing trace with hash 597598001, now seen corresponding path program 8 times [2024-11-19 09:55:15,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:15,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212384492] [2024-11-19 09:55:15,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:15,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:15,784 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:55:15,784 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:15,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:15,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212384492] [2024-11-19 09:55:15,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212384492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:15,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:15,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:15,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048200178] [2024-11-19 09:55:15,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:15,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:15,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:15,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:15,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:15,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:15,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 709 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:15,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:15,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:15,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:16,144 INFO L124 PetriNetUnfolderBase]: 228/389 cut-off events. [2024-11-19 09:55:16,144 INFO L125 PetriNetUnfolderBase]: For 1863/1863 co-relation queries the response was YES. [2024-11-19 09:55:16,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1911 conditions, 389 events. 228/389 cut-off events. For 1863/1863 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1406 event pairs, 24 based on Foata normal form. 1/390 useless extension candidates. Maximal degree in co-relation 1885. Up to 202 conditions per place. [2024-11-19 09:55:16,147 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 52 selfloop transitions, 39 changer transitions 10/102 dead transitions. [2024-11-19 09:55:16,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 102 transitions, 1096 flow [2024-11-19 09:55:16,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 100 transitions. [2024-11-19 09:55:16,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2024-11-19 09:55:16,149 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 709 flow. Second operand 9 states and 100 transitions. [2024-11-19 09:55:16,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 102 transitions, 1096 flow [2024-11-19 09:55:16,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 1006 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-19 09:55:16,155 INFO L231 Difference]: Finished difference. Result has 70 places, 75 transitions, 770 flow [2024-11-19 09:55:16,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=770, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2024-11-19 09:55:16,156 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 44 predicate places. [2024-11-19 09:55:16,156 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 75 transitions, 770 flow [2024-11-19 09:55:16,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:16,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:16,157 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:16,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:55:16,157 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:16,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:16,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1169207063, now seen corresponding path program 9 times [2024-11-19 09:55:16,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:16,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306615698] [2024-11-19 09:55:16,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:16,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:16,164 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 09:55:16,164 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:16,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:16,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306615698] [2024-11-19 09:55:16,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306615698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:16,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:16,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:16,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717864829] [2024-11-19 09:55:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:16,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:16,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:16,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:16,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:16,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:16,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 75 transitions, 770 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:16,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:16,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:16,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:16,551 INFO L124 PetriNetUnfolderBase]: 234/402 cut-off events. [2024-11-19 09:55:16,552 INFO L125 PetriNetUnfolderBase]: For 2079/2079 co-relation queries the response was YES. [2024-11-19 09:55:16,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 402 events. 234/402 cut-off events. For 2079/2079 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1492 event pairs, 27 based on Foata normal form. 1/403 useless extension candidates. Maximal degree in co-relation 1965. Up to 218 conditions per place. [2024-11-19 09:55:16,556 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 53 selfloop transitions, 38 changer transitions 9/101 dead transitions. [2024-11-19 09:55:16,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 101 transitions, 1109 flow [2024-11-19 09:55:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2024-11-19 09:55:16,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2024-11-19 09:55:16,558 INFO L175 Difference]: Start difference. First operand has 70 places, 75 transitions, 770 flow. Second operand 9 states and 97 transitions. [2024-11-19 09:55:16,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 101 transitions, 1109 flow [2024-11-19 09:55:16,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 101 transitions, 1030 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-19 09:55:16,567 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 802 flow [2024-11-19 09:55:16,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=802, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2024-11-19 09:55:16,569 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 48 predicate places. [2024-11-19 09:55:16,569 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 802 flow [2024-11-19 09:55:16,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:16,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:16,572 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:16,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 09:55:16,573 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:16,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:16,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1847360659, now seen corresponding path program 10 times [2024-11-19 09:55:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623201223] [2024-11-19 09:55:16,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:16,582 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:16,583 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:16,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:16,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623201223] [2024-11-19 09:55:16,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623201223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:16,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:16,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:16,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458336438] [2024-11-19 09:55:16,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:16,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:16,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:16,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:16,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:16,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:16,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 802 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:16,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:16,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:16,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:17,029 INFO L124 PetriNetUnfolderBase]: 314/532 cut-off events. [2024-11-19 09:55:17,030 INFO L125 PetriNetUnfolderBase]: For 3233/3233 co-relation queries the response was YES. [2024-11-19 09:55:17,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2798 conditions, 532 events. 314/532 cut-off events. For 3233/3233 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2149 event pairs, 52 based on Foata normal form. 1/533 useless extension candidates. Maximal degree in co-relation 2769. Up to 259 conditions per place. [2024-11-19 09:55:17,035 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 66 selfloop transitions, 55 changer transitions 7/129 dead transitions. [2024-11-19 09:55:17,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 129 transitions, 1573 flow [2024-11-19 09:55:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:55:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:55:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 99 transitions. [2024-11-19 09:55:17,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-11-19 09:55:17,036 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 802 flow. Second operand 8 states and 99 transitions. [2024-11-19 09:55:17,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 129 transitions, 1573 flow [2024-11-19 09:55:17,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 129 transitions, 1425 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-19 09:55:17,045 INFO L231 Difference]: Finished difference. Result has 77 places, 100 transitions, 1168 flow [2024-11-19 09:55:17,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1168, PETRI_PLACES=77, PETRI_TRANSITIONS=100} [2024-11-19 09:55:17,046 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 51 predicate places. [2024-11-19 09:55:17,046 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 100 transitions, 1168 flow [2024-11-19 09:55:17,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:17,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:17,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:17,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 09:55:17,047 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:17,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash 798755027, now seen corresponding path program 11 times [2024-11-19 09:55:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:17,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415960200] [2024-11-19 09:55:17,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:17,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:17,054 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:55:17,054 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:17,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:17,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415960200] [2024-11-19 09:55:17,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415960200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:17,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:17,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:17,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948056390] [2024-11-19 09:55:17,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:17,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:17,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:17,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:17,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:17,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:17,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 100 transitions, 1168 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:17,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:17,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:17,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:17,409 INFO L124 PetriNetUnfolderBase]: 315/536 cut-off events. [2024-11-19 09:55:17,409 INFO L125 PetriNetUnfolderBase]: For 3076/3076 co-relation queries the response was YES. [2024-11-19 09:55:17,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2884 conditions, 536 events. 315/536 cut-off events. For 3076/3076 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2182 event pairs, 34 based on Foata normal form. 1/537 useless extension candidates. Maximal degree in co-relation 2852. Up to 296 conditions per place. [2024-11-19 09:55:17,414 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 58 selfloop transitions, 54 changer transitions 11/124 dead transitions. [2024-11-19 09:55:17,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 124 transitions, 1554 flow [2024-11-19 09:55:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-11-19 09:55:17,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-19 09:55:17,416 INFO L175 Difference]: Start difference. First operand has 77 places, 100 transitions, 1168 flow. Second operand 9 states and 96 transitions. [2024-11-19 09:55:17,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 124 transitions, 1554 flow [2024-11-19 09:55:17,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 124 transitions, 1502 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 09:55:17,427 INFO L231 Difference]: Finished difference. Result has 85 places, 99 transitions, 1226 flow [2024-11-19 09:55:17,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1226, PETRI_PLACES=85, PETRI_TRANSITIONS=99} [2024-11-19 09:55:17,428 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 59 predicate places. [2024-11-19 09:55:17,428 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 99 transitions, 1226 flow [2024-11-19 09:55:17,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:17,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:17,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:17,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 09:55:17,429 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:17,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1260333259, now seen corresponding path program 12 times [2024-11-19 09:55:17,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:17,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471110553] [2024-11-19 09:55:17,430 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:17,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:17,436 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 09:55:17,437 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:17,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:17,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471110553] [2024-11-19 09:55:17,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471110553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:17,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:17,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:17,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3349094] [2024-11-19 09:55:17,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:17,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:17,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:17,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:17,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:17,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 99 transitions, 1226 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:17,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:17,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:17,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:17,814 INFO L124 PetriNetUnfolderBase]: 303/516 cut-off events. [2024-11-19 09:55:17,814 INFO L125 PetriNetUnfolderBase]: For 3374/3374 co-relation queries the response was YES. [2024-11-19 09:55:17,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2835 conditions, 516 events. 303/516 cut-off events. For 3374/3374 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2045 event pairs, 35 based on Foata normal form. 1/517 useless extension candidates. Maximal degree in co-relation 2801. Up to 276 conditions per place. [2024-11-19 09:55:17,819 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 55 selfloop transitions, 51 changer transitions 13/120 dead transitions. [2024-11-19 09:55:17,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 120 transitions, 1575 flow [2024-11-19 09:55:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:17,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-11-19 09:55:17,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-11-19 09:55:17,821 INFO L175 Difference]: Start difference. First operand has 85 places, 99 transitions, 1226 flow. Second operand 9 states and 94 transitions. [2024-11-19 09:55:17,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 120 transitions, 1575 flow [2024-11-19 09:55:17,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 120 transitions, 1453 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-19 09:55:17,833 INFO L231 Difference]: Finished difference. Result has 85 places, 94 transitions, 1149 flow [2024-11-19 09:55:17,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1149, PETRI_PLACES=85, PETRI_TRANSITIONS=94} [2024-11-19 09:55:17,835 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 59 predicate places. [2024-11-19 09:55:17,835 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 94 transitions, 1149 flow [2024-11-19 09:55:17,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:17,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:17,835 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:17,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 09:55:17,836 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:17,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:17,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1942600641, now seen corresponding path program 13 times [2024-11-19 09:55:17,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:17,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325503583] [2024-11-19 09:55:17,836 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:17,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:17,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:17,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325503583] [2024-11-19 09:55:17,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325503583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:17,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:17,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:17,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407220858] [2024-11-19 09:55:17,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:17,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:17,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:17,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:17,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:17,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 94 transitions, 1149 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:17,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:17,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:17,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:18,184 INFO L124 PetriNetUnfolderBase]: 323/546 cut-off events. [2024-11-19 09:55:18,184 INFO L125 PetriNetUnfolderBase]: For 4043/4043 co-relation queries the response was YES. [2024-11-19 09:55:18,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3011 conditions, 546 events. 323/546 cut-off events. For 4043/4043 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2150 event pairs, 37 based on Foata normal form. 1/547 useless extension candidates. Maximal degree in co-relation 2978. Up to 286 conditions per place. [2024-11-19 09:55:18,189 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 61 selfloop transitions, 56 changer transitions 12/130 dead transitions. [2024-11-19 09:55:18,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 130 transitions, 1746 flow [2024-11-19 09:55:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:18,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-19 09:55:18,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-11-19 09:55:18,190 INFO L175 Difference]: Start difference. First operand has 85 places, 94 transitions, 1149 flow. Second operand 9 states and 95 transitions. [2024-11-19 09:55:18,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 130 transitions, 1746 flow [2024-11-19 09:55:18,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 130 transitions, 1620 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:18,202 INFO L231 Difference]: Finished difference. Result has 88 places, 105 transitions, 1387 flow [2024-11-19 09:55:18,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1039, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1387, PETRI_PLACES=88, PETRI_TRANSITIONS=105} [2024-11-19 09:55:18,203 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 62 predicate places. [2024-11-19 09:55:18,204 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 105 transitions, 1387 flow [2024-11-19 09:55:18,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:18,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:18,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:18,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 09:55:18,204 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:18,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:18,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1407370839, now seen corresponding path program 14 times [2024-11-19 09:55:18,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:18,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461655840] [2024-11-19 09:55:18,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:18,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:18,212 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:55:18,213 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:18,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:18,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461655840] [2024-11-19 09:55:18,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461655840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:18,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:18,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:18,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49643290] [2024-11-19 09:55:18,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:18,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:18,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:18,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:18,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:18,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:18,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 105 transitions, 1387 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:18,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:18,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:18,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:18,596 INFO L124 PetriNetUnfolderBase]: 319/542 cut-off events. [2024-11-19 09:55:18,596 INFO L125 PetriNetUnfolderBase]: For 4700/4700 co-relation queries the response was YES. [2024-11-19 09:55:18,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3161 conditions, 542 events. 319/542 cut-off events. For 4700/4700 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2140 event pairs, 40 based on Foata normal form. 1/543 useless extension candidates. Maximal degree in co-relation 3124. Up to 282 conditions per place. [2024-11-19 09:55:18,601 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 60 selfloop transitions, 57 changer transitions 12/130 dead transitions. [2024-11-19 09:55:18,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 130 transitions, 1840 flow [2024-11-19 09:55:18,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-11-19 09:55:18,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-11-19 09:55:18,603 INFO L175 Difference]: Start difference. First operand has 88 places, 105 transitions, 1387 flow. Second operand 9 states and 94 transitions. [2024-11-19 09:55:18,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 130 transitions, 1840 flow [2024-11-19 09:55:18,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 130 transitions, 1731 flow, removed 33 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:18,618 INFO L231 Difference]: Finished difference. Result has 94 places, 106 transitions, 1459 flow [2024-11-19 09:55:18,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1459, PETRI_PLACES=94, PETRI_TRANSITIONS=106} [2024-11-19 09:55:18,619 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 68 predicate places. [2024-11-19 09:55:18,619 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 106 transitions, 1459 flow [2024-11-19 09:55:18,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:18,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:18,619 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:18,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 09:55:18,620 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:18,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1637833799, now seen corresponding path program 15 times [2024-11-19 09:55:18,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:18,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479945082] [2024-11-19 09:55:18,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:18,627 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 09:55:18,627 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:18,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:18,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479945082] [2024-11-19 09:55:18,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479945082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:18,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:18,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:18,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743945557] [2024-11-19 09:55:18,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:18,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:18,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:18,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:18,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:18,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 106 transitions, 1459 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:18,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:18,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:18,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:19,002 INFO L124 PetriNetUnfolderBase]: 335/568 cut-off events. [2024-11-19 09:55:19,002 INFO L125 PetriNetUnfolderBase]: For 5252/5252 co-relation queries the response was YES. [2024-11-19 09:55:19,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3353 conditions, 568 events. 335/568 cut-off events. For 5252/5252 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2269 event pairs, 41 based on Foata normal form. 1/569 useless extension candidates. Maximal degree in co-relation 3314. Up to 288 conditions per place. [2024-11-19 09:55:19,008 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 63 selfloop transitions, 57 changer transitions 11/132 dead transitions. [2024-11-19 09:55:19,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 132 transitions, 1896 flow [2024-11-19 09:55:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-11-19 09:55:19,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-19 09:55:19,010 INFO L175 Difference]: Start difference. First operand has 94 places, 106 transitions, 1459 flow. Second operand 9 states and 96 transitions. [2024-11-19 09:55:19,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 132 transitions, 1896 flow [2024-11-19 09:55:19,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 132 transitions, 1789 flow, removed 13 selfloop flow, removed 5 redundant places. [2024-11-19 09:55:19,025 INFO L231 Difference]: Finished difference. Result has 98 places, 107 transitions, 1501 flow [2024-11-19 09:55:19,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1356, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1501, PETRI_PLACES=98, PETRI_TRANSITIONS=107} [2024-11-19 09:55:19,026 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 72 predicate places. [2024-11-19 09:55:19,026 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 107 transitions, 1501 flow [2024-11-19 09:55:19,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:19,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:19,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:19,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 09:55:19,027 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:19,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1555491421, now seen corresponding path program 16 times [2024-11-19 09:55:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:19,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140279842] [2024-11-19 09:55:19,028 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:19,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:19,034 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:19,034 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:19,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:19,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140279842] [2024-11-19 09:55:19,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140279842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:19,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:19,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:19,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469120092] [2024-11-19 09:55:19,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:19,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:19,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:19,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:19,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:19,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 107 transitions, 1501 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:19,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:19,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:19,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:19,410 INFO L124 PetriNetUnfolderBase]: 343/586 cut-off events. [2024-11-19 09:55:19,410 INFO L125 PetriNetUnfolderBase]: For 5552/5552 co-relation queries the response was YES. [2024-11-19 09:55:19,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3483 conditions, 586 events. 343/586 cut-off events. For 5552/5552 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2446 event pairs, 58 based on Foata normal form. 1/587 useless extension candidates. Maximal degree in co-relation 3443. Up to 244 conditions per place. [2024-11-19 09:55:19,416 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 71 selfloop transitions, 56 changer transitions 11/139 dead transitions. [2024-11-19 09:55:19,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 139 transitions, 2037 flow [2024-11-19 09:55:19,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:19,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2024-11-19 09:55:19,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2024-11-19 09:55:19,418 INFO L175 Difference]: Start difference. First operand has 98 places, 107 transitions, 1501 flow. Second operand 9 states and 97 transitions. [2024-11-19 09:55:19,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 139 transitions, 2037 flow [2024-11-19 09:55:19,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 139 transitions, 1900 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-11-19 09:55:19,437 INFO L231 Difference]: Finished difference. Result has 102 places, 111 transitions, 1578 flow [2024-11-19 09:55:19,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1578, PETRI_PLACES=102, PETRI_TRANSITIONS=111} [2024-11-19 09:55:19,438 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 76 predicate places. [2024-11-19 09:55:19,438 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 1578 flow [2024-11-19 09:55:19,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:19,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:19,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:19,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 09:55:19,439 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:19,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1552865645, now seen corresponding path program 17 times [2024-11-19 09:55:19,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:19,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111657414] [2024-11-19 09:55:19,440 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:19,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:19,446 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:55:19,446 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:19,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:19,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111657414] [2024-11-19 09:55:19,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111657414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:19,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:19,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 09:55:19,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002609065] [2024-11-19 09:55:19,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:19,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:19,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:19,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:19,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:55:19,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:19,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 111 transitions, 1578 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:19,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:19,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:19,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:19,806 INFO L124 PetriNetUnfolderBase]: 362/619 cut-off events. [2024-11-19 09:55:19,806 INFO L125 PetriNetUnfolderBase]: For 6198/6198 co-relation queries the response was YES. [2024-11-19 09:55:19,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3716 conditions, 619 events. 362/619 cut-off events. For 6198/6198 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2585 event pairs, 41 based on Foata normal form. 1/620 useless extension candidates. Maximal degree in co-relation 3673. Up to 344 conditions per place. [2024-11-19 09:55:19,812 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 76 selfloop transitions, 52 changer transitions 10/139 dead transitions. [2024-11-19 09:55:19,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 139 transitions, 2106 flow [2024-11-19 09:55:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-19 09:55:19,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2024-11-19 09:55:19,814 INFO L175 Difference]: Start difference. First operand has 102 places, 111 transitions, 1578 flow. Second operand 9 states and 93 transitions. [2024-11-19 09:55:19,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 139 transitions, 2106 flow [2024-11-19 09:55:19,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 139 transitions, 2003 flow, removed 21 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:19,833 INFO L231 Difference]: Finished difference. Result has 107 places, 113 transitions, 1633 flow [2024-11-19 09:55:19,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1482, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1633, PETRI_PLACES=107, PETRI_TRANSITIONS=113} [2024-11-19 09:55:19,834 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 81 predicate places. [2024-11-19 09:55:19,834 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 113 transitions, 1633 flow [2024-11-19 09:55:19,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:19,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:19,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:19,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 09:55:19,835 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:19,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:19,835 INFO L85 PathProgramCache]: Analyzing trace with hash 545725623, now seen corresponding path program 1 times [2024-11-19 09:55:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:19,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149131775] [2024-11-19 09:55:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:55:19,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:19,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:19,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149131775] [2024-11-19 09:55:19,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149131775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039517364] [2024-11-19 09:55:19,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:55:19,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:19,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:19,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:19,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:55:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:19,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 09:55:19,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:19,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:19,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:20,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039517364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:20,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:20,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-11-19 09:55:20,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322324410] [2024-11-19 09:55:20,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:20,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:55:20,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:20,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:55:20,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:55:20,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:20,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 113 transitions, 1633 flow. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:20,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:20,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:20,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:20,189 INFO L124 PetriNetUnfolderBase]: 336/617 cut-off events. [2024-11-19 09:55:20,190 INFO L125 PetriNetUnfolderBase]: For 6664/6664 co-relation queries the response was YES. [2024-11-19 09:55:20,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3699 conditions, 617 events. 336/617 cut-off events. For 6664/6664 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2887 event pairs, 33 based on Foata normal form. 13/628 useless extension candidates. Maximal degree in co-relation 3651. Up to 251 conditions per place. [2024-11-19 09:55:20,198 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 70 selfloop transitions, 32 changer transitions 1/140 dead transitions. [2024-11-19 09:55:20,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 140 transitions, 2046 flow [2024-11-19 09:55:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:55:20,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:55:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2024-11-19 09:55:20,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-19 09:55:20,200 INFO L175 Difference]: Start difference. First operand has 107 places, 113 transitions, 1633 flow. Second operand 5 states and 73 transitions. [2024-11-19 09:55:20,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 140 transitions, 2046 flow [2024-11-19 09:55:20,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 140 transitions, 1928 flow, removed 21 selfloop flow, removed 7 redundant places. [2024-11-19 09:55:20,233 INFO L231 Difference]: Finished difference. Result has 105 places, 113 transitions, 1621 flow [2024-11-19 09:55:20,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1439, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1621, PETRI_PLACES=105, PETRI_TRANSITIONS=113} [2024-11-19 09:55:20,233 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 79 predicate places. [2024-11-19 09:55:20,234 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 113 transitions, 1621 flow [2024-11-19 09:55:20,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:20,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:20,234 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:20,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:20,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 09:55:20,439 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:20,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash -320042224, now seen corresponding path program 1 times [2024-11-19 09:55:20,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:20,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000569226] [2024-11-19 09:55:20,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:55:20,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:20,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:20,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000569226] [2024-11-19 09:55:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000569226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:20,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:20,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108912345] [2024-11-19 09:55:20,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:20,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:20,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:20,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:20,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:20,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:20,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 113 transitions, 1621 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:20,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:20,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:20,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:20,649 INFO L124 PetriNetUnfolderBase]: 321/599 cut-off events. [2024-11-19 09:55:20,649 INFO L125 PetriNetUnfolderBase]: For 7745/7745 co-relation queries the response was YES. [2024-11-19 09:55:20,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 599 events. 321/599 cut-off events. For 7745/7745 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2839 event pairs, 37 based on Foata normal form. 12/606 useless extension candidates. Maximal degree in co-relation 3380. Up to 148 conditions per place. [2024-11-19 09:55:20,656 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 59 selfloop transitions, 40 changer transitions 6/140 dead transitions. [2024-11-19 09:55:20,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 140 transitions, 2053 flow [2024-11-19 09:55:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:55:20,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:55:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2024-11-19 09:55:20,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-19 09:55:20,658 INFO L175 Difference]: Start difference. First operand has 105 places, 113 transitions, 1621 flow. Second operand 7 states and 91 transitions. [2024-11-19 09:55:20,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 140 transitions, 2053 flow [2024-11-19 09:55:20,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 140 transitions, 2028 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-19 09:55:20,680 INFO L231 Difference]: Finished difference. Result has 110 places, 113 transitions, 1748 flow [2024-11-19 09:55:20,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1568, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1748, PETRI_PLACES=110, PETRI_TRANSITIONS=113} [2024-11-19 09:55:20,681 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 84 predicate places. [2024-11-19 09:55:20,681 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 113 transitions, 1748 flow [2024-11-19 09:55:20,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:20,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:20,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:20,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 09:55:20,682 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:20,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash -506365582, now seen corresponding path program 2 times [2024-11-19 09:55:20,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123558259] [2024-11-19 09:55:20,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:20,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:20,689 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:20,690 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:20,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:20,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123558259] [2024-11-19 09:55:20,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123558259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:20,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:20,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:20,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738214902] [2024-11-19 09:55:20,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:20,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:20,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:20,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:20,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:20,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:20,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 113 transitions, 1748 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:20,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:20,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:20,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:20,886 INFO L124 PetriNetUnfolderBase]: 342/635 cut-off events. [2024-11-19 09:55:20,886 INFO L125 PetriNetUnfolderBase]: For 9653/9653 co-relation queries the response was YES. [2024-11-19 09:55:20,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4217 conditions, 635 events. 342/635 cut-off events. For 9653/9653 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3005 event pairs, 74 based on Foata normal form. 8/634 useless extension candidates. Maximal degree in co-relation 3898. Up to 286 conditions per place. [2024-11-19 09:55:20,917 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 75 selfloop transitions, 29 changer transitions 0/139 dead transitions. [2024-11-19 09:55:20,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 139 transitions, 2183 flow [2024-11-19 09:55:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:55:20,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:55:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-11-19 09:55:20,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2024-11-19 09:55:20,919 INFO L175 Difference]: Start difference. First operand has 110 places, 113 transitions, 1748 flow. Second operand 5 states and 77 transitions. [2024-11-19 09:55:20,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 139 transitions, 2183 flow [2024-11-19 09:55:20,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 139 transitions, 2008 flow, removed 40 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:20,943 INFO L231 Difference]: Finished difference. Result has 111 places, 116 transitions, 1732 flow [2024-11-19 09:55:20,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1732, PETRI_PLACES=111, PETRI_TRANSITIONS=116} [2024-11-19 09:55:20,944 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 85 predicate places. [2024-11-19 09:55:20,944 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 116 transitions, 1732 flow [2024-11-19 09:55:20,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:20,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:20,945 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:20,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 09:55:20,946 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:20,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:20,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1846150637, now seen corresponding path program 2 times [2024-11-19 09:55:20,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:20,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326996511] [2024-11-19 09:55:20,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:20,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:20,954 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:20,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:20,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326996511] [2024-11-19 09:55:20,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326996511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750061518] [2024-11-19 09:55:20,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:20,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:20,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:20,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:20,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:55:21,044 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:21,044 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:21,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 09:55:21,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:21,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:21,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750061518] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:21,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 09:55:21,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2024-11-19 09:55:21,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829430546] [2024-11-19 09:55:21,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:21,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:21,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:21,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:21,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:55:21,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:21,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 116 transitions, 1732 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:21,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:21,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:21,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:21,277 INFO L124 PetriNetUnfolderBase]: 425/826 cut-off events. [2024-11-19 09:55:21,278 INFO L125 PetriNetUnfolderBase]: For 9936/9939 co-relation queries the response was YES. [2024-11-19 09:55:21,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5019 conditions, 826 events. 425/826 cut-off events. For 9936/9939 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4361 event pairs, 26 based on Foata normal form. 12/833 useless extension candidates. Maximal degree in co-relation 4879. Up to 378 conditions per place. [2024-11-19 09:55:21,290 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 74 selfloop transitions, 43 changer transitions 0/152 dead transitions. [2024-11-19 09:55:21,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 152 transitions, 2325 flow [2024-11-19 09:55:21,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:55:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:55:21,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2024-11-19 09:55:21,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-19 09:55:21,292 INFO L175 Difference]: Start difference. First operand has 111 places, 116 transitions, 1732 flow. Second operand 5 states and 76 transitions. [2024-11-19 09:55:21,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 152 transitions, 2325 flow [2024-11-19 09:55:21,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 152 transitions, 2286 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-19 09:55:21,321 INFO L231 Difference]: Finished difference. Result has 117 places, 125 transitions, 2015 flow [2024-11-19 09:55:21,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1693, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2015, PETRI_PLACES=117, PETRI_TRANSITIONS=125} [2024-11-19 09:55:21,322 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 91 predicate places. [2024-11-19 09:55:21,322 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 125 transitions, 2015 flow [2024-11-19 09:55:21,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:21,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:21,323 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:21,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 09:55:21,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-19 09:55:21,524 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:21,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:21,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2120643900, now seen corresponding path program 3 times [2024-11-19 09:55:21,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:21,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94506893] [2024-11-19 09:55:21,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:21,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:21,535 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:55:21,538 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:21,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94506893] [2024-11-19 09:55:21,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94506893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:21,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:21,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:21,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566347904] [2024-11-19 09:55:21,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:21,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:21,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:21,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:21,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:21,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 125 transitions, 2015 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:21,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:21,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:21,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:21,822 INFO L124 PetriNetUnfolderBase]: 432/847 cut-off events. [2024-11-19 09:55:21,823 INFO L125 PetriNetUnfolderBase]: For 12512/12516 co-relation queries the response was YES. [2024-11-19 09:55:21,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5486 conditions, 847 events. 432/847 cut-off events. For 12512/12516 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4485 event pairs, 46 based on Foata normal form. 11/856 useless extension candidates. Maximal degree in co-relation 5323. Up to 192 conditions per place. [2024-11-19 09:55:21,834 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 82 selfloop transitions, 38 changer transitions 5/159 dead transitions. [2024-11-19 09:55:21,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 159 transitions, 2536 flow [2024-11-19 09:55:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:55:21,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:55:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 107 transitions. [2024-11-19 09:55:21,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5572916666666666 [2024-11-19 09:55:21,837 INFO L175 Difference]: Start difference. First operand has 117 places, 125 transitions, 2015 flow. Second operand 8 states and 107 transitions. [2024-11-19 09:55:21,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 159 transitions, 2536 flow [2024-11-19 09:55:21,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 159 transitions, 2482 flow, removed 20 selfloop flow, removed 3 redundant places. [2024-11-19 09:55:21,872 INFO L231 Difference]: Finished difference. Result has 122 places, 123 transitions, 2030 flow [2024-11-19 09:55:21,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2030, PETRI_PLACES=122, PETRI_TRANSITIONS=123} [2024-11-19 09:55:21,874 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 96 predicate places. [2024-11-19 09:55:21,874 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 123 transitions, 2030 flow [2024-11-19 09:55:21,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:21,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:21,874 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:21,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 09:55:21,875 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:21,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:21,875 INFO L85 PathProgramCache]: Analyzing trace with hash -258890587, now seen corresponding path program 3 times [2024-11-19 09:55:21,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:21,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069624236] [2024-11-19 09:55:21,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:21,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:21,882 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:55:21,883 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:21,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:21,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069624236] [2024-11-19 09:55:21,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069624236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:21,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:21,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:21,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639207870] [2024-11-19 09:55:21,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:21,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:21,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:21,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:21,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:21,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:21,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 2030 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:21,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:21,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:21,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:22,092 INFO L124 PetriNetUnfolderBase]: 390/756 cut-off events. [2024-11-19 09:55:22,093 INFO L125 PetriNetUnfolderBase]: For 11639/11644 co-relation queries the response was YES. [2024-11-19 09:55:22,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5103 conditions, 756 events. 390/756 cut-off events. For 11639/11644 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3899 event pairs, 22 based on Foata normal form. 9/758 useless extension candidates. Maximal degree in co-relation 4933. Up to 211 conditions per place. [2024-11-19 09:55:22,101 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 80 selfloop transitions, 33 changer transitions 2/147 dead transitions. [2024-11-19 09:55:22,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 147 transitions, 2531 flow [2024-11-19 09:55:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:55:22,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:55:22,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 80 transitions. [2024-11-19 09:55:22,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-19 09:55:22,102 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 2030 flow. Second operand 6 states and 80 transitions. [2024-11-19 09:55:22,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 147 transitions, 2531 flow [2024-11-19 09:55:22,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 147 transitions, 2417 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:22,133 INFO L231 Difference]: Finished difference. Result has 122 places, 119 transitions, 1948 flow [2024-11-19 09:55:22,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1884, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1948, PETRI_PLACES=122, PETRI_TRANSITIONS=119} [2024-11-19 09:55:22,134 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 96 predicate places. [2024-11-19 09:55:22,134 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 119 transitions, 1948 flow [2024-11-19 09:55:22,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:22,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:22,135 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:22,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 09:55:22,135 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:22,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:22,135 INFO L85 PathProgramCache]: Analyzing trace with hash -848747458, now seen corresponding path program 4 times [2024-11-19 09:55:22,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:22,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332449537] [2024-11-19 09:55:22,136 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:22,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:22,141 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:22,142 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:22,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:22,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332449537] [2024-11-19 09:55:22,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332449537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:22,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:22,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:22,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242044450] [2024-11-19 09:55:22,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:22,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:22,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:22,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:22,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:22,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 119 transitions, 1948 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:22,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:22,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:22,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:22,373 INFO L124 PetriNetUnfolderBase]: 443/878 cut-off events. [2024-11-19 09:55:22,374 INFO L125 PetriNetUnfolderBase]: For 13217/13221 co-relation queries the response was YES. [2024-11-19 09:55:22,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5579 conditions, 878 events. 443/878 cut-off events. For 13217/13221 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4718 event pairs, 124 based on Foata normal form. 10/875 useless extension candidates. Maximal degree in co-relation 4784. Up to 436 conditions per place. [2024-11-19 09:55:22,383 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 80 selfloop transitions, 38 changer transitions 2/152 dead transitions. [2024-11-19 09:55:22,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 152 transitions, 2551 flow [2024-11-19 09:55:22,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:55:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:55:22,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2024-11-19 09:55:22,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-19 09:55:22,384 INFO L175 Difference]: Start difference. First operand has 122 places, 119 transitions, 1948 flow. Second operand 5 states and 75 transitions. [2024-11-19 09:55:22,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 152 transitions, 2551 flow [2024-11-19 09:55:22,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 152 transitions, 2488 flow, removed 22 selfloop flow, removed 3 redundant places. [2024-11-19 09:55:22,414 INFO L231 Difference]: Finished difference. Result has 123 places, 125 transitions, 2137 flow [2024-11-19 09:55:22,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1899, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2137, PETRI_PLACES=123, PETRI_TRANSITIONS=125} [2024-11-19 09:55:22,415 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 97 predicate places. [2024-11-19 09:55:22,415 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 125 transitions, 2137 flow [2024-11-19 09:55:22,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:22,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:22,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:22,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 09:55:22,416 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:22,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash 869435242, now seen corresponding path program 5 times [2024-11-19 09:55:22,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:22,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348593127] [2024-11-19 09:55:22,417 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:22,423 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:22,423 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:22,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:22,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348593127] [2024-11-19 09:55:22,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348593127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:22,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128095106] [2024-11-19 09:55:22,449 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:22,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:22,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:22,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:22,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 09:55:22,501 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:22,501 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:22,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 09:55:22,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:22,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:22,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128095106] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:22,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 09:55:22,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 6 [2024-11-19 09:55:22,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906339935] [2024-11-19 09:55:22,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:22,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:22,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:22,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:22,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:55:22,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:22,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 125 transitions, 2137 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:22,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:22,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:22,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:22,698 INFO L124 PetriNetUnfolderBase]: 365/721 cut-off events. [2024-11-19 09:55:22,698 INFO L125 PetriNetUnfolderBase]: For 11725/11729 co-relation queries the response was YES. [2024-11-19 09:55:22,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4870 conditions, 721 events. 365/721 cut-off events. For 11725/11729 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3674 event pairs, 36 based on Foata normal form. 16/726 useless extension candidates. Maximal degree in co-relation 4326. Up to 314 conditions per place. [2024-11-19 09:55:22,706 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 69 selfloop transitions, 36 changer transitions 3/135 dead transitions. [2024-11-19 09:55:22,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 135 transitions, 2404 flow [2024-11-19 09:55:22,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:55:22,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:55:22,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions. [2024-11-19 09:55:22,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-11-19 09:55:22,707 INFO L175 Difference]: Start difference. First operand has 123 places, 125 transitions, 2137 flow. Second operand 5 states and 69 transitions. [2024-11-19 09:55:22,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 135 transitions, 2404 flow [2024-11-19 09:55:22,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 135 transitions, 2344 flow, removed 17 selfloop flow, removed 2 redundant places. [2024-11-19 09:55:22,738 INFO L231 Difference]: Finished difference. Result has 124 places, 112 transitions, 1940 flow [2024-11-19 09:55:22,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1906, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1940, PETRI_PLACES=124, PETRI_TRANSITIONS=112} [2024-11-19 09:55:22,738 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 98 predicate places. [2024-11-19 09:55:22,738 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 112 transitions, 1940 flow [2024-11-19 09:55:22,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:22,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:22,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:22,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 09:55:22,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:22,940 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:22,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:22,940 INFO L85 PathProgramCache]: Analyzing trace with hash 176730273, now seen corresponding path program 4 times [2024-11-19 09:55:22,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:22,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102280408] [2024-11-19 09:55:22,941 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:22,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:22,946 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:22,946 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:22,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:22,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:22,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102280408] [2024-11-19 09:55:22,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102280408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:22,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:22,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:22,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080375903] [2024-11-19 09:55:22,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:22,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:22,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:22,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:22,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:22,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:22,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 112 transitions, 1940 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:22,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:22,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:22,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:23,151 INFO L124 PetriNetUnfolderBase]: 331/647 cut-off events. [2024-11-19 09:55:23,152 INFO L125 PetriNetUnfolderBase]: For 10426/10428 co-relation queries the response was YES. [2024-11-19 09:55:23,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4413 conditions, 647 events. 331/647 cut-off events. For 10426/10428 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3192 event pairs, 94 based on Foata normal form. 11/649 useless extension candidates. Maximal degree in co-relation 3998. Up to 386 conditions per place. [2024-11-19 09:55:23,158 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 68 selfloop transitions, 36 changer transitions 0/131 dead transitions. [2024-11-19 09:55:23,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 2282 flow [2024-11-19 09:55:23,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:55:23,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:55:23,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2024-11-19 09:55:23,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-19 09:55:23,160 INFO L175 Difference]: Start difference. First operand has 124 places, 112 transitions, 1940 flow. Second operand 5 states and 73 transitions. [2024-11-19 09:55:23,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 2282 flow [2024-11-19 09:55:23,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 2212 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:23,188 INFO L231 Difference]: Finished difference. Result has 124 places, 113 transitions, 1974 flow [2024-11-19 09:55:23,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1974, PETRI_PLACES=124, PETRI_TRANSITIONS=113} [2024-11-19 09:55:23,190 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 98 predicate places. [2024-11-19 09:55:23,190 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 113 transitions, 1974 flow [2024-11-19 09:55:23,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:23,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:23,190 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:23,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 09:55:23,191 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:23,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1357244782, now seen corresponding path program 6 times [2024-11-19 09:55:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:23,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836509780] [2024-11-19 09:55:23,192 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:23,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:23,199 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:23,199 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:23,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:23,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836509780] [2024-11-19 09:55:23,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836509780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:23,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:23,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:23,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699511133] [2024-11-19 09:55:23,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:23,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:23,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:23,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:23,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 113 transitions, 1974 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:23,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:23,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:23,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:23,391 INFO L124 PetriNetUnfolderBase]: 294/573 cut-off events. [2024-11-19 09:55:23,392 INFO L125 PetriNetUnfolderBase]: For 9101/9103 co-relation queries the response was YES. [2024-11-19 09:55:23,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4039 conditions, 573 events. 294/573 cut-off events. For 9101/9103 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2676 event pairs, 22 based on Foata normal form. 9/578 useless extension candidates. Maximal degree in co-relation 3792. Up to 172 conditions per place. [2024-11-19 09:55:23,398 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 74 selfloop transitions, 27 changer transitions 2/125 dead transitions. [2024-11-19 09:55:23,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 125 transitions, 2240 flow [2024-11-19 09:55:23,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:55:23,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:55:23,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2024-11-19 09:55:23,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-19 09:55:23,399 INFO L175 Difference]: Start difference. First operand has 124 places, 113 transitions, 1974 flow. Second operand 6 states and 78 transitions. [2024-11-19 09:55:23,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 125 transitions, 2240 flow [2024-11-19 09:55:23,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 125 transitions, 2130 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-19 09:55:23,425 INFO L231 Difference]: Finished difference. Result has 124 places, 103 transitions, 1753 flow [2024-11-19 09:55:23,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1745, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1753, PETRI_PLACES=124, PETRI_TRANSITIONS=103} [2024-11-19 09:55:23,425 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 98 predicate places. [2024-11-19 09:55:23,426 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 103 transitions, 1753 flow [2024-11-19 09:55:23,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:23,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:23,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:23,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 09:55:23,426 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:23,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash 858332049, now seen corresponding path program 5 times [2024-11-19 09:55:23,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:23,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841826386] [2024-11-19 09:55:23,427 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:23,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:23,434 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:23,434 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:23,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:23,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841826386] [2024-11-19 09:55:23,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841826386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:23,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:23,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:23,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836171375] [2024-11-19 09:55:23,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:23,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:23,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:23,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:23,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 103 transitions, 1753 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:23,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:23,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:23,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:23,651 INFO L124 PetriNetUnfolderBase]: 280/553 cut-off events. [2024-11-19 09:55:23,651 INFO L125 PetriNetUnfolderBase]: For 8653/8655 co-relation queries the response was YES. [2024-11-19 09:55:23,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3814 conditions, 553 events. 280/553 cut-off events. For 8653/8655 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2591 event pairs, 46 based on Foata normal form. 12/561 useless extension candidates. Maximal degree in co-relation 3406. Up to 172 conditions per place. [2024-11-19 09:55:23,656 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 64 selfloop transitions, 33 changer transitions 5/122 dead transitions. [2024-11-19 09:55:23,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 122 transitions, 2087 flow [2024-11-19 09:55:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:55:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:55:23,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions. [2024-11-19 09:55:23,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2024-11-19 09:55:23,658 INFO L175 Difference]: Start difference. First operand has 124 places, 103 transitions, 1753 flow. Second operand 7 states and 87 transitions. [2024-11-19 09:55:23,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 122 transitions, 2087 flow [2024-11-19 09:55:23,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 122 transitions, 2010 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:23,679 INFO L231 Difference]: Finished difference. Result has 121 places, 98 transitions, 1644 flow [2024-11-19 09:55:23,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1629, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1644, PETRI_PLACES=121, PETRI_TRANSITIONS=98} [2024-11-19 09:55:23,683 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 95 predicate places. [2024-11-19 09:55:23,683 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 98 transitions, 1644 flow [2024-11-19 09:55:23,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:23,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:23,683 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:23,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 09:55:23,684 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:23,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:23,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1923648079, now seen corresponding path program 6 times [2024-11-19 09:55:23,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:23,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036164842] [2024-11-19 09:55:23,684 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:23,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:23,692 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:23,693 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:23,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:23,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036164842] [2024-11-19 09:55:23,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036164842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:23,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:55:23,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:55:23,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013689667] [2024-11-19 09:55:23,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:23,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:55:23,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:23,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:55:23,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:55:23,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:23,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 98 transitions, 1644 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:23,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:23,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:23,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:23,891 INFO L124 PetriNetUnfolderBase]: 244/471 cut-off events. [2024-11-19 09:55:23,892 INFO L125 PetriNetUnfolderBase]: For 7349/7349 co-relation queries the response was YES. [2024-11-19 09:55:23,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3359 conditions, 471 events. 244/471 cut-off events. For 7349/7349 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2043 event pairs, 35 based on Foata normal form. 6/473 useless extension candidates. Maximal degree in co-relation 3235. Up to 149 conditions per place. [2024-11-19 09:55:23,896 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 64 selfloop transitions, 32 changer transitions 3/114 dead transitions. [2024-11-19 09:55:23,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 114 transitions, 1878 flow [2024-11-19 09:55:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:55:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:55:23,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 99 transitions. [2024-11-19 09:55:23,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-11-19 09:55:23,898 INFO L175 Difference]: Start difference. First operand has 121 places, 98 transitions, 1644 flow. Second operand 8 states and 99 transitions. [2024-11-19 09:55:23,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 114 transitions, 1878 flow [2024-11-19 09:55:23,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 114 transitions, 1783 flow, removed 25 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:23,915 INFO L231 Difference]: Finished difference. Result has 120 places, 88 transitions, 1450 flow [2024-11-19 09:55:23,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1427, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1450, PETRI_PLACES=120, PETRI_TRANSITIONS=88} [2024-11-19 09:55:23,917 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 94 predicate places. [2024-11-19 09:55:23,917 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 88 transitions, 1450 flow [2024-11-19 09:55:23,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:23,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:23,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:23,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 09:55:23,918 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:23,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:23,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1356148850, now seen corresponding path program 1 times [2024-11-19 09:55:23,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:23,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056563895] [2024-11-19 09:55:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:55:23,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:24,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056563895] [2024-11-19 09:55:24,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056563895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:24,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400452242] [2024-11-19 09:55:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:55:24,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:24,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:24,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:24,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 09:55:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:24,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:24,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:24,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:24,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400452242] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:24,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:24,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:24,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025665111] [2024-11-19 09:55:24,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:24,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:24,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:24,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:24,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:24,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:24,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 88 transitions, 1450 flow. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:24,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:24,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:24,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:26,274 INFO L124 PetriNetUnfolderBase]: 686/1284 cut-off events. [2024-11-19 09:55:26,275 INFO L125 PetriNetUnfolderBase]: For 14390/14390 co-relation queries the response was YES. [2024-11-19 09:55:26,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7507 conditions, 1284 events. 686/1284 cut-off events. For 14390/14390 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6838 event pairs, 33 based on Foata normal form. 2/1286 useless extension candidates. Maximal degree in co-relation 7326. Up to 238 conditions per place. [2024-11-19 09:55:26,289 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 127 selfloop transitions, 87 changer transitions 68/283 dead transitions. [2024-11-19 09:55:26,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 283 transitions, 4009 flow [2024-11-19 09:55:26,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-19 09:55:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-19 09:55:26,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 346 transitions. [2024-11-19 09:55:26,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40046296296296297 [2024-11-19 09:55:26,291 INFO L175 Difference]: Start difference. First operand has 120 places, 88 transitions, 1450 flow. Second operand 36 states and 346 transitions. [2024-11-19 09:55:26,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 283 transitions, 4009 flow [2024-11-19 09:55:26,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 283 transitions, 3699 flow, removed 32 selfloop flow, removed 8 redundant places. [2024-11-19 09:55:26,316 INFO L231 Difference]: Finished difference. Result has 158 places, 127 transitions, 2285 flow [2024-11-19 09:55:26,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1312, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2285, PETRI_PLACES=158, PETRI_TRANSITIONS=127} [2024-11-19 09:55:26,318 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 132 predicate places. [2024-11-19 09:55:26,318 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 127 transitions, 2285 flow [2024-11-19 09:55:26,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:26,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:26,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:26,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 09:55:26,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:26,520 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:26,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2019769818, now seen corresponding path program 2 times [2024-11-19 09:55:26,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:26,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203242978] [2024-11-19 09:55:26,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:26,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:26,528 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:26,529 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:26,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:26,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203242978] [2024-11-19 09:55:26,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203242978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:26,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841784650] [2024-11-19 09:55:26,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:26,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:26,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:26,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:26,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 09:55:26,712 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:26,712 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:26,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:26,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:26,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:26,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:27,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841784650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:27,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:27,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2024-11-19 09:55:27,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466988883] [2024-11-19 09:55:27,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:27,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:27,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:27,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:27,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 127 transitions, 2285 flow. Second operand has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:27,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:27,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:27,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:28,106 INFO L124 PetriNetUnfolderBase]: 807/1574 cut-off events. [2024-11-19 09:55:28,106 INFO L125 PetriNetUnfolderBase]: For 18594/18594 co-relation queries the response was YES. [2024-11-19 09:55:28,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9247 conditions, 1574 events. 807/1574 cut-off events. For 18594/18594 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 9225 event pairs, 98 based on Foata normal form. 13/1587 useless extension candidates. Maximal degree in co-relation 9090. Up to 580 conditions per place. [2024-11-19 09:55:28,120 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 126 selfloop transitions, 126 changer transitions 14/267 dead transitions. [2024-11-19 09:55:28,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 267 transitions, 4572 flow [2024-11-19 09:55:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 09:55:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-19 09:55:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 245 transitions. [2024-11-19 09:55:28,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4253472222222222 [2024-11-19 09:55:28,122 INFO L175 Difference]: Start difference. First operand has 158 places, 127 transitions, 2285 flow. Second operand 24 states and 245 transitions. [2024-11-19 09:55:28,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 267 transitions, 4572 flow [2024-11-19 09:55:28,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 267 transitions, 3531 flow, removed 318 selfloop flow, removed 21 redundant places. [2024-11-19 09:55:28,177 INFO L231 Difference]: Finished difference. Result has 163 places, 183 transitions, 2797 flow [2024-11-19 09:55:28,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1684, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2797, PETRI_PLACES=163, PETRI_TRANSITIONS=183} [2024-11-19 09:55:28,178 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 137 predicate places. [2024-11-19 09:55:28,178 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 183 transitions, 2797 flow [2024-11-19 09:55:28,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:28,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:28,179 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:28,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 09:55:28,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:28,380 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:28,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1031593264, now seen corresponding path program 3 times [2024-11-19 09:55:28,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:28,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390970421] [2024-11-19 09:55:28,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:28,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:28,386 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:55:28,387 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:28,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390970421] [2024-11-19 09:55:28,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390970421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:28,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074570310] [2024-11-19 09:55:28,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:28,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:28,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:28,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:28,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 09:55:28,563 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:55:28,564 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:28,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:28,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:28,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:28,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074570310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:28,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:28,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:28,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738650366] [2024-11-19 09:55:28,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:28,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:28,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:28,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:28,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:28,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:28,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 183 transitions, 2797 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:28,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:28,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:28,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:29,654 INFO L124 PetriNetUnfolderBase]: 921/1828 cut-off events. [2024-11-19 09:55:29,655 INFO L125 PetriNetUnfolderBase]: For 15688/15688 co-relation queries the response was YES. [2024-11-19 09:55:29,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9521 conditions, 1828 events. 921/1828 cut-off events. For 15688/15688 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 11420 event pairs, 108 based on Foata normal form. 4/1832 useless extension candidates. Maximal degree in co-relation 9383. Up to 579 conditions per place. [2024-11-19 09:55:29,671 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 95 selfloop transitions, 169 changer transitions 14/279 dead transitions. [2024-11-19 09:55:29,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 279 transitions, 4577 flow [2024-11-19 09:55:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 09:55:29,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-19 09:55:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 164 transitions. [2024-11-19 09:55:29,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2024-11-19 09:55:29,673 INFO L175 Difference]: Start difference. First operand has 163 places, 183 transitions, 2797 flow. Second operand 17 states and 164 transitions. [2024-11-19 09:55:29,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 279 transitions, 4577 flow [2024-11-19 09:55:29,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 279 transitions, 4291 flow, removed 106 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:29,777 INFO L231 Difference]: Finished difference. Result has 179 places, 229 transitions, 3881 flow [2024-11-19 09:55:29,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2605, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3881, PETRI_PLACES=179, PETRI_TRANSITIONS=229} [2024-11-19 09:55:29,778 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 153 predicate places. [2024-11-19 09:55:29,778 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 229 transitions, 3881 flow [2024-11-19 09:55:29,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:29,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:29,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:29,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 09:55:29,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:29,983 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:29,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:29,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2110653492, now seen corresponding path program 4 times [2024-11-19 09:55:29,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638114120] [2024-11-19 09:55:29,983 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:29,989 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:29,990 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:30,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:30,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638114120] [2024-11-19 09:55:30,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638114120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:30,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989586472] [2024-11-19 09:55:30,101 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:30,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:30,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:30,103 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:30,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 09:55:30,143 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:30,143 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:30,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:30,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:30,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:30,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989586472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:30,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:30,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-19 09:55:30,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775313532] [2024-11-19 09:55:30,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:30,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:55:30,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:30,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:55:30,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:55:30,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:30,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 229 transitions, 3881 flow. Second operand has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:30,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:30,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:30,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:31,211 INFO L124 PetriNetUnfolderBase]: 884/1742 cut-off events. [2024-11-19 09:55:31,212 INFO L125 PetriNetUnfolderBase]: For 19260/19260 co-relation queries the response was YES. [2024-11-19 09:55:31,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10049 conditions, 1742 events. 884/1742 cut-off events. For 19260/19260 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10621 event pairs, 96 based on Foata normal form. 4/1746 useless extension candidates. Maximal degree in co-relation 9899. Up to 584 conditions per place. [2024-11-19 09:55:31,231 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 102 selfloop transitions, 154 changer transitions 20/277 dead transitions. [2024-11-19 09:55:31,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 277 transitions, 4828 flow [2024-11-19 09:55:31,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 09:55:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-19 09:55:31,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 164 transitions. [2024-11-19 09:55:31,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2024-11-19 09:55:31,233 INFO L175 Difference]: Start difference. First operand has 179 places, 229 transitions, 3881 flow. Second operand 17 states and 164 transitions. [2024-11-19 09:55:31,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 277 transitions, 4828 flow [2024-11-19 09:55:31,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 277 transitions, 4621 flow, removed 91 selfloop flow, removed 3 redundant places. [2024-11-19 09:55:31,327 INFO L231 Difference]: Finished difference. Result has 193 places, 223 transitions, 3890 flow [2024-11-19 09:55:31,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3682, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3890, PETRI_PLACES=193, PETRI_TRANSITIONS=223} [2024-11-19 09:55:31,328 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 167 predicate places. [2024-11-19 09:55:31,328 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 223 transitions, 3890 flow [2024-11-19 09:55:31,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:31,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:31,328 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:31,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:31,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:31,529 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:31,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:31,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1770968316, now seen corresponding path program 5 times [2024-11-19 09:55:31,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:31,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109283579] [2024-11-19 09:55:31,530 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:31,536 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:31,536 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:31,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:31,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109283579] [2024-11-19 09:55:31,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109283579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:31,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990203903] [2024-11-19 09:55:31,625 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:31,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:31,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:31,628 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:31,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 09:55:31,682 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:31,682 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:31,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 09:55:31,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:31,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:55:31,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990203903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:31,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:55:31,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2024-11-19 09:55:31,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924954116] [2024-11-19 09:55:31,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:31,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:31,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-19 09:55:31,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:31,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 223 transitions, 3890 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:31,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:31,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:31,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:32,033 INFO L124 PetriNetUnfolderBase]: 810/1578 cut-off events. [2024-11-19 09:55:32,033 INFO L125 PetriNetUnfolderBase]: For 19043/19043 co-relation queries the response was YES. [2024-11-19 09:55:32,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9710 conditions, 1578 events. 810/1578 cut-off events. For 19043/19043 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9180 event pairs, 153 based on Foata normal form. 3/1581 useless extension candidates. Maximal degree in co-relation 9596. Up to 965 conditions per place. [2024-11-19 09:55:32,049 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 135 selfloop transitions, 63 changer transitions 54/253 dead transitions. [2024-11-19 09:55:32,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 253 transitions, 4753 flow [2024-11-19 09:55:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:32,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-11-19 09:55:32,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-19 09:55:32,051 INFO L175 Difference]: Start difference. First operand has 193 places, 223 transitions, 3890 flow. Second operand 9 states and 92 transitions. [2024-11-19 09:55:32,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 253 transitions, 4753 flow [2024-11-19 09:55:32,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 253 transitions, 4468 flow, removed 14 selfloop flow, removed 15 redundant places. [2024-11-19 09:55:32,138 INFO L231 Difference]: Finished difference. Result has 185 places, 185 transitions, 3033 flow [2024-11-19 09:55:32,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3625, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3033, PETRI_PLACES=185, PETRI_TRANSITIONS=185} [2024-11-19 09:55:32,139 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 159 predicate places. [2024-11-19 09:55:32,139 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 185 transitions, 3033 flow [2024-11-19 09:55:32,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:32,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:32,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:32,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 09:55:32,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-19 09:55:32,340 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:32,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:32,341 INFO L85 PathProgramCache]: Analyzing trace with hash 390000450, now seen corresponding path program 6 times [2024-11-19 09:55:32,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:32,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670970908] [2024-11-19 09:55:32,341 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:32,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:32,346 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:32,346 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:32,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:32,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670970908] [2024-11-19 09:55:32,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670970908] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:32,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284857766] [2024-11-19 09:55:32,458 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:32,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:32,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:32,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:32,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 09:55:32,502 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:32,502 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:32,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:32,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:32,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:32,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284857766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:32,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:32,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:32,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479040837] [2024-11-19 09:55:32,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:32,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:32,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:32,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:32,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:32,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 185 transitions, 3033 flow. Second operand has 23 states, 23 states have (on average 5.565217391304348) internal successors, (128), 23 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:32,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:32,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:32,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:33,244 INFO L124 PetriNetUnfolderBase]: 762/1522 cut-off events. [2024-11-19 09:55:33,245 INFO L125 PetriNetUnfolderBase]: For 15344/15344 co-relation queries the response was YES. [2024-11-19 09:55:33,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8460 conditions, 1522 events. 762/1522 cut-off events. For 15344/15344 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 9067 event pairs, 128 based on Foata normal form. 4/1526 useless extension candidates. Maximal degree in co-relation 8312. Up to 770 conditions per place. [2024-11-19 09:55:33,256 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 96 selfloop transitions, 106 changer transitions 24/227 dead transitions. [2024-11-19 09:55:33,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 227 transitions, 3906 flow [2024-11-19 09:55:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 09:55:33,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 09:55:33,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 124 transitions. [2024-11-19 09:55:33,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2024-11-19 09:55:33,258 INFO L175 Difference]: Start difference. First operand has 185 places, 185 transitions, 3033 flow. Second operand 12 states and 124 transitions. [2024-11-19 09:55:33,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 227 transitions, 3906 flow [2024-11-19 09:55:33,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 227 transitions, 3424 flow, removed 36 selfloop flow, removed 21 redundant places. [2024-11-19 09:55:33,317 INFO L231 Difference]: Finished difference. Result has 166 places, 175 transitions, 2746 flow [2024-11-19 09:55:33,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2589, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2746, PETRI_PLACES=166, PETRI_TRANSITIONS=175} [2024-11-19 09:55:33,318 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 140 predicate places. [2024-11-19 09:55:33,318 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 175 transitions, 2746 flow [2024-11-19 09:55:33,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.565217391304348) internal successors, (128), 23 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:33,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:33,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:33,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:33,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-19 09:55:33,519 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:33,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:33,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1365119996, now seen corresponding path program 7 times [2024-11-19 09:55:33,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:33,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979934673] [2024-11-19 09:55:33,520 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:33,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:33,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:33,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979934673] [2024-11-19 09:55:33,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979934673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:33,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8556391] [2024-11-19 09:55:33,640 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:33,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:33,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:33,642 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:33,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 09:55:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:33,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:33,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:33,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:33,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8556391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:33,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:33,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:33,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747081176] [2024-11-19 09:55:33,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:33,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:33,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:33,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:33,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:33,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:33,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 175 transitions, 2746 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:33,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:33,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:33,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:34,371 INFO L124 PetriNetUnfolderBase]: 735/1464 cut-off events. [2024-11-19 09:55:34,371 INFO L125 PetriNetUnfolderBase]: For 12952/12952 co-relation queries the response was YES. [2024-11-19 09:55:34,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7901 conditions, 1464 events. 735/1464 cut-off events. For 12952/12952 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8587 event pairs, 135 based on Foata normal form. 5/1469 useless extension candidates. Maximal degree in co-relation 7767. Up to 810 conditions per place. [2024-11-19 09:55:34,381 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 86 selfloop transitions, 93 changer transitions 26/206 dead transitions. [2024-11-19 09:55:34,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 206 transitions, 3456 flow [2024-11-19 09:55:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 09:55:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 09:55:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 116 transitions. [2024-11-19 09:55:34,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2024-11-19 09:55:34,383 INFO L175 Difference]: Start difference. First operand has 166 places, 175 transitions, 2746 flow. Second operand 12 states and 116 transitions. [2024-11-19 09:55:34,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 206 transitions, 3456 flow [2024-11-19 09:55:34,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 206 transitions, 3367 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:34,451 INFO L231 Difference]: Finished difference. Result has 170 places, 160 transitions, 2591 flow [2024-11-19 09:55:34,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2659, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2591, PETRI_PLACES=170, PETRI_TRANSITIONS=160} [2024-11-19 09:55:34,452 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 144 predicate places. [2024-11-19 09:55:34,452 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 160 transitions, 2591 flow [2024-11-19 09:55:34,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:34,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:34,452 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:34,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:34,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-19 09:55:34,653 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:34,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -206140442, now seen corresponding path program 8 times [2024-11-19 09:55:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:34,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542354618] [2024-11-19 09:55:34,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:34,658 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:34,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:34,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:34,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542354618] [2024-11-19 09:55:34,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542354618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:34,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024297620] [2024-11-19 09:55:34,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:34,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:34,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:34,766 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:34,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 09:55:34,808 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:34,808 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:34,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:34,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:34,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:35,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:35,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024297620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:35,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:35,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974864753] [2024-11-19 09:55:35,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:35,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:35,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:35,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:35,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:35,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:35,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 160 transitions, 2591 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:35,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:35,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:35,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:35,577 INFO L124 PetriNetUnfolderBase]: 654/1266 cut-off events. [2024-11-19 09:55:35,577 INFO L125 PetriNetUnfolderBase]: For 12359/12359 co-relation queries the response was YES. [2024-11-19 09:55:35,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7309 conditions, 1266 events. 654/1266 cut-off events. For 12359/12359 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6987 event pairs, 67 based on Foata normal form. 7/1273 useless extension candidates. Maximal degree in co-relation 7203. Up to 435 conditions per place. [2024-11-19 09:55:35,584 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 75 selfloop transitions, 66 changer transitions 57/199 dead transitions. [2024-11-19 09:55:35,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 199 transitions, 3347 flow [2024-11-19 09:55:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 09:55:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 09:55:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 124 transitions. [2024-11-19 09:55:35,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3974358974358974 [2024-11-19 09:55:35,586 INFO L175 Difference]: Start difference. First operand has 170 places, 160 transitions, 2591 flow. Second operand 13 states and 124 transitions. [2024-11-19 09:55:35,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 199 transitions, 3347 flow [2024-11-19 09:55:35,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 199 transitions, 3084 flow, removed 1 selfloop flow, removed 11 redundant places. [2024-11-19 09:55:35,614 INFO L231 Difference]: Finished difference. Result has 165 places, 121 transitions, 1840 flow [2024-11-19 09:55:35,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2331, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1840, PETRI_PLACES=165, PETRI_TRANSITIONS=121} [2024-11-19 09:55:35,615 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 139 predicate places. [2024-11-19 09:55:35,615 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 121 transitions, 1840 flow [2024-11-19 09:55:35,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:35,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:35,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:35,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 09:55:35,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-19 09:55:35,816 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:35,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:35,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2108922576, now seen corresponding path program 9 times [2024-11-19 09:55:35,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:35,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914490478] [2024-11-19 09:55:35,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:35,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:35,823 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:55:35,823 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:35,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:35,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914490478] [2024-11-19 09:55:35,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914490478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:35,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893461437] [2024-11-19 09:55:35,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:35,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:35,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:35,967 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:35,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 09:55:36,014 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:55:36,014 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:36,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:36,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:36,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:36,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:36,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893461437] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:36,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:36,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-19 09:55:36,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321880860] [2024-11-19 09:55:36,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:36,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:55:36,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:36,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:55:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:55:36,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:36,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 121 transitions, 1840 flow. Second operand has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:36,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:36,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:36,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:37,282 INFO L124 PetriNetUnfolderBase]: 808/1618 cut-off events. [2024-11-19 09:55:37,282 INFO L125 PetriNetUnfolderBase]: For 15816/15816 co-relation queries the response was YES. [2024-11-19 09:55:37,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9040 conditions, 1618 events. 808/1618 cut-off events. For 15816/15816 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9822 event pairs, 33 based on Foata normal form. 26/1644 useless extension candidates. Maximal degree in co-relation 8982. Up to 363 conditions per place. [2024-11-19 09:55:37,297 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 105 selfloop transitions, 181 changer transitions 19/306 dead transitions. [2024-11-19 09:55:37,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 306 transitions, 4852 flow [2024-11-19 09:55:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-19 09:55:37,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-19 09:55:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 310 transitions. [2024-11-19 09:55:37,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39141414141414144 [2024-11-19 09:55:37,299 INFO L175 Difference]: Start difference. First operand has 165 places, 121 transitions, 1840 flow. Second operand 33 states and 310 transitions. [2024-11-19 09:55:37,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 306 transitions, 4852 flow [2024-11-19 09:55:37,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 306 transitions, 4476 flow, removed 29 selfloop flow, removed 19 redundant places. [2024-11-19 09:55:37,352 INFO L231 Difference]: Finished difference. Result has 180 places, 225 transitions, 3984 flow [2024-11-19 09:55:37,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1657, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3984, PETRI_PLACES=180, PETRI_TRANSITIONS=225} [2024-11-19 09:55:37,356 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 154 predicate places. [2024-11-19 09:55:37,356 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 225 transitions, 3984 flow [2024-11-19 09:55:37,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:37,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:37,357 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:37,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 09:55:37,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-19 09:55:37,557 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:37,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:37,558 INFO L85 PathProgramCache]: Analyzing trace with hash -129278282, now seen corresponding path program 10 times [2024-11-19 09:55:37,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:37,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376599511] [2024-11-19 09:55:37,558 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:37,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:37,562 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:37,562 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:37,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:37,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376599511] [2024-11-19 09:55:37,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376599511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:37,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618448662] [2024-11-19 09:55:37,695 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:37,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:37,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:37,697 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:37,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 09:55:37,739 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:37,740 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:37,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:37,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:37,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:38,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618448662] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:38,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:38,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-19 09:55:38,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598535940] [2024-11-19 09:55:38,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:38,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:55:38,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:38,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:55:38,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:55:38,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:38,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 225 transitions, 3984 flow. Second operand has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:38,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:38,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:38,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:38,909 INFO L124 PetriNetUnfolderBase]: 954/1875 cut-off events. [2024-11-19 09:55:38,909 INFO L125 PetriNetUnfolderBase]: For 20357/20357 co-relation queries the response was YES. [2024-11-19 09:55:38,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11163 conditions, 1875 events. 954/1875 cut-off events. For 20357/20357 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 11571 event pairs, 124 based on Foata normal form. 4/1879 useless extension candidates. Maximal degree in co-relation 11101. Up to 738 conditions per place. [2024-11-19 09:55:38,919 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 130 selfloop transitions, 125 changer transitions 62/318 dead transitions. [2024-11-19 09:55:38,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 318 transitions, 5683 flow [2024-11-19 09:55:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 09:55:38,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 09:55:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 191 transitions. [2024-11-19 09:55:38,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37896825396825395 [2024-11-19 09:55:38,921 INFO L175 Difference]: Start difference. First operand has 180 places, 225 transitions, 3984 flow. Second operand 21 states and 191 transitions. [2024-11-19 09:55:38,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 318 transitions, 5683 flow [2024-11-19 09:55:38,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 318 transitions, 4788 flow, removed 382 selfloop flow, removed 16 redundant places. [2024-11-19 09:55:38,984 INFO L231 Difference]: Finished difference. Result has 188 places, 215 transitions, 3380 flow [2024-11-19 09:55:38,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3235, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3380, PETRI_PLACES=188, PETRI_TRANSITIONS=215} [2024-11-19 09:55:38,985 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 162 predicate places. [2024-11-19 09:55:38,985 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 215 transitions, 3380 flow [2024-11-19 09:55:38,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:38,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:38,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:38,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 09:55:39,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-19 09:55:39,186 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:39,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:39,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1625490372, now seen corresponding path program 11 times [2024-11-19 09:55:39,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:39,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381703331] [2024-11-19 09:55:39,186 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:39,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:39,193 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:39,193 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:39,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:39,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381703331] [2024-11-19 09:55:39,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381703331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:39,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937053511] [2024-11-19 09:55:39,288 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:39,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:39,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:39,290 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:39,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 09:55:39,335 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:39,335 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:39,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 09:55:39,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:39,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:39,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:55:39,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937053511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:39,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:55:39,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2024-11-19 09:55:39,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461052070] [2024-11-19 09:55:39,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:39,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:39,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:39,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:39,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-19 09:55:39,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:39,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 215 transitions, 3380 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:39,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:39,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:39,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:39,843 INFO L124 PetriNetUnfolderBase]: 1039/2030 cut-off events. [2024-11-19 09:55:39,844 INFO L125 PetriNetUnfolderBase]: For 22947/22947 co-relation queries the response was YES. [2024-11-19 09:55:39,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11386 conditions, 2030 events. 1039/2030 cut-off events. For 22947/22947 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 12812 event pairs, 242 based on Foata normal form. 7/2037 useless extension candidates. Maximal degree in co-relation 11327. Up to 1105 conditions per place. [2024-11-19 09:55:39,863 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 169 selfloop transitions, 104 changer transitions 26/300 dead transitions. [2024-11-19 09:55:39,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 300 transitions, 5298 flow [2024-11-19 09:55:39,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:39,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-19 09:55:39,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-11-19 09:55:39,865 INFO L175 Difference]: Start difference. First operand has 188 places, 215 transitions, 3380 flow. Second operand 9 states and 95 transitions. [2024-11-19 09:55:39,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 300 transitions, 5298 flow [2024-11-19 09:55:39,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 300 transitions, 5015 flow, removed 29 selfloop flow, removed 16 redundant places. [2024-11-19 09:55:39,965 INFO L231 Difference]: Finished difference. Result has 180 places, 241 transitions, 3997 flow [2024-11-19 09:55:39,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3160, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3997, PETRI_PLACES=180, PETRI_TRANSITIONS=241} [2024-11-19 09:55:39,966 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 154 predicate places. [2024-11-19 09:55:39,966 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 241 transitions, 3997 flow [2024-11-19 09:55:39,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:39,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:39,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:39,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:40,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:40,167 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:40,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:40,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1926533822, now seen corresponding path program 12 times [2024-11-19 09:55:40,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:40,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935780511] [2024-11-19 09:55:40,168 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:40,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:40,173 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:40,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:40,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:40,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:40,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935780511] [2024-11-19 09:55:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935780511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:40,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017819069] [2024-11-19 09:55:40,308 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:40,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:40,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:40,310 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:40,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 09:55:40,355 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:40,356 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:40,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:40,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:40,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:40,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017819069] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:40,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:40,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-19 09:55:40,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572148532] [2024-11-19 09:55:40,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:40,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:55:40,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:40,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:55:40,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:55:40,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:40,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 241 transitions, 3997 flow. Second operand has 24 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:40,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:40,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:40,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:41,443 INFO L124 PetriNetUnfolderBase]: 952/1869 cut-off events. [2024-11-19 09:55:41,444 INFO L125 PetriNetUnfolderBase]: For 20123/20123 co-relation queries the response was YES. [2024-11-19 09:55:41,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10728 conditions, 1869 events. 952/1869 cut-off events. For 20123/20123 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 11428 event pairs, 192 based on Foata normal form. 4/1873 useless extension candidates. Maximal degree in co-relation 10669. Up to 1056 conditions per place. [2024-11-19 09:55:41,456 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 156 selfloop transitions, 135 changer transitions 14/306 dead transitions. [2024-11-19 09:55:41,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 306 transitions, 5193 flow [2024-11-19 09:55:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 09:55:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-19 09:55:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 233 transitions. [2024-11-19 09:55:41,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3595679012345679 [2024-11-19 09:55:41,458 INFO L175 Difference]: Start difference. First operand has 180 places, 241 transitions, 3997 flow. Second operand 27 states and 233 transitions. [2024-11-19 09:55:41,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 306 transitions, 5193 flow [2024-11-19 09:55:41,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 306 transitions, 4965 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-11-19 09:55:41,521 INFO L231 Difference]: Finished difference. Result has 199 places, 240 transitions, 4118 flow [2024-11-19 09:55:41,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3596, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=4118, PETRI_PLACES=199, PETRI_TRANSITIONS=240} [2024-11-19 09:55:41,521 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 173 predicate places. [2024-11-19 09:55:41,521 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 240 transitions, 4118 flow [2024-11-19 09:55:41,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:41,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:41,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:41,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:41,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:41,722 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:41,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:41,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1814202574, now seen corresponding path program 13 times [2024-11-19 09:55:41,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:41,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007340377] [2024-11-19 09:55:41,723 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:41,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:41,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:41,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007340377] [2024-11-19 09:55:41,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007340377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:41,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074855230] [2024-11-19 09:55:41,838 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:41,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:41,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:41,840 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:41,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 09:55:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:41,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:41,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:41,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:42,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074855230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:42,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:42,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2024-11-19 09:55:42,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704580027] [2024-11-19 09:55:42,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:42,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 09:55:42,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 09:55:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-19 09:55:42,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:42,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 240 transitions, 4118 flow. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:42,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:42,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:42,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:43,161 INFO L124 PetriNetUnfolderBase]: 992/1951 cut-off events. [2024-11-19 09:55:43,162 INFO L125 PetriNetUnfolderBase]: For 22163/22163 co-relation queries the response was YES. [2024-11-19 09:55:43,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11396 conditions, 1951 events. 992/1951 cut-off events. For 22163/22163 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 12103 event pairs, 103 based on Foata normal form. 11/1962 useless extension candidates. Maximal degree in co-relation 11336. Up to 637 conditions per place. [2024-11-19 09:55:43,180 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 101 selfloop transitions, 175 changer transitions 23/300 dead transitions. [2024-11-19 09:55:43,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 300 transitions, 5198 flow [2024-11-19 09:55:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 09:55:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-19 09:55:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 213 transitions. [2024-11-19 09:55:43,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.355 [2024-11-19 09:55:43,182 INFO L175 Difference]: Start difference. First operand has 199 places, 240 transitions, 4118 flow. Second operand 25 states and 213 transitions. [2024-11-19 09:55:43,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 300 transitions, 5198 flow [2024-11-19 09:55:43,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 300 transitions, 4981 flow, removed 41 selfloop flow, removed 10 redundant places. [2024-11-19 09:55:43,256 INFO L231 Difference]: Finished difference. Result has 217 places, 243 transitions, 4478 flow [2024-11-19 09:55:43,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3904, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4478, PETRI_PLACES=217, PETRI_TRANSITIONS=243} [2024-11-19 09:55:43,257 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 191 predicate places. [2024-11-19 09:55:43,257 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 243 transitions, 4478 flow [2024-11-19 09:55:43,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:43,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:43,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:43,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 09:55:43,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:43,458 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:43,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:43,458 INFO L85 PathProgramCache]: Analyzing trace with hash 561000242, now seen corresponding path program 14 times [2024-11-19 09:55:43,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:43,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856755665] [2024-11-19 09:55:43,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:43,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:43,466 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:43,467 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:43,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:43,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856755665] [2024-11-19 09:55:43,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856755665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:43,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867200893] [2024-11-19 09:55:43,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:43,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:43,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:43,591 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:43,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 09:55:43,637 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:43,638 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:43,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:43,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:43,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:43,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867200893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:43,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:43,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-19 09:55:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340866443] [2024-11-19 09:55:43,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:43,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 09:55:43,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 09:55:43,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-11-19 09:55:43,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:43,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 243 transitions, 4478 flow. Second operand has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:43,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:43,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:43,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:44,682 INFO L124 PetriNetUnfolderBase]: 954/1889 cut-off events. [2024-11-19 09:55:44,682 INFO L125 PetriNetUnfolderBase]: For 25021/25021 co-relation queries the response was YES. [2024-11-19 09:55:44,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11621 conditions, 1889 events. 954/1889 cut-off events. For 25021/25021 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 11684 event pairs, 62 based on Foata normal form. 3/1892 useless extension candidates. Maximal degree in co-relation 11556. Up to 602 conditions per place. [2024-11-19 09:55:44,693 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 84 selfloop transitions, 174 changer transitions 30/289 dead transitions. [2024-11-19 09:55:44,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 289 transitions, 5291 flow [2024-11-19 09:55:44,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 09:55:44,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-19 09:55:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 205 transitions. [2024-11-19 09:55:44,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3416666666666667 [2024-11-19 09:55:44,694 INFO L175 Difference]: Start difference. First operand has 217 places, 243 transitions, 4478 flow. Second operand 25 states and 205 transitions. [2024-11-19 09:55:44,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 289 transitions, 5291 flow [2024-11-19 09:55:44,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 289 transitions, 4968 flow, removed 45 selfloop flow, removed 16 redundant places. [2024-11-19 09:55:44,764 INFO L231 Difference]: Finished difference. Result has 222 places, 234 transitions, 4341 flow [2024-11-19 09:55:44,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4160, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4341, PETRI_PLACES=222, PETRI_TRANSITIONS=234} [2024-11-19 09:55:44,764 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 196 predicate places. [2024-11-19 09:55:44,764 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 234 transitions, 4341 flow [2024-11-19 09:55:44,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:44,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:44,765 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:44,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:44,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:44,965 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:44,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:44,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1260275092, now seen corresponding path program 15 times [2024-11-19 09:55:44,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:44,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710661316] [2024-11-19 09:55:44,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:44,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:44,970 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:55:44,970 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:45,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:45,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710661316] [2024-11-19 09:55:45,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710661316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:45,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370601986] [2024-11-19 09:55:45,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:45,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:45,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:45,075 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:45,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 09:55:45,120 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:55:45,120 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:45,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:45,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:45,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:45,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370601986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:45,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:45,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:45,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574672133] [2024-11-19 09:55:45,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:45,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:45,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:45,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:45,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:45,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:45,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 234 transitions, 4341 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:45,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:45,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:45,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:46,019 INFO L124 PetriNetUnfolderBase]: 1031/1987 cut-off events. [2024-11-19 09:55:46,019 INFO L125 PetriNetUnfolderBase]: For 26818/26818 co-relation queries the response was YES. [2024-11-19 09:55:46,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12414 conditions, 1987 events. 1031/1987 cut-off events. For 26818/26818 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 12155 event pairs, 217 based on Foata normal form. 2/1989 useless extension candidates. Maximal degree in co-relation 12353. Up to 1261 conditions per place. [2024-11-19 09:55:46,034 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 196 selfloop transitions, 99 changer transitions 12/308 dead transitions. [2024-11-19 09:55:46,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 308 transitions, 5997 flow [2024-11-19 09:55:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 09:55:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 09:55:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 132 transitions. [2024-11-19 09:55:46,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-19 09:55:46,035 INFO L175 Difference]: Start difference. First operand has 222 places, 234 transitions, 4341 flow. Second operand 14 states and 132 transitions. [2024-11-19 09:55:46,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 308 transitions, 5997 flow [2024-11-19 09:55:46,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 308 transitions, 5601 flow, removed 23 selfloop flow, removed 20 redundant places. [2024-11-19 09:55:46,112 INFO L231 Difference]: Finished difference. Result has 214 places, 253 transitions, 4649 flow [2024-11-19 09:55:46,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4013, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4649, PETRI_PLACES=214, PETRI_TRANSITIONS=253} [2024-11-19 09:55:46,112 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 188 predicate places. [2024-11-19 09:55:46,113 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 253 transitions, 4649 flow [2024-11-19 09:55:46,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:46,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:46,113 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:46,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:46,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:46,313 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:46,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:46,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1033072282, now seen corresponding path program 16 times [2024-11-19 09:55:46,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:46,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070458987] [2024-11-19 09:55:46,314 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:46,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:46,319 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:46,319 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:46,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:46,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070458987] [2024-11-19 09:55:46,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070458987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:46,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915178216] [2024-11-19 09:55:46,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:46,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:46,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:46,424 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:46,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-19 09:55:46,469 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:46,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:46,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:46,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:46,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:46,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:46,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915178216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:46,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:46,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-19 09:55:46,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002484381] [2024-11-19 09:55:46,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:46,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:55:46,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:46,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:55:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:55:46,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:46,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 253 transitions, 4649 flow. Second operand has 24 states, 24 states have (on average 5.375) internal successors, (129), 24 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:46,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:46,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:46,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:47,255 INFO L124 PetriNetUnfolderBase]: 1026/1971 cut-off events. [2024-11-19 09:55:47,255 INFO L125 PetriNetUnfolderBase]: For 25959/25959 co-relation queries the response was YES. [2024-11-19 09:55:47,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12422 conditions, 1971 events. 1026/1971 cut-off events. For 25959/25959 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 11957 event pairs, 243 based on Foata normal form. 1/1972 useless extension candidates. Maximal degree in co-relation 12358. Up to 1431 conditions per place. [2024-11-19 09:55:47,269 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 179 selfloop transitions, 85 changer transitions 21/286 dead transitions. [2024-11-19 09:55:47,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 286 transitions, 5563 flow [2024-11-19 09:55:47,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 09:55:47,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 09:55:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 116 transitions. [2024-11-19 09:55:47,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3717948717948718 [2024-11-19 09:55:47,270 INFO L175 Difference]: Start difference. First operand has 214 places, 253 transitions, 4649 flow. Second operand 13 states and 116 transitions. [2024-11-19 09:55:47,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 286 transitions, 5563 flow [2024-11-19 09:55:47,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 286 transitions, 5499 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-11-19 09:55:47,338 INFO L231 Difference]: Finished difference. Result has 223 places, 249 transitions, 4696 flow [2024-11-19 09:55:47,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4587, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4696, PETRI_PLACES=223, PETRI_TRANSITIONS=249} [2024-11-19 09:55:47,338 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 197 predicate places. [2024-11-19 09:55:47,338 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 249 transitions, 4696 flow [2024-11-19 09:55:47,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.375) internal successors, (129), 24 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:47,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:47,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:47,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:47,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:47,539 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:47,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:47,540 INFO L85 PathProgramCache]: Analyzing trace with hash 929239654, now seen corresponding path program 17 times [2024-11-19 09:55:47,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:47,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405246625] [2024-11-19 09:55:47,540 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:47,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:47,545 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-19 09:55:47,545 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:47,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:47,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405246625] [2024-11-19 09:55:47,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405246625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:47,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884155739] [2024-11-19 09:55:47,626 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:47,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:47,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:47,627 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:47,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 09:55:47,663 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-19 09:55:47,663 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:47,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 09:55:47,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:47,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:55:47,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884155739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:55:47,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:55:47,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2024-11-19 09:55:47,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511370234] [2024-11-19 09:55:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:55:47,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:55:47,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:47,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:55:47,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-19 09:55:47,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:47,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 249 transitions, 4696 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:47,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:47,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:47,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:48,007 INFO L124 PetriNetUnfolderBase]: 1021/1975 cut-off events. [2024-11-19 09:55:48,008 INFO L125 PetriNetUnfolderBase]: For 26369/26369 co-relation queries the response was YES. [2024-11-19 09:55:48,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12410 conditions, 1975 events. 1021/1975 cut-off events. For 26369/26369 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 12102 event pairs, 265 based on Foata normal form. 2/1977 useless extension candidates. Maximal degree in co-relation 12344. Up to 1423 conditions per place. [2024-11-19 09:55:48,021 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 150 selfloop transitions, 93 changer transitions 33/277 dead transitions. [2024-11-19 09:55:48,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 277 transitions, 5551 flow [2024-11-19 09:55:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:48,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2024-11-19 09:55:48,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-11-19 09:55:48,022 INFO L175 Difference]: Start difference. First operand has 223 places, 249 transitions, 4696 flow. Second operand 9 states and 91 transitions. [2024-11-19 09:55:48,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 277 transitions, 5551 flow [2024-11-19 09:55:48,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 277 transitions, 5355 flow, removed 5 selfloop flow, removed 13 redundant places. [2024-11-19 09:55:48,090 INFO L231 Difference]: Finished difference. Result has 216 places, 233 transitions, 4403 flow [2024-11-19 09:55:48,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4500, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4403, PETRI_PLACES=216, PETRI_TRANSITIONS=233} [2024-11-19 09:55:48,090 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 190 predicate places. [2024-11-19 09:55:48,091 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 233 transitions, 4403 flow [2024-11-19 09:55:48,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:48,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:48,091 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:48,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:48,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-19 09:55:48,291 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:48,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash -320523004, now seen corresponding path program 18 times [2024-11-19 09:55:48,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:48,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945874996] [2024-11-19 09:55:48,292 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:48,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:48,299 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:55:48,299 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:48,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:48,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945874996] [2024-11-19 09:55:48,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945874996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:48,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537688921] [2024-11-19 09:55:48,377 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:48,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:48,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:48,379 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:48,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-19 09:55:48,420 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:55:48,420 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:48,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:48,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:48,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:48,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:48,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537688921] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:48,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:48,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2024-11-19 09:55:48,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340883734] [2024-11-19 09:55:48,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:48,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:48,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:48,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:48,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:48,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:48,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 233 transitions, 4403 flow. Second operand has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:48,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:48,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:48,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:49,673 INFO L124 PetriNetUnfolderBase]: 1516/2888 cut-off events. [2024-11-19 09:55:49,673 INFO L125 PetriNetUnfolderBase]: For 39645/39645 co-relation queries the response was YES. [2024-11-19 09:55:49,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18138 conditions, 2888 events. 1516/2888 cut-off events. For 39645/39645 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 19222 event pairs, 297 based on Foata normal form. 9/2897 useless extension candidates. Maximal degree in co-relation 18074. Up to 1437 conditions per place. [2024-11-19 09:55:49,690 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 210 selfloop transitions, 153 changer transitions 63/427 dead transitions. [2024-11-19 09:55:49,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 427 transitions, 7978 flow [2024-11-19 09:55:49,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 09:55:49,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-19 09:55:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 287 transitions. [2024-11-19 09:55:49,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.385752688172043 [2024-11-19 09:55:49,691 INFO L175 Difference]: Start difference. First operand has 216 places, 233 transitions, 4403 flow. Second operand 31 states and 287 transitions. [2024-11-19 09:55:49,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 427 transitions, 7978 flow [2024-11-19 09:55:49,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 427 transitions, 7630 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-11-19 09:55:49,791 INFO L231 Difference]: Finished difference. Result has 246 places, 285 transitions, 5678 flow [2024-11-19 09:55:49,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4178, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=5678, PETRI_PLACES=246, PETRI_TRANSITIONS=285} [2024-11-19 09:55:49,791 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 220 predicate places. [2024-11-19 09:55:49,791 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 285 transitions, 5678 flow [2024-11-19 09:55:49,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:49,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:49,792 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:49,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:49,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-19 09:55:49,992 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:49,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:49,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1184810040, now seen corresponding path program 19 times [2024-11-19 09:55:49,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:49,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73424621] [2024-11-19 09:55:49,993 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:49,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:50,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:50,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73424621] [2024-11-19 09:55:50,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73424621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:50,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307529461] [2024-11-19 09:55:50,098 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:50,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:50,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:50,100 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:50,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-19 09:55:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:50,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:50,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:50,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:50,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307529461] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:50,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:50,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-19 09:55:50,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448874884] [2024-11-19 09:55:50,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:50,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-19 09:55:50,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:50,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-19 09:55:50,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-19 09:55:50,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:50,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 285 transitions, 5678 flow. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:50,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:50,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:50,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:51,354 INFO L124 PetriNetUnfolderBase]: 1452/2827 cut-off events. [2024-11-19 09:55:51,355 INFO L125 PetriNetUnfolderBase]: For 36197/36197 co-relation queries the response was YES. [2024-11-19 09:55:51,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17593 conditions, 2827 events. 1452/2827 cut-off events. For 36197/36197 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 19108 event pairs, 281 based on Foata normal form. 12/2839 useless extension candidates. Maximal degree in co-relation 17519. Up to 1648 conditions per place. [2024-11-19 09:55:51,386 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 180 selfloop transitions, 107 changer transitions 73/361 dead transitions. [2024-11-19 09:55:51,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 361 transitions, 7064 flow [2024-11-19 09:55:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 09:55:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-19 09:55:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 203 transitions. [2024-11-19 09:55:51,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3677536231884058 [2024-11-19 09:55:51,388 INFO L175 Difference]: Start difference. First operand has 246 places, 285 transitions, 5678 flow. Second operand 23 states and 203 transitions. [2024-11-19 09:55:51,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 361 transitions, 7064 flow [2024-11-19 09:55:51,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 361 transitions, 6873 flow, removed 46 selfloop flow, removed 10 redundant places. [2024-11-19 09:55:51,547 INFO L231 Difference]: Finished difference. Result has 259 places, 260 transitions, 5202 flow [2024-11-19 09:55:51,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5506, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=5202, PETRI_PLACES=259, PETRI_TRANSITIONS=260} [2024-11-19 09:55:51,547 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 233 predicate places. [2024-11-19 09:55:51,548 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 260 transitions, 5202 flow [2024-11-19 09:55:51,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:51,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:51,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:51,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-19 09:55:51,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-19 09:55:51,748 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:51,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1177374724, now seen corresponding path program 20 times [2024-11-19 09:55:51,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:51,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850741825] [2024-11-19 09:55:51,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:51,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:51,754 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:51,754 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:51,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:51,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850741825] [2024-11-19 09:55:51,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850741825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:51,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306548700] [2024-11-19 09:55:51,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:51,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:51,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:51,865 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:51,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-19 09:55:51,902 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:51,902 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:51,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:51,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:51,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:52,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:52,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306548700] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:52,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:52,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:52,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519534987] [2024-11-19 09:55:52,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:52,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:52,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:52,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:52,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:52,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:52,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 260 transitions, 5202 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:52,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:52,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:52,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:53,297 INFO L124 PetriNetUnfolderBase]: 1790/3542 cut-off events. [2024-11-19 09:55:53,298 INFO L125 PetriNetUnfolderBase]: For 45227/45227 co-relation queries the response was YES. [2024-11-19 09:55:53,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22490 conditions, 3542 events. 1790/3542 cut-off events. For 45227/45227 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 25564 event pairs, 111 based on Foata normal form. 17/3559 useless extension candidates. Maximal degree in co-relation 22414. Up to 744 conditions per place. [2024-11-19 09:55:53,320 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 158 selfloop transitions, 193 changer transitions 120/472 dead transitions. [2024-11-19 09:55:53,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 472 transitions, 9566 flow [2024-11-19 09:55:53,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 09:55:53,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-19 09:55:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 263 transitions. [2024-11-19 09:55:53,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36527777777777776 [2024-11-19 09:55:53,321 INFO L175 Difference]: Start difference. First operand has 259 places, 260 transitions, 5202 flow. Second operand 30 states and 263 transitions. [2024-11-19 09:55:53,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 472 transitions, 9566 flow [2024-11-19 09:55:53,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 472 transitions, 9339 flow, removed 65 selfloop flow, removed 17 redundant places. [2024-11-19 09:55:53,466 INFO L231 Difference]: Finished difference. Result has 269 places, 290 transitions, 6619 flow [2024-11-19 09:55:53,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5076, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=6619, PETRI_PLACES=269, PETRI_TRANSITIONS=290} [2024-11-19 09:55:53,466 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 243 predicate places. [2024-11-19 09:55:53,467 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 290 transitions, 6619 flow [2024-11-19 09:55:53,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:53,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:53,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:53,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:53,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:53,667 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:53,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1486769870, now seen corresponding path program 21 times [2024-11-19 09:55:53,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:53,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504995357] [2024-11-19 09:55:53,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:53,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:53,672 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:55:53,672 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:53,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:53,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504995357] [2024-11-19 09:55:53,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504995357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:53,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475873507] [2024-11-19 09:55:53,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:53,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:53,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:53,764 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:53,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-19 09:55:53,799 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:55:53,799 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:53,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:53,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:53,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:54,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:54,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475873507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:54,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:54,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:54,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946287007] [2024-11-19 09:55:54,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:54,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:54,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:54,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:54,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:54,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:54,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 290 transitions, 6619 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:54,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:54,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:54,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:54,561 INFO L124 PetriNetUnfolderBase]: 1039/2262 cut-off events. [2024-11-19 09:55:54,561 INFO L125 PetriNetUnfolderBase]: For 28430/28430 co-relation queries the response was YES. [2024-11-19 09:55:54,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14552 conditions, 2262 events. 1039/2262 cut-off events. For 28430/28430 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 16406 event pairs, 162 based on Foata normal form. 5/2267 useless extension candidates. Maximal degree in co-relation 14476. Up to 1165 conditions per place. [2024-11-19 09:55:54,574 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 141 selfloop transitions, 158 changer transitions 21/321 dead transitions. [2024-11-19 09:55:54,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 321 transitions, 7427 flow [2024-11-19 09:55:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 09:55:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 09:55:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 120 transitions. [2024-11-19 09:55:54,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38461538461538464 [2024-11-19 09:55:54,575 INFO L175 Difference]: Start difference. First operand has 269 places, 290 transitions, 6619 flow. Second operand 13 states and 120 transitions. [2024-11-19 09:55:54,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 321 transitions, 7427 flow [2024-11-19 09:55:54,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 321 transitions, 6913 flow, removed 57 selfloop flow, removed 20 redundant places. [2024-11-19 09:55:54,666 INFO L231 Difference]: Finished difference. Result has 242 places, 278 transitions, 6132 flow [2024-11-19 09:55:54,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6119, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6132, PETRI_PLACES=242, PETRI_TRANSITIONS=278} [2024-11-19 09:55:54,667 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 216 predicate places. [2024-11-19 09:55:54,667 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 278 transitions, 6132 flow [2024-11-19 09:55:54,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:54,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:54,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:54,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:54,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-19 09:55:54,868 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:54,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:54,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1857611750, now seen corresponding path program 22 times [2024-11-19 09:55:54,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:54,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864939703] [2024-11-19 09:55:54,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:54,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:54,871 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:54,871 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:54,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:54,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:54,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864939703] [2024-11-19 09:55:54,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864939703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:54,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759711380] [2024-11-19 09:55:54,979 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:55:54,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:54,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:54,981 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:54,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-19 09:55:55,025 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:55:55,026 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:55,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:55,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:55,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:55,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:55,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759711380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:55,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:55,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:55,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710196784] [2024-11-19 09:55:55,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:55,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:55,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:55,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:55,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:55,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:55,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 278 transitions, 6132 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:55,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:55,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:55,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:55,861 INFO L124 PetriNetUnfolderBase]: 993/2141 cut-off events. [2024-11-19 09:55:55,861 INFO L125 PetriNetUnfolderBase]: For 23584/23584 co-relation queries the response was YES. [2024-11-19 09:55:55,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13582 conditions, 2141 events. 993/2141 cut-off events. For 23584/23584 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 15171 event pairs, 108 based on Foata normal form. 10/2151 useless extension candidates. Maximal degree in co-relation 13515. Up to 725 conditions per place. [2024-11-19 09:55:55,875 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 105 selfloop transitions, 173 changer transitions 39/318 dead transitions. [2024-11-19 09:55:55,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 318 transitions, 7177 flow [2024-11-19 09:55:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 09:55:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 09:55:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 132 transitions. [2024-11-19 09:55:55,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2024-11-19 09:55:55,876 INFO L175 Difference]: Start difference. First operand has 242 places, 278 transitions, 6132 flow. Second operand 15 states and 132 transitions. [2024-11-19 09:55:55,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 318 transitions, 7177 flow [2024-11-19 09:55:55,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 318 transitions, 6935 flow, removed 13 selfloop flow, removed 10 redundant places. [2024-11-19 09:55:55,965 INFO L231 Difference]: Finished difference. Result has 246 places, 256 transitions, 5840 flow [2024-11-19 09:55:55,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5904, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5840, PETRI_PLACES=246, PETRI_TRANSITIONS=256} [2024-11-19 09:55:55,965 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 220 predicate places. [2024-11-19 09:55:55,966 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 256 transitions, 5840 flow [2024-11-19 09:55:55,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:55,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:55,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:55,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:56,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:56,167 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:56,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:56,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2030859442, now seen corresponding path program 23 times [2024-11-19 09:55:56,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:56,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313957036] [2024-11-19 09:55:56,167 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:56,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:56,172 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:56,172 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:56,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:56,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313957036] [2024-11-19 09:55:56,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313957036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:56,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033406980] [2024-11-19 09:55:56,246 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:55:56,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:56,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:56,248 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:56,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-19 09:55:56,291 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:56,291 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:56,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 09:55:56,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:56,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:56,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033406980] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:56,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:56,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-19 09:55:56,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708354877] [2024-11-19 09:55:56,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:56,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 09:55:56,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:56,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 09:55:56,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-19 09:55:56,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:56,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 256 transitions, 5840 flow. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:56,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:56,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:56,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:56,896 INFO L124 PetriNetUnfolderBase]: 857/1815 cut-off events. [2024-11-19 09:55:56,896 INFO L125 PetriNetUnfolderBase]: For 22117/22117 co-relation queries the response was YES. [2024-11-19 09:55:56,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12417 conditions, 1815 events. 857/1815 cut-off events. For 22117/22117 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 12179 event pairs, 150 based on Foata normal form. 6/1821 useless extension candidates. Maximal degree in co-relation 12349. Up to 829 conditions per place. [2024-11-19 09:55:56,911 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 141 selfloop transitions, 85 changer transitions 56/283 dead transitions. [2024-11-19 09:55:56,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 283 transitions, 6658 flow [2024-11-19 09:55:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 09:55:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 09:55:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 93 transitions. [2024-11-19 09:55:56,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3875 [2024-11-19 09:55:56,913 INFO L175 Difference]: Start difference. First operand has 246 places, 256 transitions, 5840 flow. Second operand 10 states and 93 transitions. [2024-11-19 09:55:56,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 283 transitions, 6658 flow [2024-11-19 09:55:57,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 283 transitions, 6238 flow, removed 32 selfloop flow, removed 11 redundant places. [2024-11-19 09:55:57,005 INFO L231 Difference]: Finished difference. Result has 241 places, 217 transitions, 4654 flow [2024-11-19 09:55:57,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5444, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4654, PETRI_PLACES=241, PETRI_TRANSITIONS=217} [2024-11-19 09:55:57,005 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 215 predicate places. [2024-11-19 09:55:57,005 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 217 transitions, 4654 flow [2024-11-19 09:55:57,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:57,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:57,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:57,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-19 09:55:57,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-19 09:55:57,206 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:57,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:57,207 INFO L85 PathProgramCache]: Analyzing trace with hash 879237742, now seen corresponding path program 24 times [2024-11-19 09:55:57,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:57,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91465030] [2024-11-19 09:55:57,207 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:57,212 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:57,212 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:57,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:57,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91465030] [2024-11-19 09:55:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91465030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:57,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480143159] [2024-11-19 09:55:57,318 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:55:57,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:57,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:57,319 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:57,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-19 09:55:57,358 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-19 09:55:57,358 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:57,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:57,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:57,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:57,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:57,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480143159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:57,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:57,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657719000] [2024-11-19 09:55:57,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:57,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:57,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:57,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:57,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 217 transitions, 4654 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:57,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:57,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:57,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:58,079 INFO L124 PetriNetUnfolderBase]: 660/1411 cut-off events. [2024-11-19 09:55:58,079 INFO L125 PetriNetUnfolderBase]: For 18825/18825 co-relation queries the response was YES. [2024-11-19 09:55:58,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9311 conditions, 1411 events. 660/1411 cut-off events. For 18825/18825 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8939 event pairs, 53 based on Foata normal form. 11/1422 useless extension candidates. Maximal degree in co-relation 9243. Up to 310 conditions per place. [2024-11-19 09:55:58,088 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 90 selfloop transitions, 72 changer transitions 87/250 dead transitions. [2024-11-19 09:55:58,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 250 transitions, 5329 flow [2024-11-19 09:55:58,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 09:55:58,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 09:55:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 139 transitions. [2024-11-19 09:55:58,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3619791666666667 [2024-11-19 09:55:58,089 INFO L175 Difference]: Start difference. First operand has 241 places, 217 transitions, 4654 flow. Second operand 16 states and 139 transitions. [2024-11-19 09:55:58,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 250 transitions, 5329 flow [2024-11-19 09:55:58,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 250 transitions, 4827 flow, removed 34 selfloop flow, removed 22 redundant places. [2024-11-19 09:55:58,183 INFO L231 Difference]: Finished difference. Result has 228 places, 146 transitions, 2679 flow [2024-11-19 09:55:58,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4167, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2679, PETRI_PLACES=228, PETRI_TRANSITIONS=146} [2024-11-19 09:55:58,183 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 202 predicate places. [2024-11-19 09:55:58,183 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 146 transitions, 2679 flow [2024-11-19 09:55:58,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:58,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:58,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:58,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:58,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:58,385 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:58,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash -156572698, now seen corresponding path program 25 times [2024-11-19 09:55:58,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:58,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814242791] [2024-11-19 09:55:58,385 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:58,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:58,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:58,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814242791] [2024-11-19 09:55:58,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814242791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:58,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119951396] [2024-11-19 09:55:58,484 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:55:58,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:58,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:58,485 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:58,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-19 09:55:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:55:58,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:55:58,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:58,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:58,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119951396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:58,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:58,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-19 09:55:58,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671060308] [2024-11-19 09:55:58,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:58,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:55:58,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:58,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:55:58,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:55:58,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:55:58,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 146 transitions, 2679 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:58,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:58,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:55:58,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:59,034 INFO L124 PetriNetUnfolderBase]: 418/861 cut-off events. [2024-11-19 09:55:59,034 INFO L125 PetriNetUnfolderBase]: For 9248/9248 co-relation queries the response was YES. [2024-11-19 09:55:59,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5309 conditions, 861 events. 418/861 cut-off events. For 9248/9248 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4517 event pairs, 15 based on Foata normal form. 4/865 useless extension candidates. Maximal degree in co-relation 5250. Up to 185 conditions per place. [2024-11-19 09:55:59,039 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 89 selfloop transitions, 51 changer transitions 35/176 dead transitions. [2024-11-19 09:55:59,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 176 transitions, 3133 flow [2024-11-19 09:55:59,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 09:55:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 09:55:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 122 transitions. [2024-11-19 09:55:59,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3630952380952381 [2024-11-19 09:55:59,040 INFO L175 Difference]: Start difference. First operand has 228 places, 146 transitions, 2679 flow. Second operand 14 states and 122 transitions. [2024-11-19 09:55:59,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 176 transitions, 3133 flow [2024-11-19 09:55:59,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 176 transitions, 2809 flow, removed 27 selfloop flow, removed 22 redundant places. [2024-11-19 09:55:59,065 INFO L231 Difference]: Finished difference. Result has 190 places, 118 transitions, 2007 flow [2024-11-19 09:55:59,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2365, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2007, PETRI_PLACES=190, PETRI_TRANSITIONS=118} [2024-11-19 09:55:59,065 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 164 predicate places. [2024-11-19 09:55:59,065 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 118 transitions, 2007 flow [2024-11-19 09:55:59,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:59,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:59,066 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:59,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:59,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:59,266 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:59,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1592325470, now seen corresponding path program 26 times [2024-11-19 09:55:59,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:59,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020076833] [2024-11-19 09:55:59,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:59,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:59,272 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:59,272 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:59,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020076833] [2024-11-19 09:55:59,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020076833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:59,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837891187] [2024-11-19 09:55:59,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:55:59,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:59,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:59,311 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:59,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-19 09:55:59,357 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:55:59,358 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:59,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 09:55:59,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:59,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:59,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837891187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:59,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:59,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-19 09:55:59,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557708205] [2024-11-19 09:55:59,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:59,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 09:55:59,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 09:55:59,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-19 09:55:59,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:59,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 118 transitions, 2007 flow. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:59,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:59,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:59,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:55:59,585 INFO L124 PetriNetUnfolderBase]: 263/600 cut-off events. [2024-11-19 09:55:59,585 INFO L125 PetriNetUnfolderBase]: For 6702/6702 co-relation queries the response was YES. [2024-11-19 09:55:59,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3662 conditions, 600 events. 263/600 cut-off events. For 6702/6702 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3104 event pairs, 51 based on Foata normal form. 10/604 useless extension candidates. Maximal degree in co-relation 3609. Up to 238 conditions per place. [2024-11-19 09:55:59,590 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 67 selfloop transitions, 38 changer transitions 7/137 dead transitions. [2024-11-19 09:55:59,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 137 transitions, 2287 flow [2024-11-19 09:55:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:55:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:55:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 102 transitions. [2024-11-19 09:55:59,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2024-11-19 09:55:59,591 INFO L175 Difference]: Start difference. First operand has 190 places, 118 transitions, 2007 flow. Second operand 9 states and 102 transitions. [2024-11-19 09:55:59,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 137 transitions, 2287 flow [2024-11-19 09:55:59,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 137 transitions, 1995 flow, removed 18 selfloop flow, removed 22 redundant places. [2024-11-19 09:55:59,612 INFO L231 Difference]: Finished difference. Result has 163 places, 112 transitions, 1690 flow [2024-11-19 09:55:59,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1705, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1690, PETRI_PLACES=163, PETRI_TRANSITIONS=112} [2024-11-19 09:55:59,613 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 137 predicate places. [2024-11-19 09:55:59,613 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 112 transitions, 1690 flow [2024-11-19 09:55:59,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:59,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:55:59,613 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:55:59,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-19 09:55:59,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:59,814 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:55:59,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:55:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1067328183, now seen corresponding path program 27 times [2024-11-19 09:55:59,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:55:59,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106395772] [2024-11-19 09:55:59,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:59,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:55:59,822 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:55:59,822 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:59,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:55:59,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106395772] [2024-11-19 09:55:59,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106395772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:55:59,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811288995] [2024-11-19 09:55:59,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:55:59,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:55:59,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:55:59,857 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:55:59,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-19 09:55:59,901 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:55:59,901 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:55:59,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 09:55:59,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:55:59,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:59,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:55:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:55:59,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811288995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:55:59,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:55:59,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-19 09:55:59,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264549064] [2024-11-19 09:55:59,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:55:59,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 09:55:59,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:55:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 09:55:59,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-19 09:55:59,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:55:59,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 112 transitions, 1690 flow. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:55:59,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:55:59,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:55:59,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:00,133 INFO L124 PetriNetUnfolderBase]: 256/573 cut-off events. [2024-11-19 09:56:00,133 INFO L125 PetriNetUnfolderBase]: For 4650/4650 co-relation queries the response was YES. [2024-11-19 09:56:00,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3199 conditions, 573 events. 256/573 cut-off events. For 4650/4650 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2826 event pairs, 27 based on Foata normal form. 6/573 useless extension candidates. Maximal degree in co-relation 3151. Up to 184 conditions per place. [2024-11-19 09:56:00,136 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 71 selfloop transitions, 36 changer transitions 0/128 dead transitions. [2024-11-19 09:56:00,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 128 transitions, 1892 flow [2024-11-19 09:56:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 09:56:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 09:56:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 106 transitions. [2024-11-19 09:56:00,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44166666666666665 [2024-11-19 09:56:00,137 INFO L175 Difference]: Start difference. First operand has 163 places, 112 transitions, 1690 flow. Second operand 10 states and 106 transitions. [2024-11-19 09:56:00,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 128 transitions, 1892 flow [2024-11-19 09:56:00,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 128 transitions, 1745 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-19 09:56:00,149 INFO L231 Difference]: Finished difference. Result has 157 places, 111 transitions, 1605 flow [2024-11-19 09:56:00,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1420, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1605, PETRI_PLACES=157, PETRI_TRANSITIONS=111} [2024-11-19 09:56:00,149 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 131 predicate places. [2024-11-19 09:56:00,149 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 111 transitions, 1605 flow [2024-11-19 09:56:00,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:00,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:00,150 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:00,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:00,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-19 09:56:00,350 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:00,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -835876326, now seen corresponding path program 28 times [2024-11-19 09:56:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:00,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815567443] [2024-11-19 09:56:00,351 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:56:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:00,355 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:56:00,355 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:00,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:00,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815567443] [2024-11-19 09:56:00,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815567443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570947693] [2024-11-19 09:56:00,394 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:56:00,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:00,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:00,396 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:00,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-19 09:56:00,434 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:56:00,434 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:00,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 09:56:00,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:00,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:00,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570947693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:00,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:00,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-19 09:56:00,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575759755] [2024-11-19 09:56:00,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:00,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 09:56:00,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:00,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 09:56:00,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-19 09:56:00,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-19 09:56:00,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 111 transitions, 1605 flow. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:00,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:00,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-19 09:56:00,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:00,670 INFO L124 PetriNetUnfolderBase]: 292/660 cut-off events. [2024-11-19 09:56:00,670 INFO L125 PetriNetUnfolderBase]: For 5077/5077 co-relation queries the response was YES. [2024-11-19 09:56:00,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3632 conditions, 660 events. 292/660 cut-off events. For 5077/5077 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3430 event pairs, 93 based on Foata normal form. 12/666 useless extension candidates. Maximal degree in co-relation 3582. Up to 205 conditions per place. [2024-11-19 09:56:00,673 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 86 selfloop transitions, 43 changer transitions 7/153 dead transitions. [2024-11-19 09:56:00,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 153 transitions, 2179 flow [2024-11-19 09:56:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 09:56:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 09:56:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 146 transitions. [2024-11-19 09:56:00,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46794871794871795 [2024-11-19 09:56:00,674 INFO L175 Difference]: Start difference. First operand has 157 places, 111 transitions, 1605 flow. Second operand 13 states and 146 transitions. [2024-11-19 09:56:00,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 153 transitions, 2179 flow [2024-11-19 09:56:00,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 153 transitions, 2132 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-19 09:56:00,687 INFO L231 Difference]: Finished difference. Result has 165 places, 118 transitions, 1806 flow [2024-11-19 09:56:00,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1498, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1806, PETRI_PLACES=165, PETRI_TRANSITIONS=118} [2024-11-19 09:56:00,688 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 139 predicate places. [2024-11-19 09:56:00,688 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 118 transitions, 1806 flow [2024-11-19 09:56:00,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:00,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:00,688 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:00,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:00,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:00,888 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:00,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:00,889 INFO L85 PathProgramCache]: Analyzing trace with hash -499102353, now seen corresponding path program 29 times [2024-11-19 09:56:00,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:00,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816601543] [2024-11-19 09:56:00,889 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:56:00,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:00,892 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-19 09:56:00,893 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:56:00,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:00,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816601543] [2024-11-19 09:56:00,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816601543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:00,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830340790] [2024-11-19 09:56:00,952 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:56:00,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:00,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:00,953 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:00,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-19 09:56:00,990 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-19 09:56:00,990 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:00,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 09:56:00,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:56:01,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:56:01,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830340790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:56:01,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:56:01,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2024-11-19 09:56:01,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255026167] [2024-11-19 09:56:01,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:56:01,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:56:01,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:01,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:56:01,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-19 09:56:01,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:56:01,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 118 transitions, 1806 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:01,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:01,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:56:01,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:01,181 INFO L124 PetriNetUnfolderBase]: 350/726 cut-off events. [2024-11-19 09:56:01,181 INFO L125 PetriNetUnfolderBase]: For 4907/4907 co-relation queries the response was YES. [2024-11-19 09:56:01,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4066 conditions, 726 events. 350/726 cut-off events. For 4907/4907 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3509 event pairs, 92 based on Foata normal form. 1/727 useless extension candidates. Maximal degree in co-relation 4013. Up to 374 conditions per place. [2024-11-19 09:56:01,185 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 89 selfloop transitions, 32 changer transitions 12/134 dead transitions. [2024-11-19 09:56:01,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 134 transitions, 2128 flow [2024-11-19 09:56:01,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:56:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:56:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 83 transitions. [2024-11-19 09:56:01,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38425925925925924 [2024-11-19 09:56:01,186 INFO L175 Difference]: Start difference. First operand has 165 places, 118 transitions, 1806 flow. Second operand 9 states and 83 transitions. [2024-11-19 09:56:01,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 134 transitions, 2128 flow [2024-11-19 09:56:01,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 134 transitions, 2064 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-19 09:56:01,202 INFO L231 Difference]: Finished difference. Result has 168 places, 115 transitions, 1764 flow [2024-11-19 09:56:01,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1742, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1764, PETRI_PLACES=168, PETRI_TRANSITIONS=115} [2024-11-19 09:56:01,202 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 142 predicate places. [2024-11-19 09:56:01,202 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 115 transitions, 1764 flow [2024-11-19 09:56:01,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:01,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:01,203 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:01,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:01,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:01,403 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:01,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:01,404 INFO L85 PathProgramCache]: Analyzing trace with hash 535132163, now seen corresponding path program 30 times [2024-11-19 09:56:01,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:01,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074824453] [2024-11-19 09:56:01,404 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:56:01,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:01,408 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:56:01,408 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:01,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:01,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074824453] [2024-11-19 09:56:01,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074824453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:01,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490416764] [2024-11-19 09:56:01,511 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:56:01,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:01,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:01,513 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:01,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-19 09:56:01,549 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:56:01,550 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:01,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:56:01,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:01,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:01,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490416764] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:01,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:01,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-19 09:56:01,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801741626] [2024-11-19 09:56:01,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:01,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-19 09:56:01,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:01,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-19 09:56:01,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2024-11-19 09:56:01,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:56:01,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 115 transitions, 1764 flow. Second operand has 25 states, 25 states have (on average 5.56) internal successors, (139), 25 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:01,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:01,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:56:01,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:02,470 INFO L124 PetriNetUnfolderBase]: 499/972 cut-off events. [2024-11-19 09:56:02,471 INFO L125 PetriNetUnfolderBase]: For 7367/7367 co-relation queries the response was YES. [2024-11-19 09:56:02,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5987 conditions, 972 events. 499/972 cut-off events. For 7367/7367 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4963 event pairs, 19 based on Foata normal form. 7/979 useless extension candidates. Maximal degree in co-relation 5933. Up to 202 conditions per place. [2024-11-19 09:56:02,475 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 39 selfloop transitions, 21 changer transitions 195/256 dead transitions. [2024-11-19 09:56:02,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 256 transitions, 3816 flow [2024-11-19 09:56:02,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-19 09:56:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-19 09:56:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 268 transitions. [2024-11-19 09:56:02,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3284313725490196 [2024-11-19 09:56:02,476 INFO L175 Difference]: Start difference. First operand has 168 places, 115 transitions, 1764 flow. Second operand 34 states and 268 transitions. [2024-11-19 09:56:02,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 256 transitions, 3816 flow [2024-11-19 09:56:02,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 256 transitions, 3620 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-19 09:56:02,497 INFO L231 Difference]: Finished difference. Result has 195 places, 48 transitions, 727 flow [2024-11-19 09:56:02,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1660, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=727, PETRI_PLACES=195, PETRI_TRANSITIONS=48} [2024-11-19 09:56:02,497 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 169 predicate places. [2024-11-19 09:56:02,497 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 48 transitions, 727 flow [2024-11-19 09:56:02,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.56) internal successors, (139), 25 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:02,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:02,497 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:02,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-19 09:56:02,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-19 09:56:02,698 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:02,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:02,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1749711263, now seen corresponding path program 31 times [2024-11-19 09:56:02,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:02,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421184937] [2024-11-19 09:56:02,699 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:56:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:02,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421184937] [2024-11-19 09:56:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421184937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912335868] [2024-11-19 09:56:02,828 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:56:02,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:02,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:02,829 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:02,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-19 09:56:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:56:02,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:56:02,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:02,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:03,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912335868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:03,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:03,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-19 09:56:03,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696737892] [2024-11-19 09:56:03,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:03,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-19 09:56:03,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:03,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-19 09:56:03,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-11-19 09:56:03,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:56:03,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 48 transitions, 727 flow. Second operand has 27 states, 27 states have (on average 5.333333333333333) internal successors, (144), 27 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:03,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:03,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:56:03,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:03,492 INFO L124 PetriNetUnfolderBase]: 97/221 cut-off events. [2024-11-19 09:56:03,492 INFO L125 PetriNetUnfolderBase]: For 2201/2201 co-relation queries the response was YES. [2024-11-19 09:56:03,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 221 events. 97/221 cut-off events. For 2201/2201 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 743 event pairs, 11 based on Foata normal form. 1/222 useless extension candidates. Maximal degree in co-relation 1416. Up to 61 conditions per place. [2024-11-19 09:56:03,494 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 25 selfloop transitions, 11 changer transitions 39/76 dead transitions. [2024-11-19 09:56:03,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 76 transitions, 1099 flow [2024-11-19 09:56:03,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 09:56:03,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 09:56:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 121 transitions. [2024-11-19 09:56:03,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3151041666666667 [2024-11-19 09:56:03,496 INFO L175 Difference]: Start difference. First operand has 195 places, 48 transitions, 727 flow. Second operand 16 states and 121 transitions. [2024-11-19 09:56:03,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 76 transitions, 1099 flow [2024-11-19 09:56:03,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 76 transitions, 648 flow, removed 46 selfloop flow, removed 54 redundant places. [2024-11-19 09:56:03,502 INFO L231 Difference]: Finished difference. Result has 104 places, 30 transitions, 219 flow [2024-11-19 09:56:03,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=219, PETRI_PLACES=104, PETRI_TRANSITIONS=30} [2024-11-19 09:56:03,503 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 78 predicate places. [2024-11-19 09:56:03,503 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 30 transitions, 219 flow [2024-11-19 09:56:03,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.333333333333333) internal successors, (144), 27 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:03,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:03,503 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:03,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:03,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-19 09:56:03,704 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:03,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:03,704 INFO L85 PathProgramCache]: Analyzing trace with hash 667346305, now seen corresponding path program 32 times [2024-11-19 09:56:03,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:03,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657971390] [2024-11-19 09:56:03,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:56:03,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:03,708 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:56:03,708 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:03,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:03,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:03,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657971390] [2024-11-19 09:56:03,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657971390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:03,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836508848] [2024-11-19 09:56:03,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:56:03,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:03,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:03,831 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:03,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-19 09:56:03,879 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:56:03,879 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:03,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:56:03,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:04,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:04,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836508848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:04,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:04,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-11-19 09:56:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042062046] [2024-11-19 09:56:04,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:04,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 09:56:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 09:56:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2024-11-19 09:56:04,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:56:04,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 30 transitions, 219 flow. Second operand has 28 states, 28 states have (on average 5.357142857142857) internal successors, (150), 28 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:04,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:04,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:56:04,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:04,512 INFO L124 PetriNetUnfolderBase]: 49/118 cut-off events. [2024-11-19 09:56:04,512 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-19 09:56:04,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 118 events. 49/118 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 295 event pairs, 0 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 457. Up to 28 conditions per place. [2024-11-19 09:56:04,513 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 26 selfloop transitions, 11 changer transitions 14/52 dead transitions. [2024-11-19 09:56:04,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 52 transitions, 369 flow [2024-11-19 09:56:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 09:56:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 09:56:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 109 transitions. [2024-11-19 09:56:04,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30277777777777776 [2024-11-19 09:56:04,514 INFO L175 Difference]: Start difference. First operand has 104 places, 30 transitions, 219 flow. Second operand 15 states and 109 transitions. [2024-11-19 09:56:04,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 52 transitions, 369 flow [2024-11-19 09:56:04,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 52 transitions, 302 flow, removed 4 selfloop flow, removed 19 redundant places. [2024-11-19 09:56:04,515 INFO L231 Difference]: Finished difference. Result has 80 places, 25 transitions, 140 flow [2024-11-19 09:56:04,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=140, PETRI_PLACES=80, PETRI_TRANSITIONS=25} [2024-11-19 09:56:04,516 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-11-19 09:56:04,516 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 25 transitions, 140 flow [2024-11-19 09:56:04,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.357142857142857) internal successors, (150), 28 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:04,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:56:04,516 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:56:04,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:04,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:04,717 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:56:04,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:56:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1721765461, now seen corresponding path program 33 times [2024-11-19 09:56:04,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:56:04,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094352933] [2024-11-19 09:56:04,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:56:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:56:04,722 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:56:04,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:56:04,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:56:04,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094352933] [2024-11-19 09:56:04,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094352933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:56:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502489168] [2024-11-19 09:56:04,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:56:04,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:04,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:56:04,781 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:56:04,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-19 09:56:04,817 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:56:04,818 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:56:04,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:56:04,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:56:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:04,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:56:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:56:05,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502489168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:56:05,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:56:05,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 25 [2024-11-19 09:56:05,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229635021] [2024-11-19 09:56:05,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:56:05,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-19 09:56:05,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:56:05,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-19 09:56:05,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2024-11-19 09:56:05,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-19 09:56:05,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 25 transitions, 140 flow. Second operand has 26 states, 26 states have (on average 5.653846153846154) internal successors, (147), 26 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:05,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:56:05,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-19 09:56:05,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:56:05,380 INFO L124 PetriNetUnfolderBase]: 32/76 cut-off events. [2024-11-19 09:56:05,380 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-19 09:56:05,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 76 events. 32/76 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 124 event pairs, 0 based on Foata normal form. 1/77 useless extension candidates. Maximal degree in co-relation 272. Up to 21 conditions per place. [2024-11-19 09:56:05,381 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-11-19 09:56:05,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 37 transitions, 238 flow [2024-11-19 09:56:05,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 09:56:05,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 09:56:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 88 transitions. [2024-11-19 09:56:05,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28205128205128205 [2024-11-19 09:56:05,382 INFO L175 Difference]: Start difference. First operand has 80 places, 25 transitions, 140 flow. Second operand 13 states and 88 transitions. [2024-11-19 09:56:05,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 37 transitions, 238 flow [2024-11-19 09:56:05,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 37 transitions, 190 flow, removed 6 selfloop flow, removed 15 redundant places. [2024-11-19 09:56:05,382 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2024-11-19 09:56:05,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2024-11-19 09:56:05,383 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 39 predicate places. [2024-11-19 09:56:05,383 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2024-11-19 09:56:05,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.653846153846154) internal successors, (147), 26 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:56:05,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-19 09:56:05,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-19 09:56:05,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-19 09:56:05,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-19 09:56:05,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-19 09:56:05,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:56:05,588 INFO L407 BasicCegarLoop]: Path program histogram: [33, 17, 6, 6] [2024-11-19 09:56:05,591 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:56:05,591 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:56:05,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:56:05 BasicIcfg [2024-11-19 09:56:05,595 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:56:05,595 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:56:05,595 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:56:05,596 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:56:05,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:55:11" (3/4) ... [2024-11-19 09:56:05,597 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:56:05,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 09:56:05,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 09:56:05,604 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2024-11-19 09:56:05,604 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-19 09:56:05,604 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 09:56:05,604 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 09:56:05,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:56:05,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:56:05,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:56:05,679 INFO L158 Benchmark]: Toolchain (without parser) took 55047.24ms. Allocated memory was 155.2MB in the beginning and 690.0MB in the end (delta: 534.8MB). Free memory was 127.4MB in the beginning and 547.3MB in the end (delta: -420.0MB). Peak memory consumption was 114.2MB. Max. memory is 16.1GB. [2024-11-19 09:56:05,679 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:56:05,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.97ms. Allocated memory is still 155.2MB. Free memory was 126.7MB in the beginning and 114.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 09:56:05,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.90ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 112.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:56:05,680 INFO L158 Benchmark]: Boogie Preprocessor took 40.94ms. Allocated memory is still 155.2MB. Free memory was 112.2MB in the beginning and 111.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:56:05,680 INFO L158 Benchmark]: RCFGBuilder took 504.63ms. Allocated memory is still 155.2MB. Free memory was 111.0MB in the beginning and 91.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 09:56:05,680 INFO L158 Benchmark]: TraceAbstraction took 54092.51ms. Allocated memory was 155.2MB in the beginning and 690.0MB in the end (delta: 534.8MB). Free memory was 90.1MB in the beginning and 552.0MB in the end (delta: -462.0MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2024-11-19 09:56:05,681 INFO L158 Benchmark]: Witness Printer took 83.21ms. Allocated memory is still 690.0MB. Free memory was 552.0MB in the beginning and 547.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:56:05,683 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.97ms. Allocated memory is still 155.2MB. Free memory was 126.7MB in the beginning and 114.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.90ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 112.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.94ms. Allocated memory is still 155.2MB. Free memory was 112.2MB in the beginning and 111.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.63ms. Allocated memory is still 155.2MB. Free memory was 111.0MB in the beginning and 91.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 54092.51ms. Allocated memory was 155.2MB in the beginning and 690.0MB in the end (delta: 534.8MB). Free memory was 90.1MB in the beginning and 552.0MB in the end (delta: -462.0MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Witness Printer took 83.21ms. Allocated memory is still 690.0MB. Free memory was 552.0MB in the beginning and 547.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 61]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 54.0s, OverallIterations: 62, TraceHistogramMax: 2, PathProgramHistogramMax: 33, EmptinessCheckTime: 0.0s, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3489 SdHoareTripleChecker+Valid, 12.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3438 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 748 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24479 IncrementalHoareTripleChecker+Invalid, 25227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 748 mSolverCounterUnsat, 10 mSDtfsCounter, 24479 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2237 GetRequests, 999 SyntacticMatches, 8 SemanticMatches, 1230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8951 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6619occurred in iteration=49, InterpolantAutomatonStates: 810, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 1839 NumberOfCodeBlocks, 1839 NumberOfCodeBlocksAsserted, 183 NumberOfCheckSat, 2325 ConstructedInterpolants, 0 QuantifiedInterpolants, 13115 SizeOfPredicates, 118 NumberOfNonLiveVariables, 3558 ConjunctsInSsa, 453 ConjunctsInUnsatCore, 130 InterpolantComputations, 32 PerfectInterpolantSequences, 57/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 09:56:05,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE