./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 04:57:05,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 04:57:05,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 04:57:05,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 04:57:05,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 04:57:05,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 04:57:05,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 04:57:05,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 04:57:05,225 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 04:57:05,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 04:57:05,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 04:57:05,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 04:57:05,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 04:57:05,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 04:57:05,229 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 04:57:05,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 04:57:05,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 04:57:05,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 04:57:05,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 04:57:05,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 04:57:05,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 04:57:05,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 04:57:05,232 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 04:57:05,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 04:57:05,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 04:57:05,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 04:57:05,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 04:57:05,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 04:57:05,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 04:57:05,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:57:05,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 04:57:05,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 04:57:05,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 04:57:05,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 04:57:05,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 04:57:05,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 04:57:05,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 04:57:05,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 04:57:05,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 04:57:05,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44 [2024-10-24 04:57:05,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 04:57:05,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 04:57:05,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 04:57:05,526 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 04:57:05,527 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 04:57:05,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-10-24 04:57:06,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 04:57:07,302 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 04:57:07,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-10-24 04:57:07,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88812c0c/3770d37190fa42cb8f078a9fa83d0bd0/FLAGe39015c00 [2024-10-24 04:57:07,340 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88812c0c/3770d37190fa42cb8f078a9fa83d0bd0 [2024-10-24 04:57:07,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 04:57:07,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 04:57:07,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 04:57:07,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 04:57:07,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 04:57:07,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:57:07" (1/1) ... [2024-10-24 04:57:07,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70178e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:07, skipping insertion in model container [2024-10-24 04:57:07,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:57:07" (1/1) ... [2024-10-24 04:57:07,414 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 04:57:07,624 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326] [2024-10-24 04:57:07,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:57:07,956 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 04:57:07,965 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326] [2024-10-24 04:57:08,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:57:08,125 INFO L204 MainTranslator]: Completed translation [2024-10-24 04:57:08,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08 WrapperNode [2024-10-24 04:57:08,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 04:57:08,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 04:57:08,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 04:57:08,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 04:57:08,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,350 INFO L138 Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2366 [2024-10-24 04:57:08,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 04:57:08,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 04:57:08,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 04:57:08,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 04:57:08,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,477 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 04:57:08,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 04:57:08,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 04:57:08,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 04:57:08,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 04:57:08,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (1/1) ... [2024-10-24 04:57:08,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:57:08,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 04:57:08,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 04:57:08,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 04:57:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 04:57:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 04:57:08,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 04:57:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 04:57:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 04:57:08,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 04:57:09,035 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 04:57:09,036 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 04:57:11,644 INFO L? ?]: Removed 1210 outVars from TransFormulas that were not future-live. [2024-10-24 04:57:11,645 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 04:57:11,756 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 04:57:11,759 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 04:57:11,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:57:11 BoogieIcfgContainer [2024-10-24 04:57:11,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 04:57:11,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 04:57:11,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 04:57:11,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 04:57:11,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:57:07" (1/3) ... [2024-10-24 04:57:11,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bb3e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:57:11, skipping insertion in model container [2024-10-24 04:57:11,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:08" (2/3) ... [2024-10-24 04:57:11,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bb3e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:57:11, skipping insertion in model container [2024-10-24 04:57:11,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:57:11" (3/3) ... [2024-10-24 04:57:11,769 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-10-24 04:57:11,784 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 04:57:11,785 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 04:57:11,863 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 04:57:11,870 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;@1f145ffa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 04:57:11,871 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 04:57:11,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 809 states, 804 states have (on average 1.5049751243781095) internal successors, (1210), 805 states have internal predecessors, (1210), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-10-24 04:57:11,914 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:11,916 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:11,918 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:11,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:11,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1689165093, now seen corresponding path program 1 times [2024-10-24 04:57:11,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:11,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729453118] [2024-10-24 04:57:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:11,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:12,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:12,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 04:57:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:12,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:12,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:12,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729453118] [2024-10-24 04:57:12,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729453118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:12,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:12,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 04:57:12,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173805051] [2024-10-24 04:57:12,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:12,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 04:57:12,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:12,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 04:57:12,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 04:57:12,550 INFO L87 Difference]: Start difference. First operand has 809 states, 804 states have (on average 1.5049751243781095) internal successors, (1210), 805 states have internal predecessors, (1210), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 141.5) internal successors, (283), 2 states have internal predecessors, (283), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:12,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:12,629 INFO L93 Difference]: Finished difference Result 1580 states and 2375 transitions. [2024-10-24 04:57:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 04:57:12,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 141.5) internal successors, (283), 2 states have internal predecessors, (283), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 290 [2024-10-24 04:57:12,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:12,649 INFO L225 Difference]: With dead ends: 1580 [2024-10-24 04:57:12,649 INFO L226 Difference]: Without dead ends: 808 [2024-10-24 04:57:12,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 04:57:12,657 INFO L432 NwaCegarLoop]: 1206 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:12,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1206 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:12,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-10-24 04:57:12,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 808. [2024-10-24 04:57:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 804 states have (on average 1.4962686567164178) internal successors, (1203), 804 states have internal predecessors, (1203), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1207 transitions. [2024-10-24 04:57:12,725 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1207 transitions. Word has length 290 [2024-10-24 04:57:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:12,726 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1207 transitions. [2024-10-24 04:57:12,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 141.5) internal successors, (283), 2 states have internal predecessors, (283), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1207 transitions. [2024-10-24 04:57:12,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-10-24 04:57:12,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:12,735 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:12,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 04:57:12,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:12,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:12,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1850215647, now seen corresponding path program 1 times [2024-10-24 04:57:12,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:12,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718794264] [2024-10-24 04:57:12,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:14,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:14,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 04:57:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:14,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:14,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718794264] [2024-10-24 04:57:14,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718794264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:14,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:14,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:57:14,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350532661] [2024-10-24 04:57:14,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:14,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:57:14,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:14,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:57:14,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:14,162 INFO L87 Difference]: Start difference. First operand 808 states and 1207 transitions. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:14,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:14,236 INFO L93 Difference]: Finished difference Result 812 states and 1211 transitions. [2024-10-24 04:57:14,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:57:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 290 [2024-10-24 04:57:14,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:14,245 INFO L225 Difference]: With dead ends: 812 [2024-10-24 04:57:14,245 INFO L226 Difference]: Without dead ends: 810 [2024-10-24 04:57:14,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:14,249 INFO L432 NwaCegarLoop]: 1204 mSDtfsCounter, 0 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:14,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3607 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:14,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-10-24 04:57:14,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2024-10-24 04:57:14,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 806 states have (on average 1.4950372208436724) internal successors, (1205), 806 states have internal predecessors, (1205), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:14,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1209 transitions. [2024-10-24 04:57:14,279 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1209 transitions. Word has length 290 [2024-10-24 04:57:14,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:14,281 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 1209 transitions. [2024-10-24 04:57:14,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:14,281 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1209 transitions. [2024-10-24 04:57:14,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-10-24 04:57:14,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:14,287 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:14,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 04:57:14,288 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:14,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:14,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1520413261, now seen corresponding path program 1 times [2024-10-24 04:57:14,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:14,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997913804] [2024-10-24 04:57:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:14,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:15,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:15,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 04:57:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:15,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:15,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997913804] [2024-10-24 04:57:15,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997913804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:15,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:15,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:57:15,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411421359] [2024-10-24 04:57:15,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:15,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:57:15,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:15,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:57:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:15,137 INFO L87 Difference]: Start difference. First operand 810 states and 1209 transitions. Second operand has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:15,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:15,413 INFO L93 Difference]: Finished difference Result 2326 states and 3477 transitions. [2024-10-24 04:57:15,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:15,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 291 [2024-10-24 04:57:15,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:15,420 INFO L225 Difference]: With dead ends: 2326 [2024-10-24 04:57:15,421 INFO L226 Difference]: Without dead ends: 810 [2024-10-24 04:57:15,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:15,427 INFO L432 NwaCegarLoop]: 1200 mSDtfsCounter, 3110 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3111 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:15,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3111 Valid, 3531 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 04:57:15,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-10-24 04:57:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2024-10-24 04:57:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 806 states have (on average 1.4937965260545907) internal successors, (1204), 806 states have internal predecessors, (1204), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1208 transitions. [2024-10-24 04:57:15,449 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1208 transitions. Word has length 291 [2024-10-24 04:57:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:15,449 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 1208 transitions. [2024-10-24 04:57:15,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1208 transitions. [2024-10-24 04:57:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-24 04:57:15,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:15,454 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:15,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 04:57:15,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:15,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:15,455 INFO L85 PathProgramCache]: Analyzing trace with hash 336189948, now seen corresponding path program 1 times [2024-10-24 04:57:15,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:15,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089729336] [2024-10-24 04:57:15,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:15,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:16,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:16,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:16,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089729336] [2024-10-24 04:57:16,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089729336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:16,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:16,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:57:16,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856325583] [2024-10-24 04:57:16,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:16,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:57:16,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:16,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:57:16,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:16,197 INFO L87 Difference]: Start difference. First operand 810 states and 1208 transitions. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:16,245 INFO L93 Difference]: Finished difference Result 1585 states and 2364 transitions. [2024-10-24 04:57:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:57:16,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 292 [2024-10-24 04:57:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:16,250 INFO L225 Difference]: With dead ends: 1585 [2024-10-24 04:57:16,251 INFO L226 Difference]: Without dead ends: 812 [2024-10-24 04:57:16,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:16,253 INFO L432 NwaCegarLoop]: 1203 mSDtfsCounter, 0 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:16,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3601 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:16,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-10-24 04:57:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-10-24 04:57:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 808 states have (on average 1.4925742574257426) internal successors, (1206), 808 states have internal predecessors, (1206), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:16,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1210 transitions. [2024-10-24 04:57:16,273 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1210 transitions. Word has length 292 [2024-10-24 04:57:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:16,274 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1210 transitions. [2024-10-24 04:57:16,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:16,274 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1210 transitions. [2024-10-24 04:57:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-10-24 04:57:16,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:16,279 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:16,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 04:57:16,279 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:16,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash 733989649, now seen corresponding path program 1 times [2024-10-24 04:57:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:16,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435755643] [2024-10-24 04:57:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:16,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:17,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:17,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:17,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:17,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435755643] [2024-10-24 04:57:17,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435755643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:17,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:17,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:57:17,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818372166] [2024-10-24 04:57:17,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:17,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:57:17,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:17,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:57:17,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:17,122 INFO L87 Difference]: Start difference. First operand 812 states and 1210 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:17,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:17,199 INFO L93 Difference]: Finished difference Result 1587 states and 2365 transitions. [2024-10-24 04:57:17,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:57:17,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 293 [2024-10-24 04:57:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:17,203 INFO L225 Difference]: With dead ends: 1587 [2024-10-24 04:57:17,203 INFO L226 Difference]: Without dead ends: 812 [2024-10-24 04:57:17,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:17,205 INFO L432 NwaCegarLoop]: 1189 mSDtfsCounter, 1162 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:17,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 2380 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-10-24 04:57:17,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-10-24 04:57:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 808 states have (on average 1.4913366336633664) internal successors, (1205), 808 states have internal predecessors, (1205), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1209 transitions. [2024-10-24 04:57:17,227 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1209 transitions. Word has length 293 [2024-10-24 04:57:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:17,227 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1209 transitions. [2024-10-24 04:57:17,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1209 transitions. [2024-10-24 04:57:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-10-24 04:57:17,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:17,231 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:17,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 04:57:17,232 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:17,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:17,232 INFO L85 PathProgramCache]: Analyzing trace with hash 40718587, now seen corresponding path program 1 times [2024-10-24 04:57:17,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:17,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629391758] [2024-10-24 04:57:17,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:17,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:17,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:17,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:17,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:17,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629391758] [2024-10-24 04:57:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629391758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:17,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:17,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:57:17,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434266947] [2024-10-24 04:57:17,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:17,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:57:17,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:17,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:57:17,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:17,921 INFO L87 Difference]: Start difference. First operand 812 states and 1209 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:17,999 INFO L93 Difference]: Finished difference Result 1587 states and 2363 transitions. [2024-10-24 04:57:17,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:57:18,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 294 [2024-10-24 04:57:18,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:18,003 INFO L225 Difference]: With dead ends: 1587 [2024-10-24 04:57:18,003 INFO L226 Difference]: Without dead ends: 812 [2024-10-24 04:57:18,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:18,006 INFO L432 NwaCegarLoop]: 1189 mSDtfsCounter, 1160 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:18,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 2380 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:18,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-10-24 04:57:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-10-24 04:57:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 808 states have (on average 1.49009900990099) internal successors, (1204), 808 states have internal predecessors, (1204), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1208 transitions. [2024-10-24 04:57:18,024 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1208 transitions. Word has length 294 [2024-10-24 04:57:18,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:18,025 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1208 transitions. [2024-10-24 04:57:18,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:18,025 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1208 transitions. [2024-10-24 04:57:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-24 04:57:18,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:18,029 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:18,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 04:57:18,029 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:18,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash -488366226, now seen corresponding path program 1 times [2024-10-24 04:57:18,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:18,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141567863] [2024-10-24 04:57:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:18,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:18,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:18,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:18,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141567863] [2024-10-24 04:57:18,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141567863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:18,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:18,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:57:18,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876140733] [2024-10-24 04:57:18,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:18,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:57:18,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:18,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:57:18,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:18,925 INFO L87 Difference]: Start difference. First operand 812 states and 1208 transitions. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:19,089 INFO L93 Difference]: Finished difference Result 2238 states and 3331 transitions. [2024-10-24 04:57:19,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:57:19,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 295 [2024-10-24 04:57:19,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:19,095 INFO L225 Difference]: With dead ends: 2238 [2024-10-24 04:57:19,095 INFO L226 Difference]: Without dead ends: 1463 [2024-10-24 04:57:19,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:19,098 INFO L432 NwaCegarLoop]: 2106 mSDtfsCounter, 941 mSDsluCounter, 5342 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 7448 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:19,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 7448 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2024-10-24 04:57:19,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 851. [2024-10-24 04:57:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 845 states have (on average 1.485207100591716) internal successors, (1255), 845 states have internal predecessors, (1255), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 04:57:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1263 transitions. [2024-10-24 04:57:19,120 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1263 transitions. Word has length 295 [2024-10-24 04:57:19,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:19,121 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1263 transitions. [2024-10-24 04:57:19,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1263 transitions. [2024-10-24 04:57:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-10-24 04:57:19,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:19,125 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:19,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 04:57:19,125 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:19,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:19,126 INFO L85 PathProgramCache]: Analyzing trace with hash -973606261, now seen corresponding path program 1 times [2024-10-24 04:57:19,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:19,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066473151] [2024-10-24 04:57:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:19,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:19,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 04:57:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:19,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 04:57:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:19,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:19,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066473151] [2024-10-24 04:57:19,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066473151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:19,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:19,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:19,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313493798] [2024-10-24 04:57:19,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:19,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:19,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:19,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:19,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:19,894 INFO L87 Difference]: Start difference. First operand 851 states and 1263 transitions. Second operand has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:20,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:20,039 INFO L93 Difference]: Finished difference Result 2316 states and 3441 transitions. [2024-10-24 04:57:20,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:20,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 296 [2024-10-24 04:57:20,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:20,048 INFO L225 Difference]: With dead ends: 2316 [2024-10-24 04:57:20,048 INFO L226 Difference]: Without dead ends: 1502 [2024-10-24 04:57:20,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:20,051 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 1418 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 4880 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:20,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 4880 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:20,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-10-24 04:57:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1354. [2024-10-24 04:57:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1346 states have (on average 1.487369985141159) internal successors, (2002), 1346 states have internal predecessors, (2002), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 04:57:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 2014 transitions. [2024-10-24 04:57:20,094 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 2014 transitions. Word has length 296 [2024-10-24 04:57:20,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:20,094 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 2014 transitions. [2024-10-24 04:57:20,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 2014 transitions. [2024-10-24 04:57:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-10-24 04:57:20,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:20,101 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:20,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 04:57:20,101 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:20,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:20,102 INFO L85 PathProgramCache]: Analyzing trace with hash -983161737, now seen corresponding path program 1 times [2024-10-24 04:57:20,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:20,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804557929] [2024-10-24 04:57:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:20,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:20,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:20,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:20,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:20,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804557929] [2024-10-24 04:57:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804557929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:20,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:20,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:57:20,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893799663] [2024-10-24 04:57:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:20,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:57:20,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:57:20,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:20,536 INFO L87 Difference]: Start difference. First operand 1354 states and 2014 transitions. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:20,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:20,592 INFO L93 Difference]: Finished difference Result 2671 states and 3973 transitions. [2024-10-24 04:57:20,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:57:20,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 296 [2024-10-24 04:57:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:20,597 INFO L225 Difference]: With dead ends: 2671 [2024-10-24 04:57:20,598 INFO L226 Difference]: Without dead ends: 1354 [2024-10-24 04:57:20,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:20,600 INFO L432 NwaCegarLoop]: 1196 mSDtfsCounter, 1155 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:20,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 2396 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:20,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-10-24 04:57:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354. [2024-10-24 04:57:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1346 states have (on average 1.485884101040119) internal successors, (2000), 1346 states have internal predecessors, (2000), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 04:57:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 2012 transitions. [2024-10-24 04:57:20,633 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 2012 transitions. Word has length 296 [2024-10-24 04:57:20,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:20,634 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 2012 transitions. [2024-10-24 04:57:20,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:20,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 2012 transitions. [2024-10-24 04:57:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-24 04:57:20,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:20,639 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:20,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 04:57:20,639 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:20,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:20,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1774433102, now seen corresponding path program 1 times [2024-10-24 04:57:20,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:20,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779416098] [2024-10-24 04:57:20,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:20,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:21,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 04:57:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:21,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 04:57:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:21,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:21,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779416098] [2024-10-24 04:57:21,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779416098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:21,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:21,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:21,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311841240] [2024-10-24 04:57:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:21,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:21,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:21,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:21,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:21,316 INFO L87 Difference]: Start difference. First operand 1354 states and 2012 transitions. Second operand has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:21,452 INFO L93 Difference]: Finished difference Result 2819 states and 4187 transitions. [2024-10-24 04:57:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:21,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 297 [2024-10-24 04:57:21,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:21,460 INFO L225 Difference]: With dead ends: 2819 [2024-10-24 04:57:21,460 INFO L226 Difference]: Without dead ends: 1502 [2024-10-24 04:57:21,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:21,463 INFO L432 NwaCegarLoop]: 1205 mSDtfsCounter, 920 mSDsluCounter, 4778 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 5983 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:21,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 5983 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-10-24 04:57:21,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1354. [2024-10-24 04:57:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1346 states have (on average 1.4851411589895989) internal successors, (1999), 1346 states have internal predecessors, (1999), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 04:57:21,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 2011 transitions. [2024-10-24 04:57:21,499 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 2011 transitions. Word has length 297 [2024-10-24 04:57:21,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:21,499 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 2011 transitions. [2024-10-24 04:57:21,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 2011 transitions. [2024-10-24 04:57:21,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-24 04:57:21,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:21,504 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:21,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 04:57:21,505 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:21,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:21,506 INFO L85 PathProgramCache]: Analyzing trace with hash -659601327, now seen corresponding path program 1 times [2024-10-24 04:57:21,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:21,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941549564] [2024-10-24 04:57:21,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:21,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:22,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:22,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:22,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:22,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941549564] [2024-10-24 04:57:22,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941549564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:22,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:22,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:22,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646600578] [2024-10-24 04:57:22,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:22,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:22,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:22,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:22,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:22,737 INFO L87 Difference]: Start difference. First operand 1354 states and 2011 transitions. Second operand has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:23,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:23,013 INFO L93 Difference]: Finished difference Result 2671 states and 3967 transitions. [2024-10-24 04:57:23,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:23,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 297 [2024-10-24 04:57:23,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:23,020 INFO L225 Difference]: With dead ends: 2671 [2024-10-24 04:57:23,021 INFO L226 Difference]: Without dead ends: 1354 [2024-10-24 04:57:23,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:23,024 INFO L432 NwaCegarLoop]: 1114 mSDtfsCounter, 1151 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 3539 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:23,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 3539 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 04:57:23,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-10-24 04:57:23,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1315. [2024-10-24 04:57:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1309 states have (on average 1.4866310160427807) internal successors, (1946), 1309 states have internal predecessors, (1946), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 04:57:23,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1954 transitions. [2024-10-24 04:57:23,057 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1954 transitions. Word has length 297 [2024-10-24 04:57:23,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:23,057 INFO L471 AbstractCegarLoop]: Abstraction has 1315 states and 1954 transitions. [2024-10-24 04:57:23,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:23,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1954 transitions. [2024-10-24 04:57:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-24 04:57:23,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:23,062 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:23,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 04:57:23,062 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:23,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1608350443, now seen corresponding path program 1 times [2024-10-24 04:57:23,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:23,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643487481] [2024-10-24 04:57:23,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:23,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:23,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:23,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:23,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:23,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643487481] [2024-10-24 04:57:23,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643487481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:23,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:23,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:23,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214865646] [2024-10-24 04:57:23,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:23,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:23,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:23,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:23,930 INFO L87 Difference]: Start difference. First operand 1315 states and 1954 transitions. Second operand has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:24,124 INFO L93 Difference]: Finished difference Result 3244 states and 4821 transitions. [2024-10-24 04:57:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:24,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 297 [2024-10-24 04:57:24,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:24,132 INFO L225 Difference]: With dead ends: 3244 [2024-10-24 04:57:24,132 INFO L226 Difference]: Without dead ends: 1966 [2024-10-24 04:57:24,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:24,135 INFO L432 NwaCegarLoop]: 1192 mSDtfsCounter, 1246 mSDsluCounter, 4763 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 5955 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:24,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 5955 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2024-10-24 04:57:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1402. [2024-10-24 04:57:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1394 states have (on average 1.482783357245337) internal successors, (2067), 1394 states have internal predecessors, (2067), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 04:57:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2079 transitions. [2024-10-24 04:57:24,169 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2079 transitions. Word has length 297 [2024-10-24 04:57:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:24,169 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 2079 transitions. [2024-10-24 04:57:24,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2079 transitions. [2024-10-24 04:57:24,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-24 04:57:24,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:24,174 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:24,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 04:57:24,174 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:24,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2119882042, now seen corresponding path program 1 times [2024-10-24 04:57:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:24,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297098689] [2024-10-24 04:57:24,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:25,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:25,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:25,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:25,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297098689] [2024-10-24 04:57:25,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297098689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:25,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:25,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:25,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307796008] [2024-10-24 04:57:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:25,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:25,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:25,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:25,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:25,162 INFO L87 Difference]: Start difference. First operand 1402 states and 2079 transitions. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:25,363 INFO L93 Difference]: Finished difference Result 3331 states and 4945 transitions. [2024-10-24 04:57:25,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:25,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 298 [2024-10-24 04:57:25,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:25,371 INFO L225 Difference]: With dead ends: 3331 [2024-10-24 04:57:25,371 INFO L226 Difference]: Without dead ends: 1966 [2024-10-24 04:57:25,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:25,374 INFO L432 NwaCegarLoop]: 1805 mSDtfsCounter, 1239 mSDsluCounter, 6355 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 8160 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:25,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 8160 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:25,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2024-10-24 04:57:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1410. [2024-10-24 04:57:25,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1402 states have (on average 1.4821683309557774) internal successors, (2078), 1402 states have internal predecessors, (2078), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 04:57:25,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2090 transitions. [2024-10-24 04:57:25,413 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2090 transitions. Word has length 298 [2024-10-24 04:57:25,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:25,413 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 2090 transitions. [2024-10-24 04:57:25,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:25,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2090 transitions. [2024-10-24 04:57:25,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-24 04:57:25,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:25,418 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:25,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 04:57:25,418 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:25,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:25,419 INFO L85 PathProgramCache]: Analyzing trace with hash 260175630, now seen corresponding path program 1 times [2024-10-24 04:57:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:25,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648508239] [2024-10-24 04:57:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:26,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:26,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:26,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:26,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648508239] [2024-10-24 04:57:26,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648508239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:26,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:26,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 04:57:26,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765234582] [2024-10-24 04:57:26,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:26,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:57:26,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:26,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:57:26,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:26,638 INFO L87 Difference]: Start difference. First operand 1410 states and 2090 transitions. Second operand has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:27,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:27,028 INFO L93 Difference]: Finished difference Result 2783 states and 4125 transitions. [2024-10-24 04:57:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:27,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 299 [2024-10-24 04:57:27,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:27,035 INFO L225 Difference]: With dead ends: 2783 [2024-10-24 04:57:27,035 INFO L226 Difference]: Without dead ends: 1410 [2024-10-24 04:57:27,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:27,038 INFO L432 NwaCegarLoop]: 1089 mSDtfsCounter, 2060 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:27,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 4243 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 04:57:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-10-24 04:57:27,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2024-10-24 04:57:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1402 states have (on average 1.4807417974322397) internal successors, (2076), 1402 states have internal predecessors, (2076), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 04:57:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2088 transitions. [2024-10-24 04:57:27,072 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2088 transitions. Word has length 299 [2024-10-24 04:57:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:27,072 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 2088 transitions. [2024-10-24 04:57:27,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2088 transitions. [2024-10-24 04:57:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-24 04:57:27,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:27,077 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:27,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 04:57:27,077 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:27,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:27,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2031969149, now seen corresponding path program 1 times [2024-10-24 04:57:27,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:27,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724234982] [2024-10-24 04:57:27,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:27,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:27,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:27,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 04:57:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:27,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:27,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724234982] [2024-10-24 04:57:27,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724234982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:27,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:27,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:27,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711068868] [2024-10-24 04:57:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:27,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:27,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:27,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:27,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:27,823 INFO L87 Difference]: Start difference. First operand 1410 states and 2088 transitions. Second operand has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:28,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:28,018 INFO L93 Difference]: Finished difference Result 3339 states and 4951 transitions. [2024-10-24 04:57:28,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:28,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 299 [2024-10-24 04:57:28,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:28,026 INFO L225 Difference]: With dead ends: 3339 [2024-10-24 04:57:28,027 INFO L226 Difference]: Without dead ends: 1966 [2024-10-24 04:57:28,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:28,031 INFO L432 NwaCegarLoop]: 2052 mSDtfsCounter, 1232 mSDsluCounter, 7027 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 9079 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:28,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 9079 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2024-10-24 04:57:28,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1418. [2024-10-24 04:57:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1410 states have (on average 1.4801418439716312) internal successors, (2087), 1410 states have internal predecessors, (2087), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 04:57:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2099 transitions. [2024-10-24 04:57:28,072 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2099 transitions. Word has length 299 [2024-10-24 04:57:28,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:28,073 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 2099 transitions. [2024-10-24 04:57:28,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2099 transitions. [2024-10-24 04:57:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-24 04:57:28,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:28,078 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:28,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 04:57:28,079 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:28,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:28,080 INFO L85 PathProgramCache]: Analyzing trace with hash -963628285, now seen corresponding path program 1 times [2024-10-24 04:57:28,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:28,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561105057] [2024-10-24 04:57:28,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:28,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:28,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:28,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:28,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561105057] [2024-10-24 04:57:28,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561105057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:28,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:28,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:57:28,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180529222] [2024-10-24 04:57:28,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:28,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:57:28,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:28,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:57:28,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:28,858 INFO L87 Difference]: Start difference. First operand 1418 states and 2099 transitions. Second operand has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:28,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:28,975 INFO L93 Difference]: Finished difference Result 3515 states and 5196 transitions. [2024-10-24 04:57:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:57:28,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 300 [2024-10-24 04:57:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:28,985 INFO L225 Difference]: With dead ends: 3515 [2024-10-24 04:57:28,985 INFO L226 Difference]: Without dead ends: 2134 [2024-10-24 04:57:28,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:28,989 INFO L432 NwaCegarLoop]: 1193 mSDtfsCounter, 317 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:28,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 4744 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:28,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2024-10-24 04:57:29,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2088. [2024-10-24 04:57:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 2074 states have (on average 1.4744455159112826) internal successors, (3058), 2074 states have internal predecessors, (3058), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 04:57:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3082 transitions. [2024-10-24 04:57:29,045 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3082 transitions. Word has length 300 [2024-10-24 04:57:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:29,045 INFO L471 AbstractCegarLoop]: Abstraction has 2088 states and 3082 transitions. [2024-10-24 04:57:29,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:29,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3082 transitions. [2024-10-24 04:57:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-24 04:57:29,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:29,052 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:29,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 04:57:29,052 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:29,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:29,053 INFO L85 PathProgramCache]: Analyzing trace with hash 51866483, now seen corresponding path program 1 times [2024-10-24 04:57:29,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:29,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181307685] [2024-10-24 04:57:29,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:29,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:29,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:29,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:29,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181307685] [2024-10-24 04:57:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181307685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:29,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:29,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:57:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642674230] [2024-10-24 04:57:29,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:29,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:57:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:57:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:29,468 INFO L87 Difference]: Start difference. First operand 2088 states and 3082 transitions. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:29,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:29,518 INFO L93 Difference]: Finished difference Result 3469 states and 5126 transitions. [2024-10-24 04:57:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:57:29,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 301 [2024-10-24 04:57:29,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:29,525 INFO L225 Difference]: With dead ends: 3469 [2024-10-24 04:57:29,526 INFO L226 Difference]: Without dead ends: 2088 [2024-10-24 04:57:29,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:29,529 INFO L432 NwaCegarLoop]: 1194 mSDtfsCounter, 1033 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:29,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 2392 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2024-10-24 04:57:29,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2024-10-24 04:57:29,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 2074 states have (on average 1.4734811957569913) internal successors, (3056), 2074 states have internal predecessors, (3056), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 04:57:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3080 transitions. [2024-10-24 04:57:29,584 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3080 transitions. Word has length 301 [2024-10-24 04:57:29,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:29,584 INFO L471 AbstractCegarLoop]: Abstraction has 2088 states and 3080 transitions. [2024-10-24 04:57:29,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:29,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3080 transitions. [2024-10-24 04:57:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-24 04:57:29,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:29,596 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:29,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 04:57:29,596 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:29,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:29,597 INFO L85 PathProgramCache]: Analyzing trace with hash -592468334, now seen corresponding path program 1 times [2024-10-24 04:57:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:29,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865155371] [2024-10-24 04:57:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:29,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:31,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 04:57:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:31,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 04:57:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:31,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:31,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865155371] [2024-10-24 04:57:31,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865155371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:31,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:31,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 04:57:31,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622627666] [2024-10-24 04:57:31,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:31,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 04:57:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:31,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 04:57:31,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-24 04:57:31,192 INFO L87 Difference]: Start difference. First operand 2088 states and 3080 transitions. Second operand has 10 states, 10 states have (on average 29.4) internal successors, (294), 10 states have internal predecessors, (294), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:31,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:31,870 INFO L93 Difference]: Finished difference Result 4820 states and 7107 transitions. [2024-10-24 04:57:31,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 04:57:31,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 29.4) internal successors, (294), 10 states have internal predecessors, (294), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 301 [2024-10-24 04:57:31,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:31,894 INFO L225 Difference]: With dead ends: 4820 [2024-10-24 04:57:31,894 INFO L226 Difference]: Without dead ends: 3439 [2024-10-24 04:57:31,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-24 04:57:31,902 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 2293 mSDsluCounter, 9487 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 11122 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:31,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 11122 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 04:57:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2024-10-24 04:57:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 2785. [2024-10-24 04:57:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2765 states have (on average 1.4705244122965642) internal successors, (4066), 2765 states have internal predecessors, (4066), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 04:57:31,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4102 transitions. [2024-10-24 04:57:31,973 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4102 transitions. Word has length 301 [2024-10-24 04:57:31,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:31,974 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4102 transitions. [2024-10-24 04:57:31,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 29.4) internal successors, (294), 10 states have internal predecessors, (294), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:31,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4102 transitions. [2024-10-24 04:57:31,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-24 04:57:31,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:31,979 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:31,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 04:57:31,979 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:31,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:31,980 INFO L85 PathProgramCache]: Analyzing trace with hash 590275744, now seen corresponding path program 1 times [2024-10-24 04:57:31,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:31,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663581554] [2024-10-24 04:57:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:31,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:32,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:32,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:32,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:32,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663581554] [2024-10-24 04:57:32,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663581554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:32,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:32,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:32,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416000953] [2024-10-24 04:57:32,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:32,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:32,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:32,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:32,875 INFO L87 Difference]: Start difference. First operand 2785 states and 4102 transitions. Second operand has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:33,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:33,064 INFO L93 Difference]: Finished difference Result 4596 states and 6786 transitions. [2024-10-24 04:57:33,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:33,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 302 [2024-10-24 04:57:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:33,073 INFO L225 Difference]: With dead ends: 4596 [2024-10-24 04:57:33,073 INFO L226 Difference]: Without dead ends: 3215 [2024-10-24 04:57:33,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:33,077 INFO L432 NwaCegarLoop]: 1167 mSDtfsCounter, 627 mSDsluCounter, 4670 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 5837 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:33,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 5837 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:33,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2024-10-24 04:57:33,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 2801. [2024-10-24 04:57:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2781 states have (on average 1.4692556634304208) internal successors, (4086), 2781 states have internal predecessors, (4086), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 04:57:33,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 4122 transitions. [2024-10-24 04:57:33,141 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 4122 transitions. Word has length 302 [2024-10-24 04:57:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:33,142 INFO L471 AbstractCegarLoop]: Abstraction has 2801 states and 4122 transitions. [2024-10-24 04:57:33,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:33,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 4122 transitions. [2024-10-24 04:57:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-24 04:57:33,148 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:33,149 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:33,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 04:57:33,149 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:33,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:33,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1448428072, now seen corresponding path program 1 times [2024-10-24 04:57:33,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:33,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422841012] [2024-10-24 04:57:33,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:33,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:34,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 04:57:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:34,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 04:57:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:34,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:34,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422841012] [2024-10-24 04:57:34,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422841012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:34,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:34,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 04:57:34,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169166974] [2024-10-24 04:57:34,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:34,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:57:34,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:34,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:57:34,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:34,161 INFO L87 Difference]: Start difference. First operand 2801 states and 4122 transitions. Second operand has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:34,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:34,286 INFO L93 Difference]: Finished difference Result 4820 states and 7101 transitions. [2024-10-24 04:57:34,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:34,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 302 [2024-10-24 04:57:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:34,295 INFO L225 Difference]: With dead ends: 4820 [2024-10-24 04:57:34,295 INFO L226 Difference]: Without dead ends: 3439 [2024-10-24 04:57:34,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:34,299 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 304 mSDsluCounter, 7835 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 9502 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:34,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 9502 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:34,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2024-10-24 04:57:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3433. [2024-10-24 04:57:34,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3410 states have (on average 1.467741935483871) internal successors, (5005), 3410 states have internal predecessors, (5005), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 04:57:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5047 transitions. [2024-10-24 04:57:34,415 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5047 transitions. Word has length 302 [2024-10-24 04:57:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:34,415 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 5047 transitions. [2024-10-24 04:57:34,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:34,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5047 transitions. [2024-10-24 04:57:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-24 04:57:34,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:34,422 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:34,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 04:57:34,422 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:34,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1471727078, now seen corresponding path program 1 times [2024-10-24 04:57:34,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:34,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59182922] [2024-10-24 04:57:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:34,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:35,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:35,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:35,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:35,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59182922] [2024-10-24 04:57:35,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59182922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:35,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:35,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 04:57:35,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109082503] [2024-10-24 04:57:35,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:35,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:57:35,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:57:35,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:35,537 INFO L87 Difference]: Start difference. First operand 3433 states and 5047 transitions. Second operand has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:35,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:35,935 INFO L93 Difference]: Finished difference Result 5926 states and 8741 transitions. [2024-10-24 04:57:35,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:35,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 302 [2024-10-24 04:57:35,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:35,943 INFO L225 Difference]: With dead ends: 5926 [2024-10-24 04:57:35,943 INFO L226 Difference]: Without dead ends: 3433 [2024-10-24 04:57:35,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:35,948 INFO L432 NwaCegarLoop]: 1087 mSDtfsCounter, 2050 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:35,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2050 Valid, 4241 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 04:57:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2024-10-24 04:57:36,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3433. [2024-10-24 04:57:36,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3410 states have (on average 1.4653958944281524) internal successors, (4997), 3410 states have internal predecessors, (4997), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 04:57:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5039 transitions. [2024-10-24 04:57:36,014 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5039 transitions. Word has length 302 [2024-10-24 04:57:36,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:36,014 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 5039 transitions. [2024-10-24 04:57:36,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5039 transitions. [2024-10-24 04:57:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-24 04:57:36,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:36,022 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:36,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 04:57:36,022 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:36,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:36,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1787221317, now seen corresponding path program 1 times [2024-10-24 04:57:36,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:36,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125153216] [2024-10-24 04:57:36,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:36,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:36,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:36,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:36,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:36,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125153216] [2024-10-24 04:57:36,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125153216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:36,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:36,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462089214] [2024-10-24 04:57:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:36,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:36,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:36,803 INFO L87 Difference]: Start difference. First operand 3433 states and 5039 transitions. Second operand has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:37,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:37,008 INFO L93 Difference]: Finished difference Result 6408 states and 9449 transitions. [2024-10-24 04:57:37,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:37,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 302 [2024-10-24 04:57:37,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:37,016 INFO L225 Difference]: With dead ends: 6408 [2024-10-24 04:57:37,017 INFO L226 Difference]: Without dead ends: 4519 [2024-10-24 04:57:37,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:37,022 INFO L432 NwaCegarLoop]: 2037 mSDtfsCounter, 1224 mSDsluCounter, 6992 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 9029 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:37,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 9029 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:37,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2024-10-24 04:57:37,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 3465. [2024-10-24 04:57:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3442 states have (on average 1.4645554909936083) internal successors, (5041), 3442 states have internal predecessors, (5041), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 04:57:37,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 5083 transitions. [2024-10-24 04:57:37,090 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 5083 transitions. Word has length 302 [2024-10-24 04:57:37,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:37,091 INFO L471 AbstractCegarLoop]: Abstraction has 3465 states and 5083 transitions. [2024-10-24 04:57:37,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:37,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 5083 transitions. [2024-10-24 04:57:37,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-10-24 04:57:37,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:37,099 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:37,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 04:57:37,099 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:37,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:37,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1702702173, now seen corresponding path program 1 times [2024-10-24 04:57:37,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:37,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288670365] [2024-10-24 04:57:37,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:37,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:39,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:39,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:39,202 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:39,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:39,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288670365] [2024-10-24 04:57:39,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288670365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:39,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:39,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 04:57:39,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554410370] [2024-10-24 04:57:39,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:39,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 04:57:39,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:39,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 04:57:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:39,207 INFO L87 Difference]: Start difference. First operand 3465 states and 5083 transitions. Second operand has 8 states, 8 states have (on average 37.0) internal successors, (296), 8 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:39,556 INFO L93 Difference]: Finished difference Result 4868 states and 7154 transitions. [2024-10-24 04:57:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:39,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 37.0) internal successors, (296), 8 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 303 [2024-10-24 04:57:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:39,565 INFO L225 Difference]: With dead ends: 4868 [2024-10-24 04:57:39,565 INFO L226 Difference]: Without dead ends: 3479 [2024-10-24 04:57:39,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:39,568 INFO L432 NwaCegarLoop]: 1117 mSDtfsCounter, 1842 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:39,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 4449 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 04:57:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2024-10-24 04:57:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2024-10-24 04:57:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3454 states have (on average 1.464099594672843) internal successors, (5057), 3454 states have internal predecessors, (5057), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 04:57:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 5099 transitions. [2024-10-24 04:57:39,635 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 5099 transitions. Word has length 303 [2024-10-24 04:57:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:39,636 INFO L471 AbstractCegarLoop]: Abstraction has 3477 states and 5099 transitions. [2024-10-24 04:57:39,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 37.0) internal successors, (296), 8 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 5099 transitions. [2024-10-24 04:57:39,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-10-24 04:57:39,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:39,644 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:39,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 04:57:39,644 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:39,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:39,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1014181245, now seen corresponding path program 1 times [2024-10-24 04:57:39,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:39,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294420851] [2024-10-24 04:57:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:39,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:40,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:40,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:40,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:40,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294420851] [2024-10-24 04:57:40,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294420851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:40,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:40,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 04:57:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476299277] [2024-10-24 04:57:40,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:40,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:57:40,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:57:40,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:40,816 INFO L87 Difference]: Start difference. First operand 3477 states and 5099 transitions. Second operand has 7 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:41,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:41,217 INFO L93 Difference]: Finished difference Result 5942 states and 8746 transitions. [2024-10-24 04:57:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:41,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 304 [2024-10-24 04:57:41,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:41,224 INFO L225 Difference]: With dead ends: 5942 [2024-10-24 04:57:41,225 INFO L226 Difference]: Without dead ends: 3477 [2024-10-24 04:57:41,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:41,230 INFO L432 NwaCegarLoop]: 1086 mSDtfsCounter, 2045 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 4233 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:41,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 4233 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 04:57:41,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2024-10-24 04:57:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3477. [2024-10-24 04:57:41,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3454 states have (on average 1.4617834394904459) internal successors, (5049), 3454 states have internal predecessors, (5049), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 04:57:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 5091 transitions. [2024-10-24 04:57:41,289 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 5091 transitions. Word has length 304 [2024-10-24 04:57:41,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:41,290 INFO L471 AbstractCegarLoop]: Abstraction has 3477 states and 5091 transitions. [2024-10-24 04:57:41,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 5091 transitions. [2024-10-24 04:57:41,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-10-24 04:57:41,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:41,297 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:41,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 04:57:41,298 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:41,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:41,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1752853812, now seen corresponding path program 1 times [2024-10-24 04:57:41,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:41,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337307971] [2024-10-24 04:57:41,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:42,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:42,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:42,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:42,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337307971] [2024-10-24 04:57:42,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337307971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:42,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:42,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:42,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125730830] [2024-10-24 04:57:42,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:42,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:42,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:42,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:42,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:42,021 INFO L87 Difference]: Start difference. First operand 3477 states and 5091 transitions. Second operand has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:42,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:42,213 INFO L93 Difference]: Finished difference Result 6422 states and 9450 transitions. [2024-10-24 04:57:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:42,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 304 [2024-10-24 04:57:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:42,222 INFO L225 Difference]: With dead ends: 6422 [2024-10-24 04:57:42,223 INFO L226 Difference]: Without dead ends: 4537 [2024-10-24 04:57:42,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:42,230 INFO L432 NwaCegarLoop]: 1736 mSDtfsCounter, 1217 mSDsluCounter, 6179 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 7915 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:42,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 7915 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:42,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4537 states. [2024-10-24 04:57:42,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4537 to 3509. [2024-10-24 04:57:42,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 3486 states have (on average 1.4609868043602983) internal successors, (5093), 3486 states have internal predecessors, (5093), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 04:57:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 5135 transitions. [2024-10-24 04:57:42,331 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 5135 transitions. Word has length 304 [2024-10-24 04:57:42,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:42,332 INFO L471 AbstractCegarLoop]: Abstraction has 3509 states and 5135 transitions. [2024-10-24 04:57:42,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:42,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 5135 transitions. [2024-10-24 04:57:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-10-24 04:57:42,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:42,340 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:42,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 04:57:42,340 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:42,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:42,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1387784008, now seen corresponding path program 1 times [2024-10-24 04:57:42,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:42,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110314726] [2024-10-24 04:57:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:42,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:43,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:43,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:43,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110314726] [2024-10-24 04:57:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110314726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:43,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:43,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 04:57:43,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349830581] [2024-10-24 04:57:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:43,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 04:57:43,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 04:57:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 04:57:43,801 INFO L87 Difference]: Start difference. First operand 3509 states and 5135 transitions. Second operand has 11 states, 11 states have (on average 27.09090909090909) internal successors, (298), 11 states have internal predecessors, (298), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:44,741 INFO L93 Difference]: Finished difference Result 7638 states and 11198 transitions. [2024-10-24 04:57:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 04:57:44,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.09090909090909) internal successors, (298), 11 states have internal predecessors, (298), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 305 [2024-10-24 04:57:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:44,752 INFO L225 Difference]: With dead ends: 7638 [2024-10-24 04:57:44,752 INFO L226 Difference]: Without dead ends: 5413 [2024-10-24 04:57:44,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-10-24 04:57:44,756 INFO L432 NwaCegarLoop]: 1974 mSDtfsCounter, 3388 mSDsluCounter, 12746 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3389 SdHoareTripleChecker+Valid, 14720 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:44,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3389 Valid, 14720 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 04:57:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5413 states. [2024-10-24 04:57:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5413 to 3947. [2024-10-24 04:57:44,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3918 states have (on average 1.4555895865237365) internal successors, (5703), 3918 states have internal predecessors, (5703), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:57:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 5757 transitions. [2024-10-24 04:57:44,821 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 5757 transitions. Word has length 305 [2024-10-24 04:57:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:44,821 INFO L471 AbstractCegarLoop]: Abstraction has 3947 states and 5757 transitions. [2024-10-24 04:57:44,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.09090909090909) internal successors, (298), 11 states have internal predecessors, (298), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:57:44,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 5757 transitions. [2024-10-24 04:57:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-10-24 04:57:44,830 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:44,830 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:44,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 04:57:44,830 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:44,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:44,831 INFO L85 PathProgramCache]: Analyzing trace with hash 696769146, now seen corresponding path program 1 times [2024-10-24 04:57:44,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:44,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187528307] [2024-10-24 04:57:44,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:44,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:45,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 04:57:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:45,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:45,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:45,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187528307] [2024-10-24 04:57:45,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187528307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:45,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:45,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 04:57:45,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439324025] [2024-10-24 04:57:45,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:45,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:57:45,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:45,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:57:45,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:45,813 INFO L87 Difference]: Start difference. First operand 3947 states and 5757 transitions. Second operand has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 7 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:46,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:46,161 INFO L93 Difference]: Finished difference Result 6588 states and 9649 transitions. [2024-10-24 04:57:46,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:46,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 7 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 306 [2024-10-24 04:57:46,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:46,168 INFO L225 Difference]: With dead ends: 6588 [2024-10-24 04:57:46,168 INFO L226 Difference]: Without dead ends: 3947 [2024-10-24 04:57:46,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:46,174 INFO L432 NwaCegarLoop]: 1085 mSDtfsCounter, 1433 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 4240 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:46,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 4240 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 04:57:46,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2024-10-24 04:57:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3947. [2024-10-24 04:57:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3918 states have (on average 1.453547728432874) internal successors, (5695), 3918 states have internal predecessors, (5695), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:57:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 5749 transitions. [2024-10-24 04:57:46,235 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 5749 transitions. Word has length 306 [2024-10-24 04:57:46,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:46,236 INFO L471 AbstractCegarLoop]: Abstraction has 3947 states and 5749 transitions. [2024-10-24 04:57:46,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 7 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:46,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 5749 transitions. [2024-10-24 04:57:46,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-10-24 04:57:46,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:46,244 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:46,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 04:57:46,245 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:46,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:46,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1244493655, now seen corresponding path program 1 times [2024-10-24 04:57:46,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:46,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739801331] [2024-10-24 04:57:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:46,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:46,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 04:57:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:46,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:57:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:46,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:46,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739801331] [2024-10-24 04:57:46,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739801331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:46,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:46,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:46,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856691810] [2024-10-24 04:57:46,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:46,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:46,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:46,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:46,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:46,965 INFO L87 Difference]: Start difference. First operand 3947 states and 5749 transitions. Second operand has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:47,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:47,157 INFO L93 Difference]: Finished difference Result 7060 states and 10341 transitions. [2024-10-24 04:57:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:47,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 306 [2024-10-24 04:57:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:47,167 INFO L225 Difference]: With dead ends: 7060 [2024-10-24 04:57:47,167 INFO L226 Difference]: Without dead ends: 4975 [2024-10-24 04:57:47,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:47,172 INFO L432 NwaCegarLoop]: 1723 mSDtfsCounter, 1209 mSDsluCounter, 6151 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 7874 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:47,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 7874 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2024-10-24 04:57:47,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 3979. [2024-10-24 04:57:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3979 states, 3950 states have (on average 1.4529113924050634) internal successors, (5739), 3950 states have internal predecessors, (5739), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:57:47,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 5793 transitions. [2024-10-24 04:57:47,235 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 5793 transitions. Word has length 306 [2024-10-24 04:57:47,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:47,236 INFO L471 AbstractCegarLoop]: Abstraction has 3979 states and 5793 transitions. [2024-10-24 04:57:47,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 5793 transitions. [2024-10-24 04:57:47,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-24 04:57:47,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:47,243 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:47,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 04:57:47,243 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:47,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:47,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1846542485, now seen corresponding path program 1 times [2024-10-24 04:57:47,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:47,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770735321] [2024-10-24 04:57:47,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:47,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:48,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 04:57:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:48,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:48,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:48,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:48,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770735321] [2024-10-24 04:57:48,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770735321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:48,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:48,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 04:57:48,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222940361] [2024-10-24 04:57:48,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:48,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 04:57:48,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:48,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 04:57:48,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:48,329 INFO L87 Difference]: Start difference. First operand 3979 states and 5793 transitions. Second operand has 8 states, 8 states have (on average 37.5) internal successors, (300), 8 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:48,908 INFO L93 Difference]: Finished difference Result 5632 states and 8216 transitions. [2024-10-24 04:57:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 04:57:48,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 37.5) internal successors, (300), 8 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 307 [2024-10-24 04:57:48,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:48,918 INFO L225 Difference]: With dead ends: 5632 [2024-10-24 04:57:48,919 INFO L226 Difference]: Without dead ends: 3999 [2024-10-24 04:57:48,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:48,924 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 1484 mSDsluCounter, 7170 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 8700 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:48,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 8700 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 04:57:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2024-10-24 04:57:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3993. [2024-10-24 04:57:49,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3993 states, 3964 states have (on average 1.4528254288597375) internal successors, (5759), 3964 states have internal predecessors, (5759), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:57:49,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3993 states to 3993 states and 5813 transitions. [2024-10-24 04:57:49,014 INFO L78 Accepts]: Start accepts. Automaton has 3993 states and 5813 transitions. Word has length 307 [2024-10-24 04:57:49,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:49,015 INFO L471 AbstractCegarLoop]: Abstraction has 3993 states and 5813 transitions. [2024-10-24 04:57:49,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 37.5) internal successors, (300), 8 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:49,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3993 states and 5813 transitions. [2024-10-24 04:57:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-24 04:57:49,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:49,024 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:49,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 04:57:49,025 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:49,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:49,025 INFO L85 PathProgramCache]: Analyzing trace with hash -396104209, now seen corresponding path program 1 times [2024-10-24 04:57:49,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:49,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89737602] [2024-10-24 04:57:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:49,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:49,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:49,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:49,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:49,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:49,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89737602] [2024-10-24 04:57:49,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89737602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:49,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:49,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:57:49,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293004626] [2024-10-24 04:57:49,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:49,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:57:49,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:49,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:57:49,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:49,702 INFO L87 Difference]: Start difference. First operand 3993 states and 5813 transitions. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:49,776 INFO L93 Difference]: Finished difference Result 6890 states and 10049 transitions. [2024-10-24 04:57:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:57:49,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 307 [2024-10-24 04:57:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:49,785 INFO L225 Difference]: With dead ends: 6890 [2024-10-24 04:57:49,785 INFO L226 Difference]: Without dead ends: 4041 [2024-10-24 04:57:49,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:57:49,790 INFO L432 NwaCegarLoop]: 1193 mSDtfsCounter, 2 mSDsluCounter, 3567 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:49,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4760 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4041 states. [2024-10-24 04:57:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4041 to 4029. [2024-10-24 04:57:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 4000 states have (on average 1.44875) internal successors, (5795), 4000 states have internal predecessors, (5795), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:57:49,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 5849 transitions. [2024-10-24 04:57:49,847 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 5849 transitions. Word has length 307 [2024-10-24 04:57:49,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:49,847 INFO L471 AbstractCegarLoop]: Abstraction has 4029 states and 5849 transitions. [2024-10-24 04:57:49,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 5849 transitions. [2024-10-24 04:57:49,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-24 04:57:49,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:49,854 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:49,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 04:57:49,854 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:49,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:49,855 INFO L85 PathProgramCache]: Analyzing trace with hash 311700435, now seen corresponding path program 1 times [2024-10-24 04:57:49,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:49,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978855756] [2024-10-24 04:57:49,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:49,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:50,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:50,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:50,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:50,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978855756] [2024-10-24 04:57:50,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978855756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:50,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:50,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:57:50,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328169079] [2024-10-24 04:57:50,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:50,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:57:50,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:50,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:57:50,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:50,378 INFO L87 Difference]: Start difference. First operand 4029 states and 5849 transitions. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:50,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:50,426 INFO L93 Difference]: Finished difference Result 7049 states and 10241 transitions. [2024-10-24 04:57:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:57:50,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 307 [2024-10-24 04:57:50,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:50,435 INFO L225 Difference]: With dead ends: 7049 [2024-10-24 04:57:50,435 INFO L226 Difference]: Without dead ends: 4083 [2024-10-24 04:57:50,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:57:50,442 INFO L432 NwaCegarLoop]: 1193 mSDtfsCounter, 0 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:50,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3573 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:57:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2024-10-24 04:57:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4083. [2024-10-24 04:57:50,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 4054 states have (on average 1.4427725703009373) internal successors, (5849), 4054 states have internal predecessors, (5849), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:57:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 5903 transitions. [2024-10-24 04:57:50,503 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 5903 transitions. Word has length 307 [2024-10-24 04:57:50,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:50,504 INFO L471 AbstractCegarLoop]: Abstraction has 4083 states and 5903 transitions. [2024-10-24 04:57:50,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:50,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 5903 transitions. [2024-10-24 04:57:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-24 04:57:50,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:50,512 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:50,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 04:57:50,513 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:50,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1610662837, now seen corresponding path program 1 times [2024-10-24 04:57:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:50,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316923929] [2024-10-24 04:57:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:50,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:51,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:51,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 04:57:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:51,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:51,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316923929] [2024-10-24 04:57:51,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316923929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:51,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:51,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:51,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721638076] [2024-10-24 04:57:51,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:51,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:51,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:51,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:51,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:51,529 INFO L87 Difference]: Start difference. First operand 4083 states and 5903 transitions. Second operand has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:51,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:51,849 INFO L93 Difference]: Finished difference Result 6779 states and 9809 transitions. [2024-10-24 04:57:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:51,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 307 [2024-10-24 04:57:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:51,858 INFO L225 Difference]: With dead ends: 6779 [2024-10-24 04:57:51,858 INFO L226 Difference]: Without dead ends: 5037 [2024-10-24 04:57:51,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:51,863 INFO L432 NwaCegarLoop]: 1116 mSDtfsCounter, 1449 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:51,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 4405 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 04:57:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5037 states. [2024-10-24 04:57:51,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5037 to 4991. [2024-10-24 04:57:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4953 states have (on average 1.4393296991722189) internal successors, (7129), 4953 states have internal predecessors, (7129), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:57:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7201 transitions. [2024-10-24 04:57:51,931 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7201 transitions. Word has length 307 [2024-10-24 04:57:51,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:51,932 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7201 transitions. [2024-10-24 04:57:51,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7201 transitions. [2024-10-24 04:57:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-10-24 04:57:51,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:51,938 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:51,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 04:57:51,939 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:51,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash 877932743, now seen corresponding path program 1 times [2024-10-24 04:57:51,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:51,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337967766] [2024-10-24 04:57:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:51,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:52,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:52,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 04:57:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:52,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:52,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:52,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337967766] [2024-10-24 04:57:52,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337967766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:52,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:52,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 04:57:52,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033537826] [2024-10-24 04:57:52,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:52,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:57:52,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:52,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:57:52,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:52,905 INFO L87 Difference]: Start difference. First operand 4991 states and 7201 transitions. Second operand has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:53,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:53,321 INFO L93 Difference]: Finished difference Result 7925 states and 11509 transitions. [2024-10-24 04:57:53,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:53,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 308 [2024-10-24 04:57:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:53,330 INFO L225 Difference]: With dead ends: 7925 [2024-10-24 04:57:53,330 INFO L226 Difference]: Without dead ends: 4991 [2024-10-24 04:57:53,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:53,334 INFO L432 NwaCegarLoop]: 1084 mSDtfsCounter, 1429 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 4232 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:53,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 4232 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 04:57:53,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4991 states. [2024-10-24 04:57:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4991 to 4991. [2024-10-24 04:57:53,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4953 states have (on average 1.4373107207752878) internal successors, (7119), 4953 states have internal predecessors, (7119), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:57:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7191 transitions. [2024-10-24 04:57:53,402 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7191 transitions. Word has length 308 [2024-10-24 04:57:53,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:53,403 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7191 transitions. [2024-10-24 04:57:53,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:53,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7191 transitions. [2024-10-24 04:57:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-10-24 04:57:53,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:53,408 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:53,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 04:57:53,408 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:53,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:53,409 INFO L85 PathProgramCache]: Analyzing trace with hash -50198628, now seen corresponding path program 1 times [2024-10-24 04:57:53,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:53,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222406865] [2024-10-24 04:57:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:53,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:54,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 04:57:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:54,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 04:57:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:54,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:54,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222406865] [2024-10-24 04:57:54,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222406865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:54,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:54,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:54,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91612712] [2024-10-24 04:57:54,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:54,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:54,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:54,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:54,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:54,108 INFO L87 Difference]: Start difference. First operand 4991 states and 7191 transitions. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:54,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:54,300 INFO L93 Difference]: Finished difference Result 8367 states and 12154 transitions. [2024-10-24 04:57:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:57:54,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 308 [2024-10-24 04:57:54,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:54,311 INFO L225 Difference]: With dead ends: 8367 [2024-10-24 04:57:54,311 INFO L226 Difference]: Without dead ends: 6134 [2024-10-24 04:57:54,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 04:57:54,318 INFO L432 NwaCegarLoop]: 1778 mSDtfsCounter, 1202 mSDsluCounter, 6264 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 8042 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:54,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 8042 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:54,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2024-10-24 04:57:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 5031. [2024-10-24 04:57:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5031 states, 4993 states have (on average 1.4368115361506109) internal successors, (7174), 4993 states have internal predecessors, (7174), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:57:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5031 states to 5031 states and 7246 transitions. [2024-10-24 04:57:54,400 INFO L78 Accepts]: Start accepts. Automaton has 5031 states and 7246 transitions. Word has length 308 [2024-10-24 04:57:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:54,401 INFO L471 AbstractCegarLoop]: Abstraction has 5031 states and 7246 transitions. [2024-10-24 04:57:54,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5031 states and 7246 transitions. [2024-10-24 04:57:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-24 04:57:54,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:54,407 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:54,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 04:57:54,407 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:54,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2052597564, now seen corresponding path program 1 times [2024-10-24 04:57:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:54,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329970892] [2024-10-24 04:57:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:55,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:55,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 04:57:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:55,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:55,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329970892] [2024-10-24 04:57:55,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329970892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:55,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:55,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 04:57:55,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904594474] [2024-10-24 04:57:55,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:55,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 04:57:55,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:55,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 04:57:55,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:55,416 INFO L87 Difference]: Start difference. First operand 5031 states and 7246 transitions. Second operand has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:55,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:55,754 INFO L93 Difference]: Finished difference Result 7121 states and 10307 transitions. [2024-10-24 04:57:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 04:57:55,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 309 [2024-10-24 04:57:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:55,761 INFO L225 Difference]: With dead ends: 7121 [2024-10-24 04:57:55,761 INFO L226 Difference]: Without dead ends: 5453 [2024-10-24 04:57:55,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 04:57:55,764 INFO L432 NwaCegarLoop]: 1152 mSDtfsCounter, 2403 mSDsluCounter, 6018 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 7170 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:55,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 7170 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 04:57:55,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2024-10-24 04:57:55,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 5037. [2024-10-24 04:57:55,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5037 states, 4999 states have (on average 1.4366873374674936) internal successors, (7182), 4999 states have internal predecessors, (7182), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:57:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 7254 transitions. [2024-10-24 04:57:55,842 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 7254 transitions. Word has length 309 [2024-10-24 04:57:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:55,843 INFO L471 AbstractCegarLoop]: Abstraction has 5037 states and 7254 transitions. [2024-10-24 04:57:55,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 7254 transitions. [2024-10-24 04:57:55,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-10-24 04:57:55,848 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:55,849 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:55,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 04:57:55,849 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:55,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:55,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1018144227, now seen corresponding path program 1 times [2024-10-24 04:57:55,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:55,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309654772] [2024-10-24 04:57:55,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:55,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:56,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:57:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:56,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 04:57:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:56,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309654772] [2024-10-24 04:57:56,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309654772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:56,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:56,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:57:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599494938] [2024-10-24 04:57:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:56,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:57:56,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:56,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:57:56,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:57:56,547 INFO L87 Difference]: Start difference. First operand 5037 states and 7254 transitions. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:56,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:56,716 INFO L93 Difference]: Finished difference Result 7117 states and 10299 transitions. [2024-10-24 04:57:56,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:57:56,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 310 [2024-10-24 04:57:56,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:56,724 INFO L225 Difference]: With dead ends: 7117 [2024-10-24 04:57:56,724 INFO L226 Difference]: Without dead ends: 5449 [2024-10-24 04:57:56,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:56,728 INFO L432 NwaCegarLoop]: 1163 mSDtfsCounter, 605 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 4942 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:56,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 4942 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:57:56,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2024-10-24 04:57:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5083. [2024-10-24 04:57:56,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5083 states, 5045 states have (on average 1.4366699702675916) internal successors, (7248), 5045 states have internal predecessors, (7248), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:57:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 7320 transitions. [2024-10-24 04:57:56,810 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 7320 transitions. Word has length 310 [2024-10-24 04:57:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:56,811 INFO L471 AbstractCegarLoop]: Abstraction has 5083 states and 7320 transitions. [2024-10-24 04:57:56,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 7320 transitions. [2024-10-24 04:57:56,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-10-24 04:57:56,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:56,816 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:56,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 04:57:56,817 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:56,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1935509025, now seen corresponding path program 1 times [2024-10-24 04:57:56,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:56,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294037028] [2024-10-24 04:57:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:56,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:58,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:58,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 04:57:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:58,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:58,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294037028] [2024-10-24 04:57:58,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294037028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:58,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:58,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 04:57:58,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319405123] [2024-10-24 04:57:58,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:58,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 04:57:58,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:58,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 04:57:58,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:57:58,213 INFO L87 Difference]: Start difference. First operand 5083 states and 7320 transitions. Second operand has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:58,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:57:58,794 INFO L93 Difference]: Finished difference Result 8103 states and 11715 transitions. [2024-10-24 04:57:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 04:57:58,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 310 [2024-10-24 04:57:58,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:57:58,799 INFO L225 Difference]: With dead ends: 8103 [2024-10-24 04:57:58,800 INFO L226 Difference]: Without dead ends: 5137 [2024-10-24 04:57:58,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-10-24 04:57:58,803 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 2364 mSDsluCounter, 5237 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 6310 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 04:57:58,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 6310 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 04:57:58,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2024-10-24 04:57:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 4432. [2024-10-24 04:57:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 4403 states have (on average 1.4397002044060867) internal successors, (6339), 4403 states have internal predecessors, (6339), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:57:58,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 6393 transitions. [2024-10-24 04:57:58,861 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 6393 transitions. Word has length 310 [2024-10-24 04:57:58,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:57:58,862 INFO L471 AbstractCegarLoop]: Abstraction has 4432 states and 6393 transitions. [2024-10-24 04:57:58,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:57:58,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 6393 transitions. [2024-10-24 04:57:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-10-24 04:57:58,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:57:58,868 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:57:58,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 04:57:58,868 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:57:58,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:57:58,868 INFO L85 PathProgramCache]: Analyzing trace with hash 249000637, now seen corresponding path program 1 times [2024-10-24 04:57:58,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:57:58,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077302141] [2024-10-24 04:57:58,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:57:58,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:57:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:59,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:57:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:59,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:57:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:57:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:57:59,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:57:59,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077302141] [2024-10-24 04:57:59,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077302141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:57:59,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:57:59,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 04:57:59,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235334917] [2024-10-24 04:57:59,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:57:59,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:57:59,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:57:59,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:57:59,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:57:59,840 INFO L87 Difference]: Start difference. First operand 4432 states and 6393 transitions. Second operand has 7 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:00,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:00,280 INFO L93 Difference]: Finished difference Result 6361 states and 9221 transitions. [2024-10-24 04:58:00,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 04:58:00,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 311 [2024-10-24 04:58:00,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:00,286 INFO L225 Difference]: With dead ends: 6361 [2024-10-24 04:58:00,287 INFO L226 Difference]: Without dead ends: 4862 [2024-10-24 04:58:00,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 04:58:00,290 INFO L432 NwaCegarLoop]: 1089 mSDtfsCounter, 2044 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 5410 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:00,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 5410 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 04:58:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4862 states. [2024-10-24 04:58:00,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4862 to 4448. [2024-10-24 04:58:00,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4448 states, 4419 states have (on average 1.4381081692690654) internal successors, (6355), 4419 states have internal predecessors, (6355), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:58:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 6409 transitions. [2024-10-24 04:58:00,351 INFO L78 Accepts]: Start accepts. Automaton has 4448 states and 6409 transitions. Word has length 311 [2024-10-24 04:58:00,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:00,352 INFO L471 AbstractCegarLoop]: Abstraction has 4448 states and 6409 transitions. [2024-10-24 04:58:00,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:00,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4448 states and 6409 transitions. [2024-10-24 04:58:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-10-24 04:58:00,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:00,356 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:58:00,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 04:58:00,357 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:00,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:00,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2088815387, now seen corresponding path program 1 times [2024-10-24 04:58:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:00,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818360711] [2024-10-24 04:58:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:00,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:00,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 04:58:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:00,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 04:58:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:58:00,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:00,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818360711] [2024-10-24 04:58:00,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818360711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:00,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:00,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:58:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075036719] [2024-10-24 04:58:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:00,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:58:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:58:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:58:00,929 INFO L87 Difference]: Start difference. First operand 4448 states and 6409 transitions. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:01,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:01,027 INFO L93 Difference]: Finished difference Result 5905 states and 8539 transitions. [2024-10-24 04:58:01,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:58:01,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 312 [2024-10-24 04:58:01,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:01,033 INFO L225 Difference]: With dead ends: 5905 [2024-10-24 04:58:01,033 INFO L226 Difference]: Without dead ends: 4456 [2024-10-24 04:58:01,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:58:01,036 INFO L432 NwaCegarLoop]: 1182 mSDtfsCounter, 1005 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:01,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 4715 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:58:01,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2024-10-24 04:58:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4452. [2024-10-24 04:58:01,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4452 states, 4423 states have (on average 1.4377119602080035) internal successors, (6359), 4423 states have internal predecessors, (6359), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 04:58:01,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6413 transitions. [2024-10-24 04:58:01,090 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 6413 transitions. Word has length 312 [2024-10-24 04:58:01,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:01,091 INFO L471 AbstractCegarLoop]: Abstraction has 4452 states and 6413 transitions. [2024-10-24 04:58:01,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:01,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 6413 transitions. [2024-10-24 04:58:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-10-24 04:58:01,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:01,096 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:58:01,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 04:58:01,096 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:01,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:01,096 INFO L85 PathProgramCache]: Analyzing trace with hash -96647525, now seen corresponding path program 1 times [2024-10-24 04:58:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:01,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969715116] [2024-10-24 04:58:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:01,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:02,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:58:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:02,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:58:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:58:02,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:02,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969715116] [2024-10-24 04:58:02,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969715116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:02,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:02,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 04:58:02,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575579266] [2024-10-24 04:58:02,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:02,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 04:58:02,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:02,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 04:58:02,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 04:58:02,172 INFO L87 Difference]: Start difference. First operand 4452 states and 6413 transitions. Second operand has 11 states, 11 states have (on average 27.727272727272727) internal successors, (305), 11 states have internal predecessors, (305), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:58:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:02,852 INFO L93 Difference]: Finished difference Result 9802 states and 14175 transitions. [2024-10-24 04:58:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 04:58:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.727272727272727) internal successors, (305), 11 states have internal predecessors, (305), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 312 [2024-10-24 04:58:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:02,862 INFO L225 Difference]: With dead ends: 9802 [2024-10-24 04:58:02,862 INFO L226 Difference]: Without dead ends: 7173 [2024-10-24 04:58:02,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-24 04:58:02,866 INFO L432 NwaCegarLoop]: 1908 mSDtfsCounter, 3498 mSDsluCounter, 10809 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 12717 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:02,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3499 Valid, 12717 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 04:58:02,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7173 states. [2024-10-24 04:58:02,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7173 to 5322. [2024-10-24 04:58:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5284 states have (on average 1.4271385314155942) internal successors, (7541), 5284 states have internal predecessors, (7541), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:58:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 7613 transitions. [2024-10-24 04:58:02,945 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 7613 transitions. Word has length 312 [2024-10-24 04:58:02,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:02,945 INFO L471 AbstractCegarLoop]: Abstraction has 5322 states and 7613 transitions. [2024-10-24 04:58:02,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.727272727272727) internal successors, (305), 11 states have internal predecessors, (305), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 04:58:02,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 7613 transitions. [2024-10-24 04:58:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-24 04:58:02,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:02,951 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:58:02,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 04:58:02,952 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:02,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:02,952 INFO L85 PathProgramCache]: Analyzing trace with hash 279613153, now seen corresponding path program 1 times [2024-10-24 04:58:02,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:02,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902278036] [2024-10-24 04:58:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:02,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:03,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:58:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:03,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:58:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:58:03,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:03,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902278036] [2024-10-24 04:58:03,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902278036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:03,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:03,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:58:03,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942732482] [2024-10-24 04:58:03,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:03,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:58:03,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:03,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:58:03,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:58:03,390 INFO L87 Difference]: Start difference. First operand 5322 states and 7613 transitions. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:03,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:03,466 INFO L93 Difference]: Finished difference Result 8617 states and 12394 transitions. [2024-10-24 04:58:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:58:03,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 313 [2024-10-24 04:58:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:03,474 INFO L225 Difference]: With dead ends: 8617 [2024-10-24 04:58:03,474 INFO L226 Difference]: Without dead ends: 5382 [2024-10-24 04:58:03,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:58:03,479 INFO L432 NwaCegarLoop]: 1192 mSDtfsCounter, 2 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4756 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:03,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4756 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:58:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5382 states. [2024-10-24 04:58:03,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5382 to 5367. [2024-10-24 04:58:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5329 states have (on average 1.4235316194407956) internal successors, (7586), 5329 states have internal predecessors, (7586), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:58:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 7658 transitions. [2024-10-24 04:58:03,560 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 7658 transitions. Word has length 313 [2024-10-24 04:58:03,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:03,560 INFO L471 AbstractCegarLoop]: Abstraction has 5367 states and 7658 transitions. [2024-10-24 04:58:03,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:03,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 7658 transitions. [2024-10-24 04:58:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-24 04:58:03,566 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:03,566 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:58:03,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-24 04:58:03,567 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:03,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1144518715, now seen corresponding path program 1 times [2024-10-24 04:58:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:03,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536312238] [2024-10-24 04:58:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:03,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 04:58:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:03,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 04:58:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:58:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 04:58:03,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:58:03,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536312238] [2024-10-24 04:58:03,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536312238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:58:03,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:58:03,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:58:03,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256356742] [2024-10-24 04:58:03,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:58:03,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:58:03,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:58:03,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:58:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:58:03,986 INFO L87 Difference]: Start difference. First operand 5367 states and 7658 transitions. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:58:04,049 INFO L93 Difference]: Finished difference Result 8827 states and 12649 transitions. [2024-10-24 04:58:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:58:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 313 [2024-10-24 04:58:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:58:04,055 INFO L225 Difference]: With dead ends: 8827 [2024-10-24 04:58:04,055 INFO L226 Difference]: Without dead ends: 5439 [2024-10-24 04:58:04,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:58:04,060 INFO L432 NwaCegarLoop]: 1192 mSDtfsCounter, 0 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:58:04,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3570 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:58:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2024-10-24 04:58:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5439. [2024-10-24 04:58:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5401 states have (on average 1.4178855767450471) internal successors, (7658), 5401 states have internal predecessors, (7658), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 04:58:04,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 7730 transitions. [2024-10-24 04:58:04,127 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 7730 transitions. Word has length 313 [2024-10-24 04:58:04,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:58:04,127 INFO L471 AbstractCegarLoop]: Abstraction has 5439 states and 7730 transitions. [2024-10-24 04:58:04,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 04:58:04,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 7730 transitions. [2024-10-24 04:58:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-24 04:58:04,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:58:04,133 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:58:04,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-24 04:58:04,133 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:58:04,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:58:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash 593163573, now seen corresponding path program 1 times [2024-10-24 04:58:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:58:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897202470] [2024-10-24 04:58:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:58:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:58:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat