./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.03.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 4edad7c083448b81b05575191757512095bfff0f094103ddb1a592d0cd702494 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:30:59,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:30:59,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:30:59,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:30:59,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:30:59,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:30:59,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:30:59,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:30:59,712 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:30:59,714 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:30:59,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:30:59,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:30:59,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:30:59,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:30:59,718 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:30:59,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:30:59,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:30:59,719 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:30:59,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:30:59,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:30:59,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:30:59,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:30:59,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:30:59,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:30:59,721 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:30:59,721 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:30:59,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:30:59,721 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:30:59,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:30:59,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:30:59,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:30:59,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:30:59,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:30:59,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:30:59,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:30:59,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:30:59,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:30:59,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:30:59,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:30:59,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:30:59,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:30:59,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:30:59,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4edad7c083448b81b05575191757512095bfff0f094103ddb1a592d0cd702494 [2024-11-08 15:30:59,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:30:59,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:30:59,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:30:59,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:30:59,997 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:30:59,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.03.cil.c [2024-11-08 15:31:01,418 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:31:01,657 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:31:01,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.03.cil.c [2024-11-08 15:31:01,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e31f98d/178b07a45e8a4628b1a9591dabafba11/FLAG5d0413bad [2024-11-08 15:31:01,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e31f98d/178b07a45e8a4628b1a9591dabafba11 [2024-11-08 15:31:01,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:31:01,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:31:01,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:31:01,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:31:01,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:31:01,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:31:01" (1/1) ... [2024-11-08 15:31:01,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf6377c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:01, skipping insertion in model container [2024-11-08 15:31:01,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:31:01" (1/1) ... [2024-11-08 15:31:01,746 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:31:01,992 WARN L250 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.03.cil.c[706,719] [2024-11-08 15:31:02,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:31:02,091 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:31:02,102 WARN L250 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.03.cil.c[706,719] [2024-11-08 15:31:02,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:31:02,182 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:31:02,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02 WrapperNode [2024-11-08 15:31:02,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:31:02,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:31:02,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:31:02,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:31:02,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,235 INFO L138 Inliner]: procedures = 34, calls = 39, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 328 [2024-11-08 15:31:02,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:31:02,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:31:02,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:31:02,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:31:02,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,282 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:31:02,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:31:02,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:31:02,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:31:02,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:31:02,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (1/1) ... [2024-11-08 15:31:02,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:31:02,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:02,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:31:02,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:31:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:31:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 15:31:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 15:31:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 15:31:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 15:31:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 15:31:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 15:31:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 15:31:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 15:31:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 15:31:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 15:31:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:31:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 15:31:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 15:31:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:31:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:31:02,488 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:31:02,491 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:31:02,895 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-08 15:31:02,895 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:31:02,910 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:31:02,910 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-08 15:31:02,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:31:02 BoogieIcfgContainer [2024-11-08 15:31:02,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:31:02,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:31:02,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:31:02,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:31:02,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:31:01" (1/3) ... [2024-11-08 15:31:02,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cba6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:31:02, skipping insertion in model container [2024-11-08 15:31:02,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:02" (2/3) ... [2024-11-08 15:31:02,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cba6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:31:02, skipping insertion in model container [2024-11-08 15:31:02,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:31:02" (3/3) ... [2024-11-08 15:31:02,919 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.03.cil.c [2024-11-08 15:31:02,932 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:31:02,933 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:31:02,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:31:02,999 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;@4e9b8663, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:31:03,000 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:31:03,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 133 states have (on average 1.5714285714285714) internal successors, (209), 135 states have internal predecessors, (209), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 15:31:03,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:03,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:03,015 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] [2024-11-08 15:31:03,016 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:03,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:03,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1277389025, now seen corresponding path program 1 times [2024-11-08 15:31:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:03,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430923464] [2024-11-08 15:31:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:03,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:03,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:03,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:03,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:03,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:03,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:03,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:03,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430923464] [2024-11-08 15:31:03,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430923464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:03,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:03,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:31:03,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243473712] [2024-11-08 15:31:03,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:03,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:31:03,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:03,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:31:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:31:03,685 INFO L87 Difference]: Start difference. First operand has 157 states, 133 states have (on average 1.5714285714285714) internal successors, (209), 135 states have internal predecessors, (209), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-08 15:31:04,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:04,761 INFO L93 Difference]: Finished difference Result 528 states and 830 transitions. [2024-11-08 15:31:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:31:04,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:04,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:04,779 INFO L225 Difference]: With dead ends: 528 [2024-11-08 15:31:04,780 INFO L226 Difference]: Without dead ends: 374 [2024-11-08 15:31:04,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:31:04,789 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 515 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:04,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 556 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:31:04,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-08 15:31:04,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 292. [2024-11-08 15:31:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 251 states have (on average 1.4701195219123506) internal successors, (369), 253 states have internal predecessors, (369), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2024-11-08 15:31:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 426 transitions. [2024-11-08 15:31:04,886 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 426 transitions. Word has length 79 [2024-11-08 15:31:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:04,887 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 426 transitions. [2024-11-08 15:31:04,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-08 15:31:04,888 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 426 transitions. [2024-11-08 15:31:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:04,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:04,892 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] [2024-11-08 15:31:04,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:31:04,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:04,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1731281696, now seen corresponding path program 1 times [2024-11-08 15:31:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:04,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933326608] [2024-11-08 15:31:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:04,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:05,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:05,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:05,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:05,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:05,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:05,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:05,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933326608] [2024-11-08 15:31:05,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933326608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:05,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:05,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:05,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838523512] [2024-11-08 15:31:05,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:05,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:05,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:05,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:05,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:05,127 INFO L87 Difference]: Start difference. First operand 292 states and 426 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:06,555 INFO L93 Difference]: Finished difference Result 891 states and 1319 transitions. [2024-11-08 15:31:06,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:31:06,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:06,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:06,560 INFO L225 Difference]: With dead ends: 891 [2024-11-08 15:31:06,562 INFO L226 Difference]: Without dead ends: 610 [2024-11-08 15:31:06,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:31:06,569 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 548 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:06,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 981 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 15:31:06,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-08 15:31:06,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 425. [2024-11-08 15:31:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 366 states have (on average 1.4617486338797814) internal successors, (535), 369 states have internal predecessors, (535), 38 states have call successors, (38), 18 states have call predecessors, (38), 20 states have return successors, (43), 39 states have call predecessors, (43), 38 states have call successors, (43) [2024-11-08 15:31:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 616 transitions. [2024-11-08 15:31:06,634 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 616 transitions. Word has length 79 [2024-11-08 15:31:06,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:06,635 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 616 transitions. [2024-11-08 15:31:06,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:06,635 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 616 transitions. [2024-11-08 15:31:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:06,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:06,638 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] [2024-11-08 15:31:06,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:31:06,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:06,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:06,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1785674594, now seen corresponding path program 1 times [2024-11-08 15:31:06,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:06,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931543225] [2024-11-08 15:31:06,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:06,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:06,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:06,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:06,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:06,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:06,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:06,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:06,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931543225] [2024-11-08 15:31:06,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931543225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:06,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:06,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:06,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664188747] [2024-11-08 15:31:06,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:06,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:06,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:06,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:06,825 INFO L87 Difference]: Start difference. First operand 425 states and 616 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:08,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:08,136 INFO L93 Difference]: Finished difference Result 1366 states and 2011 transitions. [2024-11-08 15:31:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:31:08,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:08,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:08,142 INFO L225 Difference]: With dead ends: 1366 [2024-11-08 15:31:08,143 INFO L226 Difference]: Without dead ends: 952 [2024-11-08 15:31:08,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:31:08,146 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 543 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:08,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 979 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:31:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-08 15:31:08,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 694. [2024-11-08 15:31:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 599 states have (on average 1.4557595993322203) internal successors, (872), 604 states have internal predecessors, (872), 60 states have call successors, (60), 30 states have call predecessors, (60), 34 states have return successors, (73), 63 states have call predecessors, (73), 60 states have call successors, (73) [2024-11-08 15:31:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1005 transitions. [2024-11-08 15:31:08,192 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1005 transitions. Word has length 79 [2024-11-08 15:31:08,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:08,193 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1005 transitions. [2024-11-08 15:31:08,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:08,193 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1005 transitions. [2024-11-08 15:31:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:08,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:08,196 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] [2024-11-08 15:31:08,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:31:08,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2091896096, now seen corresponding path program 1 times [2024-11-08 15:31:08,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:08,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044707110] [2024-11-08 15:31:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:08,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:08,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:08,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:08,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:08,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:08,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:08,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:08,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044707110] [2024-11-08 15:31:08,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044707110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:08,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:08,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:08,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033953874] [2024-11-08 15:31:08,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:08,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:08,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:08,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:08,341 INFO L87 Difference]: Start difference. First operand 694 states and 1005 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:09,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:09,769 INFO L93 Difference]: Finished difference Result 2455 states and 3594 transitions. [2024-11-08 15:31:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 15:31:09,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:09,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:09,779 INFO L225 Difference]: With dead ends: 2455 [2024-11-08 15:31:09,780 INFO L226 Difference]: Without dead ends: 1772 [2024-11-08 15:31:09,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:31:09,786 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 565 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:09,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 963 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 15:31:09,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2024-11-08 15:31:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1219. [2024-11-08 15:31:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1056 states have (on average 1.456439393939394) internal successors, (1538), 1065 states have internal predecessors, (1538), 100 states have call successors, (100), 54 states have call predecessors, (100), 62 states have return successors, (135), 107 states have call predecessors, (135), 100 states have call successors, (135) [2024-11-08 15:31:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1773 transitions. [2024-11-08 15:31:09,882 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1773 transitions. Word has length 79 [2024-11-08 15:31:09,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:09,882 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1773 transitions. [2024-11-08 15:31:09,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1773 transitions. [2024-11-08 15:31:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:09,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:09,886 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] [2024-11-08 15:31:09,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:31:09,886 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:09,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:09,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1523798946, now seen corresponding path program 1 times [2024-11-08 15:31:09,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:09,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848800011] [2024-11-08 15:31:09,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:09,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:09,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:09,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:10,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:10,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:10,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:10,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:10,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848800011] [2024-11-08 15:31:10,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848800011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:10,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:10,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:10,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123774415] [2024-11-08 15:31:10,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:10,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:10,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:10,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:10,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:10,060 INFO L87 Difference]: Start difference. First operand 1219 states and 1773 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:11,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:11,456 INFO L93 Difference]: Finished difference Result 4314 states and 6316 transitions. [2024-11-08 15:31:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 15:31:11,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:11,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:11,474 INFO L225 Difference]: With dead ends: 4314 [2024-11-08 15:31:11,475 INFO L226 Difference]: Without dead ends: 3106 [2024-11-08 15:31:11,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:31:11,484 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 598 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:11,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 963 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:31:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2024-11-08 15:31:11,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 2268. [2024-11-08 15:31:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1973 states have (on average 1.457678661936138) internal successors, (2876), 1990 states have internal predecessors, (2876), 176 states have call successors, (176), 102 states have call predecessors, (176), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2024-11-08 15:31:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3325 transitions. [2024-11-08 15:31:11,651 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3325 transitions. Word has length 79 [2024-11-08 15:31:11,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:11,652 INFO L471 AbstractCegarLoop]: Abstraction has 2268 states and 3325 transitions. [2024-11-08 15:31:11,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3325 transitions. [2024-11-08 15:31:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:11,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:11,660 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] [2024-11-08 15:31:11,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:31:11,660 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:11,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:11,661 INFO L85 PathProgramCache]: Analyzing trace with hash 437775712, now seen corresponding path program 1 times [2024-11-08 15:31:11,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:11,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244291599] [2024-11-08 15:31:11,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:11,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:11,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:11,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:11,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:11,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:11,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:11,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:11,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244291599] [2024-11-08 15:31:11,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244291599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:11,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:11,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:11,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133395162] [2024-11-08 15:31:11,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:11,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:11,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:11,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:11,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:11,825 INFO L87 Difference]: Start difference. First operand 2268 states and 3325 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:12,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:12,530 INFO L93 Difference]: Finished difference Result 5071 states and 7518 transitions. [2024-11-08 15:31:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:31:12,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:12,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:12,546 INFO L225 Difference]: With dead ends: 5071 [2024-11-08 15:31:12,546 INFO L226 Difference]: Without dead ends: 2814 [2024-11-08 15:31:12,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:31:12,555 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 382 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:12,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 483 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:31:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2024-11-08 15:31:12,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2268. [2024-11-08 15:31:12,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1973 states have (on average 1.4490623416117587) internal successors, (2859), 1990 states have internal predecessors, (2859), 176 states have call successors, (176), 102 states have call predecessors, (176), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2024-11-08 15:31:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3308 transitions. [2024-11-08 15:31:12,733 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3308 transitions. Word has length 79 [2024-11-08 15:31:12,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:12,733 INFO L471 AbstractCegarLoop]: Abstraction has 2268 states and 3308 transitions. [2024-11-08 15:31:12,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:12,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3308 transitions. [2024-11-08 15:31:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:12,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:12,737 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] [2024-11-08 15:31:12,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:31:12,738 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:12,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash 639599646, now seen corresponding path program 1 times [2024-11-08 15:31:12,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:12,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046655907] [2024-11-08 15:31:12,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:12,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:12,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:12,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:12,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:12,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:12,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:12,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:12,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046655907] [2024-11-08 15:31:12,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046655907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:12,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:12,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:12,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000336121] [2024-11-08 15:31:12,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:12,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:12,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:12,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:12,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:12,848 INFO L87 Difference]: Start difference. First operand 2268 states and 3308 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:13,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:13,595 INFO L93 Difference]: Finished difference Result 4925 states and 7244 transitions. [2024-11-08 15:31:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:31:13,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:13,609 INFO L225 Difference]: With dead ends: 4925 [2024-11-08 15:31:13,610 INFO L226 Difference]: Without dead ends: 2669 [2024-11-08 15:31:13,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:31:13,623 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 175 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:13,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 665 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:31:13,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2024-11-08 15:31:13,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2271. [2024-11-08 15:31:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 1976 states have (on average 1.4402834008097165) internal successors, (2846), 1993 states have internal predecessors, (2846), 176 states have call successors, (176), 102 states have call predecessors, (176), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2024-11-08 15:31:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 3295 transitions. [2024-11-08 15:31:13,790 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 3295 transitions. Word has length 79 [2024-11-08 15:31:13,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:13,793 INFO L471 AbstractCegarLoop]: Abstraction has 2271 states and 3295 transitions. [2024-11-08 15:31:13,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:13,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 3295 transitions. [2024-11-08 15:31:13,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:13,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:13,800 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] [2024-11-08 15:31:13,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:31:13,800 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:13,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:13,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1388986464, now seen corresponding path program 1 times [2024-11-08 15:31:13,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:13,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970657248] [2024-11-08 15:31:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:13,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:13,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:13,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:13,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:13,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:13,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:13,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970657248] [2024-11-08 15:31:13,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970657248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:13,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:13,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:13,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769119999] [2024-11-08 15:31:13,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:13,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:13,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:13,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:13,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:13,920 INFO L87 Difference]: Start difference. First operand 2271 states and 3295 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:14,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:14,748 INFO L93 Difference]: Finished difference Result 4982 states and 7286 transitions. [2024-11-08 15:31:14,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:31:14,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:14,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:14,765 INFO L225 Difference]: With dead ends: 4982 [2024-11-08 15:31:14,765 INFO L226 Difference]: Without dead ends: 2723 [2024-11-08 15:31:14,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:31:14,774 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 188 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:14,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 665 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:31:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-08 15:31:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2322. [2024-11-08 15:31:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 2027 states have (on average 1.42920572274297) internal successors, (2897), 2044 states have internal predecessors, (2897), 176 states have call successors, (176), 102 states have call predecessors, (176), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2024-11-08 15:31:14,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3346 transitions. [2024-11-08 15:31:14,920 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3346 transitions. Word has length 79 [2024-11-08 15:31:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:14,920 INFO L471 AbstractCegarLoop]: Abstraction has 2322 states and 3346 transitions. [2024-11-08 15:31:14,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3346 transitions. [2024-11-08 15:31:14,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:14,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:14,924 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] [2024-11-08 15:31:14,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:31:14,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:14,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:14,925 INFO L85 PathProgramCache]: Analyzing trace with hash -495500126, now seen corresponding path program 1 times [2024-11-08 15:31:14,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:14,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643269004] [2024-11-08 15:31:14,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:14,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:14,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:14,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:14,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:15,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:15,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:15,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:15,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643269004] [2024-11-08 15:31:15,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643269004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:15,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:15,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:15,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399542650] [2024-11-08 15:31:15,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:15,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:15,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:15,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:15,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:15,062 INFO L87 Difference]: Start difference. First operand 2322 states and 3346 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:16,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:16,669 INFO L93 Difference]: Finished difference Result 10331 states and 15200 transitions. [2024-11-08 15:31:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 15:31:16,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:16,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:16,713 INFO L225 Difference]: With dead ends: 10331 [2024-11-08 15:31:16,714 INFO L226 Difference]: Without dead ends: 8021 [2024-11-08 15:31:16,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:31:16,729 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1428 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:16,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 799 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:31:16,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2024-11-08 15:31:17,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 6633. [2024-11-08 15:31:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 5775 states have (on average 1.4297835497835498) internal successors, (8257), 5842 states have internal predecessors, (8257), 501 states have call successors, (501), 308 states have call predecessors, (501), 356 states have return successors, (835), 498 states have call predecessors, (835), 501 states have call successors, (835) [2024-11-08 15:31:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 9593 transitions. [2024-11-08 15:31:17,239 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 9593 transitions. Word has length 79 [2024-11-08 15:31:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:17,240 INFO L471 AbstractCegarLoop]: Abstraction has 6633 states and 9593 transitions. [2024-11-08 15:31:17,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 9593 transitions. [2024-11-08 15:31:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:17,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:17,244 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] [2024-11-08 15:31:17,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:31:17,245 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:17,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1403030179, now seen corresponding path program 1 times [2024-11-08 15:31:17,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:17,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325503162] [2024-11-08 15:31:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:17,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:17,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:17,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:17,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:17,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:17,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325503162] [2024-11-08 15:31:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325503162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:17,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:17,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610336363] [2024-11-08 15:31:17,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:17,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:17,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:17,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:17,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:17,402 INFO L87 Difference]: Start difference. First operand 6633 states and 9593 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:18,323 INFO L93 Difference]: Finished difference Result 14606 states and 21427 transitions. [2024-11-08 15:31:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:31:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:18,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:18,384 INFO L225 Difference]: With dead ends: 14606 [2024-11-08 15:31:18,385 INFO L226 Difference]: Without dead ends: 7985 [2024-11-08 15:31:18,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:31:18,406 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 198 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:18,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 665 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:31:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2024-11-08 15:31:18,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 6711. [2024-11-08 15:31:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6711 states, 5853 states have (on average 1.4196138732274048) internal successors, (8309), 5920 states have internal predecessors, (8309), 501 states have call successors, (501), 308 states have call predecessors, (501), 356 states have return successors, (835), 498 states have call predecessors, (835), 501 states have call successors, (835) [2024-11-08 15:31:19,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6711 states to 6711 states and 9645 transitions. [2024-11-08 15:31:19,024 INFO L78 Accepts]: Start accepts. Automaton has 6711 states and 9645 transitions. Word has length 79 [2024-11-08 15:31:19,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:19,026 INFO L471 AbstractCegarLoop]: Abstraction has 6711 states and 9645 transitions. [2024-11-08 15:31:19,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 15:31:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6711 states and 9645 transitions. [2024-11-08 15:31:19,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:31:19,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:19,032 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] [2024-11-08 15:31:19,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:31:19,032 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:19,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:19,033 INFO L85 PathProgramCache]: Analyzing trace with hash -442336987, now seen corresponding path program 1 times [2024-11-08 15:31:19,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:19,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215769935] [2024-11-08 15:31:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:19,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:19,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:19,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:19,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:19,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:19,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215769935] [2024-11-08 15:31:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215769935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:19,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:31:19,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157744049] [2024-11-08 15:31:19,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:19,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:31:19,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:31:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:31:19,145 INFO L87 Difference]: Start difference. First operand 6711 states and 9645 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-08 15:31:20,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:20,755 INFO L93 Difference]: Finished difference Result 22497 states and 32538 transitions. [2024-11-08 15:31:20,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:31:20,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 79 [2024-11-08 15:31:20,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:20,825 INFO L225 Difference]: With dead ends: 22497 [2024-11-08 15:31:20,825 INFO L226 Difference]: Without dead ends: 15798 [2024-11-08 15:31:20,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:31:20,851 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 797 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:20,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 723 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 15:31:20,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15798 states. [2024-11-08 15:31:21,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15798 to 13198. [2024-11-08 15:31:21,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13198 states, 11487 states have (on average 1.4091581788108296) internal successors, (16187), 11620 states have internal predecessors, (16187), 998 states have call successors, (998), 616 states have call predecessors, (998), 712 states have return successors, (1651), 977 states have call predecessors, (1651), 998 states have call successors, (1651) [2024-11-08 15:31:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13198 states to 13198 states and 18836 transitions. [2024-11-08 15:31:21,708 INFO L78 Accepts]: Start accepts. Automaton has 13198 states and 18836 transitions. Word has length 79 [2024-11-08 15:31:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:21,708 INFO L471 AbstractCegarLoop]: Abstraction has 13198 states and 18836 transitions. [2024-11-08 15:31:21,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-08 15:31:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 13198 states and 18836 transitions. [2024-11-08 15:31:21,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:21,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:21,773 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:21,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:31:21,773 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:21,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:21,774 INFO L85 PathProgramCache]: Analyzing trace with hash 678322589, now seen corresponding path program 1 times [2024-11-08 15:31:21,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:21,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871116648] [2024-11-08 15:31:21,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:21,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:21,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:21,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:21,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:21,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:31:21,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:21,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871116648] [2024-11-08 15:31:21,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871116648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:21,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:21,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:21,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148520088] [2024-11-08 15:31:21,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:21,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:21,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:21,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:21,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:21,916 INFO L87 Difference]: Start difference. First operand 13198 states and 18836 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-08 15:31:23,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:23,655 INFO L93 Difference]: Finished difference Result 29192 states and 42117 transitions. [2024-11-08 15:31:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:31:23,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 98 [2024-11-08 15:31:23,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:23,710 INFO L225 Difference]: With dead ends: 29192 [2024-11-08 15:31:23,711 INFO L226 Difference]: Without dead ends: 16006 [2024-11-08 15:31:23,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:31:23,742 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 200 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:23,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 660 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:31:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16006 states. [2024-11-08 15:31:24,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16006 to 13354. [2024-11-08 15:31:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13354 states, 11643 states have (on average 1.399209825646311) internal successors, (16291), 11776 states have internal predecessors, (16291), 998 states have call successors, (998), 616 states have call predecessors, (998), 712 states have return successors, (1651), 977 states have call predecessors, (1651), 998 states have call successors, (1651) [2024-11-08 15:31:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13354 states to 13354 states and 18940 transitions. [2024-11-08 15:31:24,564 INFO L78 Accepts]: Start accepts. Automaton has 13354 states and 18940 transitions. Word has length 98 [2024-11-08 15:31:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:24,565 INFO L471 AbstractCegarLoop]: Abstraction has 13354 states and 18940 transitions. [2024-11-08 15:31:24,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-08 15:31:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 13354 states and 18940 transitions. [2024-11-08 15:31:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:24,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:24,576 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:24,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:31:24,577 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:24,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:24,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2078304677, now seen corresponding path program 1 times [2024-11-08 15:31:24,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:24,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862626069] [2024-11-08 15:31:24,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:24,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:24,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:24,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:24,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:24,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:24,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:24,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:24,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:31:24,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:24,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862626069] [2024-11-08 15:31:24,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862626069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:24,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:24,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:31:24,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547679813] [2024-11-08 15:31:24,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:24,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:31:24,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:24,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:31:24,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:24,792 INFO L87 Difference]: Start difference. First operand 13354 states and 18940 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:27,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:27,377 INFO L93 Difference]: Finished difference Result 44732 states and 63746 transitions. [2024-11-08 15:31:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 15:31:27,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-11-08 15:31:27,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:27,553 INFO L225 Difference]: With dead ends: 44732 [2024-11-08 15:31:27,554 INFO L226 Difference]: Without dead ends: 31391 [2024-11-08 15:31:27,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:31:27,596 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 724 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:27,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 732 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:31:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31391 states. [2024-11-08 15:31:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31391 to 25696. [2024-11-08 15:31:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25696 states, 22327 states have (on average 1.38572132395754) internal successors, (30939), 22676 states have internal predecessors, (30939), 1904 states have call successors, (1904), 1184 states have call predecessors, (1904), 1464 states have return successors, (3349), 1867 states have call predecessors, (3349), 1904 states have call successors, (3349) [2024-11-08 15:31:29,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25696 states to 25696 states and 36192 transitions. [2024-11-08 15:31:29,699 INFO L78 Accepts]: Start accepts. Automaton has 25696 states and 36192 transitions. Word has length 98 [2024-11-08 15:31:29,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:29,700 INFO L471 AbstractCegarLoop]: Abstraction has 25696 states and 36192 transitions. [2024-11-08 15:31:29,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:29,700 INFO L276 IsEmpty]: Start isEmpty. Operand 25696 states and 36192 transitions. [2024-11-08 15:31:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:29,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:29,722 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:29,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:31:29,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:29,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:29,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1863574237, now seen corresponding path program 1 times [2024-11-08 15:31:29,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:29,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762083572] [2024-11-08 15:31:29,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:29,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:29,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:29,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:29,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:29,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:29,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:29,875 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:31:29,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:29,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762083572] [2024-11-08 15:31:29,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762083572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:29,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:29,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:31:29,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888038096] [2024-11-08 15:31:29,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:29,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:31:29,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:29,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:31:29,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:29,878 INFO L87 Difference]: Start difference. First operand 25696 states and 36192 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:31,803 INFO L93 Difference]: Finished difference Result 31404 states and 44140 transitions. [2024-11-08 15:31:31,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 15:31:31,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-11-08 15:31:31,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:31,891 INFO L225 Difference]: With dead ends: 31404 [2024-11-08 15:31:31,891 INFO L226 Difference]: Without dead ends: 17591 [2024-11-08 15:31:31,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:31:31,928 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 739 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:31,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 729 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 15:31:31,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17591 states. [2024-11-08 15:31:32,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17591 to 14268. [2024-11-08 15:31:32,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14268 states, 12385 states have (on average 1.363342753330642) internal successors, (16885), 12562 states have internal predecessors, (16885), 1082 states have call successors, (1082), 664 states have call predecessors, (1082), 800 states have return successors, (1695), 1057 states have call predecessors, (1695), 1082 states have call successors, (1695) [2024-11-08 15:31:33,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14268 states to 14268 states and 19662 transitions. [2024-11-08 15:31:33,034 INFO L78 Accepts]: Start accepts. Automaton has 14268 states and 19662 transitions. Word has length 98 [2024-11-08 15:31:33,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:33,034 INFO L471 AbstractCegarLoop]: Abstraction has 14268 states and 19662 transitions. [2024-11-08 15:31:33,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:33,034 INFO L276 IsEmpty]: Start isEmpty. Operand 14268 states and 19662 transitions. [2024-11-08 15:31:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:33,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:33,044 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:33,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:31:33,045 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:33,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:33,045 INFO L85 PathProgramCache]: Analyzing trace with hash -503120357, now seen corresponding path program 1 times [2024-11-08 15:31:33,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:33,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221293220] [2024-11-08 15:31:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:33,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:33,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:33,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:33,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:33,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:33,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:33,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:31:33,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:33,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221293220] [2024-11-08 15:31:33,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221293220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:33,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:33,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:31:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919330944] [2024-11-08 15:31:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:33,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:31:33,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:33,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:31:33,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:33,187 INFO L87 Difference]: Start difference. First operand 14268 states and 19662 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:34,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:34,715 INFO L93 Difference]: Finished difference Result 18600 states and 25750 transitions. [2024-11-08 15:31:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 15:31:34,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-11-08 15:31:34,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:34,766 INFO L225 Difference]: With dead ends: 18600 [2024-11-08 15:31:34,766 INFO L226 Difference]: Without dead ends: 10203 [2024-11-08 15:31:34,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:31:34,789 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 896 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:34,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 641 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 15:31:34,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2024-11-08 15:31:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 8136. [2024-11-08 15:31:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 7061 states have (on average 1.3495255629514233) internal successors, (9529), 7150 states have internal predecessors, (9529), 630 states have call successors, (630), 380 states have call predecessors, (630), 444 states have return successors, (911), 613 states have call predecessors, (911), 630 states have call successors, (911) [2024-11-08 15:31:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 11070 transitions. [2024-11-08 15:31:35,697 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 11070 transitions. Word has length 98 [2024-11-08 15:31:35,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:35,698 INFO L471 AbstractCegarLoop]: Abstraction has 8136 states and 11070 transitions. [2024-11-08 15:31:35,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:35,698 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 11070 transitions. [2024-11-08 15:31:35,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:35,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:35,704 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:35,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:31:35,705 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:35,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:35,705 INFO L85 PathProgramCache]: Analyzing trace with hash 390365981, now seen corresponding path program 1 times [2024-11-08 15:31:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:35,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935376788] [2024-11-08 15:31:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:35,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:35,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:35,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:35,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:35,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:35,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:35,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:35,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:31:35,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:35,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935376788] [2024-11-08 15:31:35,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935376788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:35,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:35,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:31:35,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158121328] [2024-11-08 15:31:35,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:35,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:31:35,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:31:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:35,925 INFO L87 Difference]: Start difference. First operand 8136 states and 11070 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:37,903 INFO L93 Difference]: Finished difference Result 16790 states and 22814 transitions. [2024-11-08 15:31:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 15:31:37,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-11-08 15:31:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:37,957 INFO L225 Difference]: With dead ends: 16790 [2024-11-08 15:31:37,957 INFO L226 Difference]: Without dead ends: 10561 [2024-11-08 15:31:37,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:31:37,980 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 721 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:37,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 733 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:31:37,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10561 states. [2024-11-08 15:31:38,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10561 to 7446. [2024-11-08 15:31:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 6479 states have (on average 1.3398672634665842) internal successors, (8681), 6552 states have internal predecessors, (8681), 570 states have call successors, (570), 348 states have call predecessors, (570), 396 states have return successors, (799), 549 states have call predecessors, (799), 570 states have call successors, (799) [2024-11-08 15:31:38,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 10050 transitions. [2024-11-08 15:31:38,682 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 10050 transitions. Word has length 98 [2024-11-08 15:31:38,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:38,683 INFO L471 AbstractCegarLoop]: Abstraction has 7446 states and 10050 transitions. [2024-11-08 15:31:38,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:38,683 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 10050 transitions. [2024-11-08 15:31:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:38,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:38,687 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:38,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:31:38,687 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:38,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1659021861, now seen corresponding path program 1 times [2024-11-08 15:31:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:38,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810681592] [2024-11-08 15:31:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:38,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:38,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:38,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:38,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:38,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:38,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:38,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:31:38,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:38,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810681592] [2024-11-08 15:31:38,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810681592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:38,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:38,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:31:38,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658711046] [2024-11-08 15:31:38,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:38,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:31:38,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:38,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:31:38,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:38,858 INFO L87 Difference]: Start difference. First operand 7446 states and 10050 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:40,322 INFO L93 Difference]: Finished difference Result 16364 states and 22194 transitions. [2024-11-08 15:31:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 15:31:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-11-08 15:31:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:40,372 INFO L225 Difference]: With dead ends: 16364 [2024-11-08 15:31:40,372 INFO L226 Difference]: Without dead ends: 10009 [2024-11-08 15:31:40,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:31:40,394 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 779 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:40,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 731 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 15:31:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2024-11-08 15:31:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 7328. [2024-11-08 15:31:41,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7328 states, 6381 states have (on average 1.3341169095753016) internal successors, (8513), 6434 states have internal predecessors, (8513), 570 states have call successors, (570), 348 states have call predecessors, (570), 376 states have return successors, (757), 547 states have call predecessors, (757), 570 states have call successors, (757) [2024-11-08 15:31:41,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 9840 transitions. [2024-11-08 15:31:41,129 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 9840 transitions. Word has length 98 [2024-11-08 15:31:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:41,130 INFO L471 AbstractCegarLoop]: Abstraction has 7328 states and 9840 transitions. [2024-11-08 15:31:41,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 9840 transitions. [2024-11-08 15:31:41,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:41,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:41,132 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:41,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:31:41,133 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:41,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1738552157, now seen corresponding path program 1 times [2024-11-08 15:31:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119039300] [2024-11-08 15:31:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:41,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:41,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:41,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:41,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:41,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:41,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:41,315 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:31:41,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:41,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119039300] [2024-11-08 15:31:41,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119039300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:41,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:41,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:41,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022984824] [2024-11-08 15:31:41,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:41,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:41,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:41,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:41,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:41,317 INFO L87 Difference]: Start difference. First operand 7328 states and 9840 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:42,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:42,336 INFO L93 Difference]: Finished difference Result 19003 states and 25374 transitions. [2024-11-08 15:31:42,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:31:42,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-11-08 15:31:42,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:42,374 INFO L225 Difference]: With dead ends: 19003 [2024-11-08 15:31:42,374 INFO L226 Difference]: Without dead ends: 11690 [2024-11-08 15:31:42,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:31:42,394 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 555 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:42,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 492 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:31:42,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11690 states. [2024-11-08 15:31:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11690 to 8846. [2024-11-08 15:31:42,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8846 states, 7795 states have (on average 1.2953175112251443) internal successors, (10097), 7860 states have internal predecessors, (10097), 594 states have call successors, (594), 404 states have call predecessors, (594), 456 states have return successors, (849), 583 states have call predecessors, (849), 594 states have call successors, (849) [2024-11-08 15:31:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 11540 transitions. [2024-11-08 15:31:42,958 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 11540 transitions. Word has length 98 [2024-11-08 15:31:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:42,959 INFO L471 AbstractCegarLoop]: Abstraction has 8846 states and 11540 transitions. [2024-11-08 15:31:42,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 15:31:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 11540 transitions. [2024-11-08 15:31:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:31:42,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:42,961 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:42,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:31:42,962 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:42,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:42,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1986698651, now seen corresponding path program 1 times [2024-11-08 15:31:42,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:42,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389363042] [2024-11-08 15:31:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:42,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:42,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:43,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:43,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:43,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:43,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:43,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:31:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:31:43,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:43,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389363042] [2024-11-08 15:31:43,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389363042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:31:43,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599529195] [2024-11-08 15:31:43,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:43,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:43,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:43,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:31:43,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:31:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:43,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:31:43,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:31:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:43,187 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:31:43,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599529195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:43,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:31:43,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-08 15:31:43,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332144802] [2024-11-08 15:31:43,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:43,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:31:43,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:43,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:31:43,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:43,191 INFO L87 Difference]: Start difference. First operand 8846 states and 11540 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:31:44,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:44,414 INFO L93 Difference]: Finished difference Result 25389 states and 33337 transitions. [2024-11-08 15:31:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:31:44,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 98 [2024-11-08 15:31:44,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:44,456 INFO L225 Difference]: With dead ends: 25389 [2024-11-08 15:31:44,456 INFO L226 Difference]: Without dead ends: 12352 [2024-11-08 15:31:44,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:44,485 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 177 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:44,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 609 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:31:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12352 states. [2024-11-08 15:31:45,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12352 to 12352. [2024-11-08 15:31:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12352 states, 10885 states have (on average 1.291869545245751) internal successors, (14062), 10973 states have internal predecessors, (14062), 827 states have call successors, (827), 564 states have call predecessors, (827), 639 states have return successors, (1286), 816 states have call predecessors, (1286), 827 states have call successors, (1286) [2024-11-08 15:31:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12352 states to 12352 states and 16175 transitions. [2024-11-08 15:31:45,286 INFO L78 Accepts]: Start accepts. Automaton has 12352 states and 16175 transitions. Word has length 98 [2024-11-08 15:31:45,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:45,287 INFO L471 AbstractCegarLoop]: Abstraction has 12352 states and 16175 transitions. [2024-11-08 15:31:45,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:31:45,287 INFO L276 IsEmpty]: Start isEmpty. Operand 12352 states and 16175 transitions. [2024-11-08 15:31:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 15:31:45,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:45,293 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:45,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:31:45,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:45,495 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:45,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1110947598, now seen corresponding path program 1 times [2024-11-08 15:31:45,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:45,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77741126] [2024-11-08 15:31:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:45,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:31:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:31:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 15:31:45,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77741126] [2024-11-08 15:31:45,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77741126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:31:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092483363] [2024-11-08 15:31:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:45,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:45,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:45,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:31:45,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:31:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:45,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:31:45,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:31:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:45,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:31:45,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092483363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:45,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:31:45,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-08 15:31:45,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057729013] [2024-11-08 15:31:45,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:45,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:31:45,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:45,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:31:45,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:45,887 INFO L87 Difference]: Start difference. First operand 12352 states and 16175 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:31:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:46,842 INFO L93 Difference]: Finished difference Result 34016 states and 45065 transitions. [2024-11-08 15:31:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:31:46,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 143 [2024-11-08 15:31:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:46,911 INFO L225 Difference]: With dead ends: 34016 [2024-11-08 15:31:46,911 INFO L226 Difference]: Without dead ends: 21679 [2024-11-08 15:31:46,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:46,938 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 168 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:46,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 602 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:31:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21679 states. [2024-11-08 15:31:47,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21679 to 19612. [2024-11-08 15:31:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19612 states, 17202 states have (on average 1.2889780258109522) internal successors, (22173), 17333 states have internal predecessors, (22173), 1380 states have call successors, (1380), 924 states have call predecessors, (1380), 1029 states have return successors, (2114), 1358 states have call predecessors, (2114), 1380 states have call successors, (2114) [2024-11-08 15:31:47,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19612 states to 19612 states and 25667 transitions. [2024-11-08 15:31:48,018 INFO L78 Accepts]: Start accepts. Automaton has 19612 states and 25667 transitions. Word has length 143 [2024-11-08 15:31:48,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:48,018 INFO L471 AbstractCegarLoop]: Abstraction has 19612 states and 25667 transitions. [2024-11-08 15:31:48,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:31:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 19612 states and 25667 transitions. [2024-11-08 15:31:48,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 15:31:48,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:48,036 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:48,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 15:31:48,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-08 15:31:48,237 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:48,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1359962250, now seen corresponding path program 1 times [2024-11-08 15:31:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:48,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386741626] [2024-11-08 15:31:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:48,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:31:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:31:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 15:31:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:31:48,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:48,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386741626] [2024-11-08 15:31:48,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386741626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:31:48,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365020188] [2024-11-08 15:31:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:48,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:48,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:48,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:31:48,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:31:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:48,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:31:48,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:31:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:31:48,749 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:31:48,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365020188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:48,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:31:48,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-08 15:31:48,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719314827] [2024-11-08 15:31:48,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:48,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:31:48,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:48,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:31:48,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:48,753 INFO L87 Difference]: Start difference. First operand 19612 states and 25667 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 15:31:50,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:50,159 INFO L93 Difference]: Finished difference Result 38422 states and 50974 transitions. [2024-11-08 15:31:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:31:50,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 176 [2024-11-08 15:31:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:50,222 INFO L225 Difference]: With dead ends: 38422 [2024-11-08 15:31:50,222 INFO L226 Difference]: Without dead ends: 20937 [2024-11-08 15:31:50,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:50,253 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 103 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:50,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 445 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:31:50,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20937 states. [2024-11-08 15:31:51,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20937 to 20833. [2024-11-08 15:31:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20833 states, 18268 states have (on average 1.2966936719947448) internal successors, (23688), 18392 states have internal predecessors, (23688), 1473 states have call successors, (1473), 980 states have call predecessors, (1473), 1091 states have return successors, (2246), 1462 states have call predecessors, (2246), 1473 states have call successors, (2246) [2024-11-08 15:31:51,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20833 states to 20833 states and 27407 transitions. [2024-11-08 15:31:51,326 INFO L78 Accepts]: Start accepts. Automaton has 20833 states and 27407 transitions. Word has length 176 [2024-11-08 15:31:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:51,327 INFO L471 AbstractCegarLoop]: Abstraction has 20833 states and 27407 transitions. [2024-11-08 15:31:51,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 15:31:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 20833 states and 27407 transitions. [2024-11-08 15:31:51,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-08 15:31:51,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:51,346 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:51,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 15:31:51,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:51,553 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:51,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:51,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1365488913, now seen corresponding path program 1 times [2024-11-08 15:31:51,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:51,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943465654] [2024-11-08 15:31:51,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:51,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:31:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:31:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-08 15:31:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,690 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 5 proven. 50 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-08 15:31:51,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:51,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943465654] [2024-11-08 15:31:51,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943465654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:31:51,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468314322] [2024-11-08 15:31:51,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:51,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:51,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:51,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:31:51,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:31:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:51,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:31:51,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:31:51,904 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:31:51,904 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:31:51,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468314322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:51,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:31:51,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-08 15:31:51,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287334386] [2024-11-08 15:31:51,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:51,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:31:51,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:51,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:31:51,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:51,907 INFO L87 Difference]: Start difference. First operand 20833 states and 27407 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 15:31:53,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:53,058 INFO L93 Difference]: Finished difference Result 40270 states and 53748 transitions. [2024-11-08 15:31:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:31:53,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 182 [2024-11-08 15:31:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:53,128 INFO L225 Difference]: With dead ends: 40270 [2024-11-08 15:31:53,129 INFO L226 Difference]: Without dead ends: 20934 [2024-11-08 15:31:53,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:53,159 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 158 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:53,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 272 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:31:53,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20934 states. [2024-11-08 15:31:54,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20934 to 20838. [2024-11-08 15:31:54,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20838 states, 18249 states have (on average 1.277001479533125) internal successors, (23304), 18373 states have internal predecessors, (23304), 1439 states have call successors, (1439), 1020 states have call predecessors, (1439), 1149 states have return successors, (2532), 1446 states have call predecessors, (2532), 1439 states have call successors, (2532) [2024-11-08 15:31:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20838 states to 20838 states and 27275 transitions. [2024-11-08 15:31:54,309 INFO L78 Accepts]: Start accepts. Automaton has 20838 states and 27275 transitions. Word has length 182 [2024-11-08 15:31:54,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:54,309 INFO L471 AbstractCegarLoop]: Abstraction has 20838 states and 27275 transitions. [2024-11-08 15:31:54,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 15:31:54,310 INFO L276 IsEmpty]: Start isEmpty. Operand 20838 states and 27275 transitions. [2024-11-08 15:31:54,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-08 15:31:54,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:54,321 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:54,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:31:54,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:54,521 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:54,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:54,522 INFO L85 PathProgramCache]: Analyzing trace with hash 536646112, now seen corresponding path program 1 times [2024-11-08 15:31:54,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:54,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374764255] [2024-11-08 15:31:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:54,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:31:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:31:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-08 15:31:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 5 proven. 51 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 15:31:54,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:54,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374764255] [2024-11-08 15:31:54,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374764255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:31:54,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400977577] [2024-11-08 15:31:54,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:54,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:54,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:54,645 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:31:54,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:31:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:54,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:31:54,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:31:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:31:54,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:31:54,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400977577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:54,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:31:54,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-11-08 15:31:54,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168969992] [2024-11-08 15:31:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:54,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:31:54,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:54,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:31:54,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:54,875 INFO L87 Difference]: Start difference. First operand 20838 states and 27275 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 15:31:56,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:56,547 INFO L93 Difference]: Finished difference Result 51940 states and 68422 transitions. [2024-11-08 15:31:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:31:56,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 182 [2024-11-08 15:31:56,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:56,634 INFO L225 Difference]: With dead ends: 51940 [2024-11-08 15:31:56,634 INFO L226 Difference]: Without dead ends: 31031 [2024-11-08 15:31:56,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:56,671 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 115 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:56,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 414 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:31:56,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31031 states. [2024-11-08 15:31:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31031 to 30768. [2024-11-08 15:31:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30768 states, 26985 states have (on average 1.2799332962757086) internal successors, (34539), 27162 states have internal predecessors, (34539), 2106 states have call successors, (2106), 1500 states have call predecessors, (2106), 1676 states have return successors, (3527), 2107 states have call predecessors, (3527), 2106 states have call successors, (3527) [2024-11-08 15:31:58,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30768 states to 30768 states and 40172 transitions. [2024-11-08 15:31:58,358 INFO L78 Accepts]: Start accepts. Automaton has 30768 states and 40172 transitions. Word has length 182 [2024-11-08 15:31:58,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:58,359 INFO L471 AbstractCegarLoop]: Abstraction has 30768 states and 40172 transitions. [2024-11-08 15:31:58,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 15:31:58,359 INFO L276 IsEmpty]: Start isEmpty. Operand 30768 states and 40172 transitions. [2024-11-08 15:31:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-08 15:31:58,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:58,372 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:58,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 15:31:58,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-08 15:31:58,573 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:58,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:58,574 INFO L85 PathProgramCache]: Analyzing trace with hash 175708130, now seen corresponding path program 1 times [2024-11-08 15:31:58,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:58,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126201428] [2024-11-08 15:31:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:58,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:31:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:31:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:31:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:31:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:31:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 15:31:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:31:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 5 proven. 51 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-08 15:31:58,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:58,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126201428] [2024-11-08 15:31:58,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126201428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:31:58,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077520261] [2024-11-08 15:31:58,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:58,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:31:58,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:58,693 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:31:58,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:31:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:58,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:31:58,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:31:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 15:31:58,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:31:58,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077520261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:58,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:31:58,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-08 15:31:58,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380904953] [2024-11-08 15:31:58,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:58,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:31:58,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:31:58,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:58,854 INFO L87 Difference]: Start difference. First operand 30768 states and 40172 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 15:32:02,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:02,146 INFO L93 Difference]: Finished difference Result 90710 states and 119393 transitions. [2024-11-08 15:32:02,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:32:02,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 188 [2024-11-08 15:32:02,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:02,327 INFO L225 Difference]: With dead ends: 90710 [2024-11-08 15:32:02,328 INFO L226 Difference]: Without dead ends: 59957 [2024-11-08 15:32:02,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:02,372 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 164 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:02,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 592 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:32:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59957 states. [2024-11-08 15:32:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59957 to 59942. [2024-11-08 15:32:06,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59942 states, 52678 states have (on average 1.270359542883177) internal successors, (66920), 53032 states have internal predecessors, (66920), 4019 states have call successors, (4019), 2904 states have call predecessors, (4019), 3244 states have return successors, (7362), 4009 states have call predecessors, (7362), 4019 states have call successors, (7362) [2024-11-08 15:32:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59942 states to 59942 states and 78301 transitions. [2024-11-08 15:32:06,625 INFO L78 Accepts]: Start accepts. Automaton has 59942 states and 78301 transitions. Word has length 188 [2024-11-08 15:32:06,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:06,626 INFO L471 AbstractCegarLoop]: Abstraction has 59942 states and 78301 transitions. [2024-11-08 15:32:06,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 15:32:06,626 INFO L276 IsEmpty]: Start isEmpty. Operand 59942 states and 78301 transitions. [2024-11-08 15:32:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-08 15:32:06,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:06,664 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:06,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 15:32:06,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:32:06,865 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:06,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:06,865 INFO L85 PathProgramCache]: Analyzing trace with hash -943032227, now seen corresponding path program 1 times [2024-11-08 15:32:06,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:06,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719316428] [2024-11-08 15:32:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:32:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 15:32:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:32:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:32:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:32:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:32:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:06,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-08 15:32:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:07,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:32:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:07,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-08 15:32:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:07,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 15:32:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 5 proven. 75 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 15:32:07,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:07,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719316428] [2024-11-08 15:32:07,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719316428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:32:07,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929703027] [2024-11-08 15:32:07,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:07,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:32:07,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:32:07,023 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:32:07,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 15:32:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:07,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:32:07,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:32:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-08 15:32:07,172 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:32:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929703027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:07,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:32:07,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2024-11-08 15:32:07,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411308836] [2024-11-08 15:32:07,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:07,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:32:07,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:07,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:32:07,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:32:07,174 INFO L87 Difference]: Start difference. First operand 59942 states and 78301 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 15:32:14,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:14,225 INFO L93 Difference]: Finished difference Result 175093 states and 230632 transitions. [2024-11-08 15:32:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:32:14,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 227 [2024-11-08 15:32:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:14,608 INFO L225 Difference]: With dead ends: 175093 [2024-11-08 15:32:14,608 INFO L226 Difference]: Without dead ends: 115174 [2024-11-08 15:32:14,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:32:14,706 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 191 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:14,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 476 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:32:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115174 states.