./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.09.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3945fa4b58cef50cb4b44b435a699812e99a1f6375664d08551274c6b50bee45 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:17:26,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:17:26,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:17:26,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:17:26,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:17:26,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:17:26,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:17:26,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:17:26,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:17:26,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:17:26,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:17:26,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:17:26,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:17:26,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:17:26,451 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:17:26,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:17:26,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:17:26,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:17:26,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:17:26,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:17:26,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:17:26,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:17:26,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:17:26,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:17:26,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:17:26,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:17:26,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:17:26,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:17:26,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:17:26,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:17:26,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:17:26,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:17:26,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:26,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:17:26,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:17:26,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:17:26,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:17:26,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:17:26,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:17:26,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:17:26,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:17:26,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:17:26,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3945fa4b58cef50cb4b44b435a699812e99a1f6375664d08551274c6b50bee45 [2024-10-24 01:17:26,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:17:26,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:17:26,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:17:26,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:17:26,700 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:17:26,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.09.cil.c [2024-10-24 01:17:27,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:17:28,189 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:17:28,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.09.cil.c [2024-10-24 01:17:28,207 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610690c15/0815450b86ec45939c7832b8e313af6d/FLAGa10684ad3 [2024-10-24 01:17:28,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610690c15/0815450b86ec45939c7832b8e313af6d [2024-10-24 01:17:28,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:17:28,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:17:28,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:28,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:17:28,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:17:28,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be7a24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28, skipping insertion in model container [2024-10-24 01:17:28,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:17:28,458 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.09.cil.c[706,719] [2024-10-24 01:17:28,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:28,599 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:17:28,609 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.09.cil.c[706,719] [2024-10-24 01:17:28,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:28,698 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:17:28,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28 WrapperNode [2024-10-24 01:17:28,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:28,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:28,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:17:28,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:17:28,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,756 INFO L138 Inliner]: procedures = 46, calls = 57, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 682 [2024-10-24 01:17:28,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:28,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:17:28,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:17:28,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:17:28,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,791 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:17:28,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,809 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:17:28,825 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:17:28,825 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:17:28,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:17:28,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (1/1) ... [2024-10-24 01:17:28,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:17:28,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:17:28,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:17:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:17:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 01:17:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 01:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 01:17:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 01:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 01:17:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 01:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 01:17:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 01:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 01:17:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 01:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 01:17:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 01:17:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:17:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:17:29,033 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:17:29,035 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:17:29,632 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-10-24 01:17:29,633 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:17:29,686 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:17:29,688 INFO L314 CfgBuilder]: Removed 13 assume(true) statements. [2024-10-24 01:17:29,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:29 BoogieIcfgContainer [2024-10-24 01:17:29,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:17:29,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:17:29,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:17:29,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:17:29,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:17:28" (1/3) ... [2024-10-24 01:17:29,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff996dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:29, skipping insertion in model container [2024-10-24 01:17:29,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:28" (2/3) ... [2024-10-24 01:17:29,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff996dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:29, skipping insertion in model container [2024-10-24 01:17:29,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:29" (3/3) ... [2024-10-24 01:17:29,697 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.09.cil.c [2024-10-24 01:17:29,710 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:17:29,711 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:17:29,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:17:29,785 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=LoopHeads, 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;@53849175, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:17:29,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:17:29,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 244 states have (on average 1.7295081967213115) internal successors, (422), 246 states have internal predecessors, (422), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 01:17:29,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:29,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:29,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:29,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:29,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:29,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1125709268, now seen corresponding path program 1 times [2024-10-24 01:17:29,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:29,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993598474] [2024-10-24 01:17:29,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:29,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:30,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:30,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:30,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:30,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:30,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:30,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:30,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993598474] [2024-10-24 01:17:30,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993598474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:30,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:30,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:17:30,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081852195] [2024-10-24 01:17:30,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:30,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:17:30,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:30,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:17:30,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:17:30,410 INFO L87 Difference]: Start difference. First operand has 274 states, 244 states have (on average 1.7295081967213115) internal successors, (422), 246 states have internal predecessors, (422), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:31,707 INFO L93 Difference]: Finished difference Result 642 states and 1100 transitions. [2024-10-24 01:17:31,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:17:31,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:31,724 INFO L225 Difference]: With dead ends: 642 [2024-10-24 01:17:31,724 INFO L226 Difference]: Without dead ends: 370 [2024-10-24 01:17:31,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:17:31,736 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 751 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:31,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 488 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:17:31,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-10-24 01:17:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 272. [2024-10-24 01:17:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 243 states have (on average 1.6131687242798354) internal successors, (392), 244 states have internal predecessors, (392), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 01:17:31,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 436 transitions. [2024-10-24 01:17:31,813 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 436 transitions. Word has length 136 [2024-10-24 01:17:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:31,814 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 436 transitions. [2024-10-24 01:17:31,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 436 transitions. [2024-10-24 01:17:31,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:31,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:31,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:31,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:17:31,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:31,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1670581842, now seen corresponding path program 1 times [2024-10-24 01:17:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:31,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8843327] [2024-10-24 01:17:31,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:31,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:32,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:32,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8843327] [2024-10-24 01:17:32,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8843327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:32,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:32,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:17:32,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864816833] [2024-10-24 01:17:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:32,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:17:32,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:32,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:17:32,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:17:32,042 INFO L87 Difference]: Start difference. First operand 272 states and 436 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:33,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:33,170 INFO L93 Difference]: Finished difference Result 630 states and 1025 transitions. [2024-10-24 01:17:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:17:33,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:33,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:33,174 INFO L225 Difference]: With dead ends: 630 [2024-10-24 01:17:33,174 INFO L226 Difference]: Without dead ends: 370 [2024-10-24 01:17:33,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:17:33,176 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 740 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:33,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 483 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 01:17:33,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-10-24 01:17:33,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 272. [2024-10-24 01:17:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 243 states have (on average 1.6090534979423867) internal successors, (391), 244 states have internal predecessors, (391), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 01:17:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 435 transitions. [2024-10-24 01:17:33,200 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 435 transitions. Word has length 136 [2024-10-24 01:17:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:33,201 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 435 transitions. [2024-10-24 01:17:33,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:33,201 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 435 transitions. [2024-10-24 01:17:33,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:33,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:33,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:33,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:17:33,203 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:33,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:33,204 INFO L85 PathProgramCache]: Analyzing trace with hash 808748240, now seen corresponding path program 1 times [2024-10-24 01:17:33,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:33,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158128385] [2024-10-24 01:17:33,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:33,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:33,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:33,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158128385] [2024-10-24 01:17:33,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158128385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:33,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:33,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:17:33,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435118616] [2024-10-24 01:17:33,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:33,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:17:33,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:33,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:17:33,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:17:33,481 INFO L87 Difference]: Start difference. First operand 272 states and 435 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:35,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:35,365 INFO L93 Difference]: Finished difference Result 994 states and 1639 transitions. [2024-10-24 01:17:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:17:35,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:35,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:35,370 INFO L225 Difference]: With dead ends: 994 [2024-10-24 01:17:35,370 INFO L226 Difference]: Without dead ends: 737 [2024-10-24 01:17:35,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:35,372 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 1122 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:35,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 927 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 01:17:35,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-10-24 01:17:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 542. [2024-10-24 01:17:35,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 489 states have (on average 1.6175869120654396) internal successors, (791), 491 states have internal predecessors, (791), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-10-24 01:17:35,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 872 transitions. [2024-10-24 01:17:35,408 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 872 transitions. Word has length 136 [2024-10-24 01:17:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:35,408 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 872 transitions. [2024-10-24 01:17:35,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 872 transitions. [2024-10-24 01:17:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:35,410 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:35,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:35,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:17:35,411 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:35,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:35,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2127751855, now seen corresponding path program 1 times [2024-10-24 01:17:35,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:35,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825021186] [2024-10-24 01:17:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:35,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:35,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:35,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825021186] [2024-10-24 01:17:35,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825021186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:35,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:35,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:35,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271651963] [2024-10-24 01:17:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:35,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:35,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:35,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:35,616 INFO L87 Difference]: Start difference. First operand 542 states and 872 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:38,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:38,507 INFO L93 Difference]: Finished difference Result 1762 states and 2880 transitions. [2024-10-24 01:17:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:38,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:38,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:38,517 INFO L225 Difference]: With dead ends: 1762 [2024-10-24 01:17:38,517 INFO L226 Difference]: Without dead ends: 1235 [2024-10-24 01:17:38,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:38,520 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1227 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3540 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:38,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 1563 Invalid, 3595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3540 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 01:17:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2024-10-24 01:17:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 792. [2024-10-24 01:17:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 715 states have (on average 1.6097902097902097) internal successors, (1151), 718 states have internal predecessors, (1151), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-10-24 01:17:38,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1268 transitions. [2024-10-24 01:17:38,572 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1268 transitions. Word has length 136 [2024-10-24 01:17:38,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:38,572 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1268 transitions. [2024-10-24 01:17:38,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1268 transitions. [2024-10-24 01:17:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:38,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:38,574 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:38,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:17:38,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:38,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:38,575 INFO L85 PathProgramCache]: Analyzing trace with hash 285276141, now seen corresponding path program 1 times [2024-10-24 01:17:38,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:38,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967780322] [2024-10-24 01:17:38,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:38,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:38,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:38,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967780322] [2024-10-24 01:17:38,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967780322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:38,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:38,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:38,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059853284] [2024-10-24 01:17:38,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:38,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:38,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:38,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:38,794 INFO L87 Difference]: Start difference. First operand 792 states and 1268 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:41,798 INFO L93 Difference]: Finished difference Result 2716 states and 4428 transitions. [2024-10-24 01:17:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:41,809 INFO L225 Difference]: With dead ends: 2716 [2024-10-24 01:17:41,809 INFO L226 Difference]: Without dead ends: 1939 [2024-10-24 01:17:41,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:41,813 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1225 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3536 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:41,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1561 Invalid, 3593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3536 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 01:17:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2024-10-24 01:17:41,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1293. [2024-10-24 01:17:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1168 states have (on average 1.6027397260273972) internal successors, (1872), 1173 states have internal predecessors, (1872), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-24 01:17:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 2065 transitions. [2024-10-24 01:17:41,924 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 2065 transitions. Word has length 136 [2024-10-24 01:17:41,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:41,925 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 2065 transitions. [2024-10-24 01:17:41,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 2065 transitions. [2024-10-24 01:17:41,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:41,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:41,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:41,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:17:41,927 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:41,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:41,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1436726545, now seen corresponding path program 1 times [2024-10-24 01:17:41,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:41,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068307450] [2024-10-24 01:17:41,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:41,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:42,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:42,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:42,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:42,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:42,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:42,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:42,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068307450] [2024-10-24 01:17:42,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068307450] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:42,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:42,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:42,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732559843] [2024-10-24 01:17:42,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:42,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:42,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:42,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:42,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:42,128 INFO L87 Difference]: Start difference. First operand 1293 states and 2065 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:43,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:43,340 INFO L93 Difference]: Finished difference Result 3089 states and 5025 transitions. [2024-10-24 01:17:43,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:43,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:43,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:43,348 INFO L225 Difference]: With dead ends: 3089 [2024-10-24 01:17:43,348 INFO L226 Difference]: Without dead ends: 1811 [2024-10-24 01:17:43,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:43,353 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 824 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:43,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 789 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 01:17:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-10-24 01:17:43,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1293. [2024-10-24 01:17:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1168 states have (on average 1.5984589041095891) internal successors, (1867), 1173 states have internal predecessors, (1867), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-24 01:17:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 2060 transitions. [2024-10-24 01:17:43,420 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 2060 transitions. Word has length 136 [2024-10-24 01:17:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:43,421 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 2060 transitions. [2024-10-24 01:17:43,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 2060 transitions. [2024-10-24 01:17:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:43,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:43,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:43,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:17:43,423 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:43,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1769369683, now seen corresponding path program 1 times [2024-10-24 01:17:43,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:43,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651983387] [2024-10-24 01:17:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:43,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:43,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:43,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:43,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:43,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:43,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:43,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:43,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651983387] [2024-10-24 01:17:43,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651983387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:43,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:43,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:43,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770807328] [2024-10-24 01:17:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:43,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:43,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:43,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:43,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:43,632 INFO L87 Difference]: Start difference. First operand 1293 states and 2060 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:44,761 INFO L93 Difference]: Finished difference Result 3083 states and 4999 transitions. [2024-10-24 01:17:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:44,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:44,770 INFO L225 Difference]: With dead ends: 3083 [2024-10-24 01:17:44,770 INFO L226 Difference]: Without dead ends: 1805 [2024-10-24 01:17:44,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:44,774 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 827 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:44,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 789 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 01:17:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2024-10-24 01:17:44,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1293. [2024-10-24 01:17:44,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1168 states have (on average 1.5941780821917808) internal successors, (1862), 1173 states have internal predecessors, (1862), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-24 01:17:44,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 2055 transitions. [2024-10-24 01:17:44,836 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 2055 transitions. Word has length 136 [2024-10-24 01:17:44,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:44,837 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 2055 transitions. [2024-10-24 01:17:44,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:44,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 2055 transitions. [2024-10-24 01:17:44,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:44,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:44,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:44,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:17:44,839 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:44,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:44,840 INFO L85 PathProgramCache]: Analyzing trace with hash 159562543, now seen corresponding path program 1 times [2024-10-24 01:17:44,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:44,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314428407] [2024-10-24 01:17:44,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:44,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:45,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:45,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:45,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:45,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:45,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314428407] [2024-10-24 01:17:45,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314428407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:45,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:45,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:45,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192393014] [2024-10-24 01:17:45,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:45,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:45,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:45,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:45,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:45,031 INFO L87 Difference]: Start difference. First operand 1293 states and 2055 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:47,501 INFO L93 Difference]: Finished difference Result 4528 states and 7305 transitions. [2024-10-24 01:17:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:47,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:47,515 INFO L225 Difference]: With dead ends: 4528 [2024-10-24 01:17:47,515 INFO L226 Difference]: Without dead ends: 3250 [2024-10-24 01:17:47,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:47,522 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1211 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 3512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:47,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 1561 Invalid, 3512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 01:17:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2024-10-24 01:17:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2309. [2024-10-24 01:17:47,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2088 states have (on average 1.5881226053639848) internal successors, (3316), 2097 states have internal predecessors, (3316), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-10-24 01:17:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3667 transitions. [2024-10-24 01:17:47,668 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3667 transitions. Word has length 136 [2024-10-24 01:17:47,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:47,669 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 3667 transitions. [2024-10-24 01:17:47,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:47,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3667 transitions. [2024-10-24 01:17:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:47,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:47,673 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:47,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:17:47,674 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:47,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1886707505, now seen corresponding path program 1 times [2024-10-24 01:17:47,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:47,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054566530] [2024-10-24 01:17:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:47,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:47,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054566530] [2024-10-24 01:17:47,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054566530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:47,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:47,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:47,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581228404] [2024-10-24 01:17:47,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:47,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:47,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:47,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:47,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:47,839 INFO L87 Difference]: Start difference. First operand 2309 states and 3667 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:48,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:48,786 INFO L93 Difference]: Finished difference Result 5437 states and 8771 transitions. [2024-10-24 01:17:48,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:48,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:48,798 INFO L225 Difference]: With dead ends: 5437 [2024-10-24 01:17:48,798 INFO L226 Difference]: Without dead ends: 3143 [2024-10-24 01:17:48,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:48,806 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 990 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:48,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 661 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 01:17:48,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2024-10-24 01:17:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 2309. [2024-10-24 01:17:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2088 states have (on average 1.5838122605363985) internal successors, (3307), 2097 states have internal predecessors, (3307), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-10-24 01:17:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3658 transitions. [2024-10-24 01:17:48,930 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3658 transitions. Word has length 136 [2024-10-24 01:17:48,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:48,930 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 3658 transitions. [2024-10-24 01:17:48,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3658 transitions. [2024-10-24 01:17:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:48,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:48,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:48,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:17:48,933 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:48,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:48,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1936903441, now seen corresponding path program 1 times [2024-10-24 01:17:48,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:48,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828538943] [2024-10-24 01:17:48,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:48,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:48,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:49,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:49,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:49,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:49,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:49,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:49,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:49,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828538943] [2024-10-24 01:17:49,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828538943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:49,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:49,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:49,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244800067] [2024-10-24 01:17:49,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:49,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:49,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:49,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:49,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:49,084 INFO L87 Difference]: Start difference. First operand 2309 states and 3658 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:51,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:51,747 INFO L93 Difference]: Finished difference Result 8180 states and 13131 transitions. [2024-10-24 01:17:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:51,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:51,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:51,767 INFO L225 Difference]: With dead ends: 8180 [2024-10-24 01:17:51,767 INFO L226 Difference]: Without dead ends: 5886 [2024-10-24 01:17:51,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:51,773 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1203 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 3474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:51,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 1561 Invalid, 3474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3417 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 01:17:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5886 states. [2024-10-24 01:17:51,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5886 to 4351. [2024-10-24 01:17:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3938 states have (on average 1.5782122905027933) internal successors, (6215), 3955 states have internal predecessors, (6215), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-10-24 01:17:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6900 transitions. [2024-10-24 01:17:51,994 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6900 transitions. Word has length 136 [2024-10-24 01:17:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:51,996 INFO L471 AbstractCegarLoop]: Abstraction has 4351 states and 6900 transitions. [2024-10-24 01:17:51,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6900 transitions. [2024-10-24 01:17:52,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:52,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:52,002 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:52,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:17:52,002 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:52,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:52,003 INFO L85 PathProgramCache]: Analyzing trace with hash 710700913, now seen corresponding path program 1 times [2024-10-24 01:17:52,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:52,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122214476] [2024-10-24 01:17:52,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:52,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:52,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:52,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122214476] [2024-10-24 01:17:52,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122214476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:52,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:52,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:52,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720602415] [2024-10-24 01:17:52,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:52,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:52,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:52,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:52,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:52,188 INFO L87 Difference]: Start difference. First operand 4351 states and 6900 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:55,075 INFO L93 Difference]: Finished difference Result 15500 states and 24915 transitions. [2024-10-24 01:17:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:55,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:55,119 INFO L225 Difference]: With dead ends: 15500 [2024-10-24 01:17:55,119 INFO L226 Difference]: Without dead ends: 11164 [2024-10-24 01:17:55,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:55,130 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1202 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 3461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:55,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1561 Invalid, 3461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3404 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 01:17:55,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2024-10-24 01:17:55,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 8448. [2024-10-24 01:17:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8448 states, 7651 states have (on average 1.5748268200235263) internal successors, (12049), 7684 states have internal predecessors, (12049), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-10-24 01:17:55,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8448 states to 8448 states and 13456 transitions. [2024-10-24 01:17:55,585 INFO L78 Accepts]: Start accepts. Automaton has 8448 states and 13456 transitions. Word has length 136 [2024-10-24 01:17:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:55,585 INFO L471 AbstractCegarLoop]: Abstraction has 8448 states and 13456 transitions. [2024-10-24 01:17:55,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:55,586 INFO L276 IsEmpty]: Start isEmpty. Operand 8448 states and 13456 transitions. [2024-10-24 01:17:55,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:17:55,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:55,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:55,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:17:55,596 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:55,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:55,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1420649809, now seen corresponding path program 1 times [2024-10-24 01:17:55,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:55,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376150072] [2024-10-24 01:17:55,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:55,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:17:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:17:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:17:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:17:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:55,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:55,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376150072] [2024-10-24 01:17:55,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376150072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:55,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:55,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:55,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610218292] [2024-10-24 01:17:55,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:55,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:55,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:55,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:55,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:55,750 INFO L87 Difference]: Start difference. First operand 8448 states and 13456 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:59,266 INFO L93 Difference]: Finished difference Result 33531 states and 54115 transitions. [2024-10-24 01:17:59,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:17:59,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:17:59,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:59,345 INFO L225 Difference]: With dead ends: 33531 [2024-10-24 01:17:59,345 INFO L226 Difference]: Without dead ends: 25098 [2024-10-24 01:17:59,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:17:59,370 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 1275 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 3468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:59,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 1536 Invalid, 3468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 01:17:59,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25098 states. [2024-10-24 01:18:00,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25098 to 16577. [2024-10-24 01:18:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16577 states, 15044 states have (on average 1.5753124169103963) internal successors, (23699), 15109 states have internal predecessors, (23699), 1078 states have call successors, (1078), 390 states have call predecessors, (1078), 454 states have return successors, (1871), 1141 states have call predecessors, (1871), 1078 states have call successors, (1871) [2024-10-24 01:18:00,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16577 states to 16577 states and 26648 transitions. [2024-10-24 01:18:00,557 INFO L78 Accepts]: Start accepts. Automaton has 16577 states and 26648 transitions. Word has length 136 [2024-10-24 01:18:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:00,558 INFO L471 AbstractCegarLoop]: Abstraction has 16577 states and 26648 transitions. [2024-10-24 01:18:00,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 16577 states and 26648 transitions. [2024-10-24 01:18:00,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:18:00,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:00,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:00,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:18:00,580 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:00,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1835732913, now seen corresponding path program 1 times [2024-10-24 01:18:00,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:00,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37811275] [2024-10-24 01:18:00,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:00,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:00,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:00,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:18:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:00,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:18:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:00,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:18:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:00,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:18:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:00,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:00,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37811275] [2024-10-24 01:18:00,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37811275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:00,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:00,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:00,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348461242] [2024-10-24 01:18:00,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:00,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:00,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:00,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:00,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:00,732 INFO L87 Difference]: Start difference. First operand 16577 states and 26648 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:02,667 INFO L93 Difference]: Finished difference Result 38277 states and 62602 transitions. [2024-10-24 01:18:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:02,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:18:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:02,742 INFO L225 Difference]: With dead ends: 38277 [2024-10-24 01:18:02,742 INFO L226 Difference]: Without dead ends: 21715 [2024-10-24 01:18:02,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:02,780 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 824 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:02,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 788 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:18:02,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21715 states. [2024-10-24 01:18:03,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21715 to 16577. [2024-10-24 01:18:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16577 states, 15044 states have (on average 1.5709917575113002) internal successors, (23634), 15109 states have internal predecessors, (23634), 1078 states have call successors, (1078), 390 states have call predecessors, (1078), 454 states have return successors, (1871), 1141 states have call predecessors, (1871), 1078 states have call successors, (1871) [2024-10-24 01:18:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16577 states to 16577 states and 26583 transitions. [2024-10-24 01:18:03,825 INFO L78 Accepts]: Start accepts. Automaton has 16577 states and 26583 transitions. Word has length 136 [2024-10-24 01:18:03,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:03,826 INFO L471 AbstractCegarLoop]: Abstraction has 16577 states and 26583 transitions. [2024-10-24 01:18:03,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:03,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16577 states and 26583 transitions. [2024-10-24 01:18:03,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:18:03,848 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:03,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:03,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:18:03,849 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:03,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:03,849 INFO L85 PathProgramCache]: Analyzing trace with hash -137432465, now seen corresponding path program 1 times [2024-10-24 01:18:03,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:03,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042285415] [2024-10-24 01:18:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:03,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:18:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:04,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:18:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:04,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:18:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:04,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:18:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:04,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:04,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042285415] [2024-10-24 01:18:04,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042285415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:04,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:04,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:04,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081312344] [2024-10-24 01:18:04,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:04,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:04,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:04,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:04,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:04,038 INFO L87 Difference]: Start difference. First operand 16577 states and 26583 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:08,922 INFO L93 Difference]: Finished difference Result 64312 states and 104401 transitions. [2024-10-24 01:18:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:18:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:18:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:09,081 INFO L225 Difference]: With dead ends: 64312 [2024-10-24 01:18:09,081 INFO L226 Difference]: Without dead ends: 47750 [2024-10-24 01:18:09,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:09,129 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 1423 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:09,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1536 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 01:18:09,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47750 states. [2024-10-24 01:18:10,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47750 to 32931. [2024-10-24 01:18:10,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32931 states, 29958 states have (on average 1.5698644769343748) internal successors, (47030), 30087 states have internal predecessors, (47030), 2070 states have call successors, (2070), 774 states have call predecessors, (2070), 902 states have return successors, (4385), 2197 states have call predecessors, (4385), 2070 states have call successors, (4385) [2024-10-24 01:18:11,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32931 states to 32931 states and 53485 transitions. [2024-10-24 01:18:11,108 INFO L78 Accepts]: Start accepts. Automaton has 32931 states and 53485 transitions. Word has length 136 [2024-10-24 01:18:11,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:11,109 INFO L471 AbstractCegarLoop]: Abstraction has 32931 states and 53485 transitions. [2024-10-24 01:18:11,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 32931 states and 53485 transitions. [2024-10-24 01:18:11,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:18:11,148 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:11,148 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:11,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:18:11,149 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:11,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:11,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2015674353, now seen corresponding path program 1 times [2024-10-24 01:18:11,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:11,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23303038] [2024-10-24 01:18:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:11,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:11,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:11,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:18:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:11,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:18:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:11,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:18:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:11,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:18:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:11,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:11,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23303038] [2024-10-24 01:18:11,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23303038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:11,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:11,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:11,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586401582] [2024-10-24 01:18:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:11,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:11,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:11,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:11,494 INFO L87 Difference]: Start difference. First operand 32931 states and 53485 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:15,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:15,315 INFO L93 Difference]: Finished difference Result 75395 states and 124793 transitions. [2024-10-24 01:18:15,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:15,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:18:15,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:15,613 INFO L225 Difference]: With dead ends: 75395 [2024-10-24 01:18:15,613 INFO L226 Difference]: Without dead ends: 42479 [2024-10-24 01:18:15,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:15,667 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 827 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:15,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 788 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 01:18:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42479 states. [2024-10-24 01:18:18,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42479 to 32931. [2024-10-24 01:18:18,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32931 states, 29958 states have (on average 1.565558448494559) internal successors, (46901), 30087 states have internal predecessors, (46901), 2070 states have call successors, (2070), 774 states have call predecessors, (2070), 902 states have return successors, (4385), 2197 states have call predecessors, (4385), 2070 states have call successors, (4385) [2024-10-24 01:18:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32931 states to 32931 states and 53356 transitions. [2024-10-24 01:18:18,233 INFO L78 Accepts]: Start accepts. Automaton has 32931 states and 53356 transitions. Word has length 136 [2024-10-24 01:18:18,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:18,233 INFO L471 AbstractCegarLoop]: Abstraction has 32931 states and 53356 transitions. [2024-10-24 01:18:18,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:18,234 INFO L276 IsEmpty]: Start isEmpty. Operand 32931 states and 53356 transitions. [2024-10-24 01:18:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:18:18,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:18,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:18,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:18:18,276 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:18,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2134115827, now seen corresponding path program 1 times [2024-10-24 01:18:18,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:18,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054415964] [2024-10-24 01:18:18,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:18,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:18:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:18:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:18:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:18:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:18,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:18,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054415964] [2024-10-24 01:18:18,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054415964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:18,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:18,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:18,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924902312] [2024-10-24 01:18:18,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:18,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:18,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:18,453 INFO L87 Difference]: Start difference. First operand 32931 states and 53356 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:25,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:25,435 INFO L93 Difference]: Finished difference Result 122580 states and 201261 transitions. [2024-10-24 01:18:25,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:18:25,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:18:25,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:25,771 INFO L225 Difference]: With dead ends: 122580 [2024-10-24 01:18:25,772 INFO L226 Difference]: Without dead ends: 89664 [2024-10-24 01:18:25,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:25,866 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 1279 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:25,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 1012 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2925 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 01:18:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89664 states. [2024-10-24 01:18:30,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89664 to 65894. [2024-10-24 01:18:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65894 states, 60105 states have (on average 1.565177605856418) internal successors, (94075), 60362 states have internal predecessors, (94075), 3990 states have call successors, (3990), 1542 states have call predecessors, (3990), 1798 states have return successors, (10807), 4245 states have call predecessors, (10807), 3990 states have call successors, (10807) [2024-10-24 01:18:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65894 states to 65894 states and 108872 transitions. [2024-10-24 01:18:30,852 INFO L78 Accepts]: Start accepts. Automaton has 65894 states and 108872 transitions. Word has length 136 [2024-10-24 01:18:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:30,852 INFO L471 AbstractCegarLoop]: Abstraction has 65894 states and 108872 transitions. [2024-10-24 01:18:30,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:30,853 INFO L276 IsEmpty]: Start isEmpty. Operand 65894 states and 108872 transitions. [2024-10-24 01:18:30,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:18:30,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:30,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:30,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:18:30,908 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:30,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:30,908 INFO L85 PathProgramCache]: Analyzing trace with hash -771557455, now seen corresponding path program 1 times [2024-10-24 01:18:30,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:30,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335207186] [2024-10-24 01:18:30,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:30,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:30,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:31,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:18:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:31,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 01:18:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:31,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 01:18:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:31,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 01:18:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:31,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:31,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335207186] [2024-10-24 01:18:31,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335207186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:31,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:31,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:31,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004511911] [2024-10-24 01:18:31,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:31,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:31,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:31,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:31,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:31,064 INFO L87 Difference]: Start difference. First operand 65894 states and 108872 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:43,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:43,238 INFO L93 Difference]: Finished difference Result 240789 states and 403655 transitions. [2024-10-24 01:18:43,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:18:43,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-10-24 01:18:43,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:44,135 INFO L225 Difference]: With dead ends: 240789 [2024-10-24 01:18:44,136 INFO L226 Difference]: Without dead ends: 174910 [2024-10-24 01:18:44,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:44,366 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 1270 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 3078 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 3138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:44,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1536 Invalid, 3138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3078 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 01:18:44,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174910 states.