./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 a046e57d 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-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 23:38:36,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 23:38:36,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 23:38:36,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 23:38:36,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 23:38:36,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 23:38:36,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 23:38:36,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 23:38:36,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 23:38:36,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 23:38:36,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 23:38:36,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 23:38:36,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 23:38:36,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 23:38:36,737 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 23:38:36,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 23:38:36,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 23:38:36,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 23:38:36,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 23:38:36,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 23:38:36,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 23:38:36,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 23:38:36,743 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 23:38:36,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 23:38:36,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 23:38:36,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 23:38:36,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 23:38:36,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 23:38:36,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 23:38:36,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:38:36,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 23:38:36,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 23:38:36,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 23:38:36,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 23:38:36,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 23:38:36,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 23:38:36,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 23:38:36,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 23:38:36,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 23:38:36,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44 [2024-10-12 23:38:36,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 23:38:37,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 23:38:37,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 23:38:37,021 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 23:38:37,022 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 23:38:37,023 INFO L431 ainManager$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 [2024-10-12 23:38:38,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 23:38:38,894 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 23:38:38,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-10-12 23:38:38,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4ff7719/4ae3a15960244bf28b87a334eee9740c/FLAG52d4c41d9 [2024-10-12 23:38:39,157 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4ff7719/4ae3a15960244bf28b87a334eee9740c [2024-10-12 23:38:39,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 23:38:39,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 23:38:39,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 23:38:39,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 23:38:39,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 23:38:39,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:39,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b0c319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39, skipping insertion in model container [2024-10-12 23:38:39,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:39,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 23:38:39,430 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] [2024-10-12 23:38:39,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:38:39,831 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 23:38:39,842 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] [2024-10-12 23:38:39,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:38:39,966 INFO L204 MainTranslator]: Completed translation [2024-10-12 23:38:39,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39 WrapperNode [2024-10-12 23:38:39,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 23:38:39,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 23:38:39,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 23:38:39,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 23:38:39,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,189 INFO L138 Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2366 [2024-10-12 23:38:40,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 23:38:40,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 23:38:40,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 23:38:40,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 23:38:40,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,231 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,362 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]. [2024-10-12 23:38:40,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 23:38:40,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 23:38:40,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 23:38:40,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 23:38:40,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (1/1) ... [2024-10-12 23:38:40,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:38:40,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 23:38:40,522 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) [2024-10-12 23:38:40,528 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 [2024-10-12 23:38:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 23:38:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 23:38:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 23:38:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 23:38:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 23:38:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 23:38:40,842 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 23:38:40,844 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 23:38:43,764 INFO L? ?]: Removed 1210 outVars from TransFormulas that were not future-live. [2024-10-12 23:38:43,765 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 23:38:43,876 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 23:38:43,876 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 23:38:43,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:38:43 BoogieIcfgContainer [2024-10-12 23:38:43,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 23:38:43,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 23:38:43,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 23:38:43,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 23:38:43,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:38:39" (1/3) ... [2024-10-12 23:38:43,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1463e7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:38:43, skipping insertion in model container [2024-10-12 23:38:43,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:38:39" (2/3) ... [2024-10-12 23:38:43,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1463e7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:38:43, skipping insertion in model container [2024-10-12 23:38:43,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:38:43" (3/3) ... [2024-10-12 23:38:43,886 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-10-12 23:38:43,904 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 23:38:43,905 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 23:38:44,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 23:38:44,012 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;@4e76d55b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 23:38:44,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 23:38:44,021 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) [2024-10-12 23:38:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-10-12 23:38:44,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:44,058 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] [2024-10-12 23:38:44,058 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:44,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:44,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1689165093, now seen corresponding path program 1 times [2024-10-12 23:38:44,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:44,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369478504] [2024-10-12 23:38:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:44,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:44,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:44,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 23:38:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:44,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:44,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369478504] [2024-10-12 23:38:44,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369478504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:44,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:44,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 23:38:44,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811091200] [2024-10-12 23:38:44,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:44,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 23:38:44,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:44,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 23:38:44,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 23:38:44,738 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) [2024-10-12 23:38:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:44,828 INFO L93 Difference]: Finished difference Result 1580 states and 2375 transitions. [2024-10-12 23:38:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 23:38:44,832 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 [2024-10-12 23:38:44,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:44,851 INFO L225 Difference]: With dead ends: 1580 [2024-10-12 23:38:44,854 INFO L226 Difference]: Without dead ends: 808 [2024-10-12 23:38:44,862 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 [2024-10-12 23:38:44,865 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 [2024-10-12 23:38:44,867 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] [2024-10-12 23:38:44,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-10-12 23:38:44,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 808. [2024-10-12 23:38:44,954 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) [2024-10-12 23:38:44,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1207 transitions. [2024-10-12 23:38:44,960 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1207 transitions. Word has length 290 [2024-10-12 23:38:44,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:44,962 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1207 transitions. [2024-10-12 23:38:44,962 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) [2024-10-12 23:38:44,962 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1207 transitions. [2024-10-12 23:38:44,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-10-12 23:38:44,969 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:44,969 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] [2024-10-12 23:38:44,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 23:38:44,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:44,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:44,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1850215647, now seen corresponding path program 1 times [2024-10-12 23:38:44,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:44,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336151774] [2024-10-12 23:38:44,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:44,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:46,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:46,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 23:38:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:46,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:46,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336151774] [2024-10-12 23:38:46,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336151774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:46,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:46,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:38:46,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97076362] [2024-10-12 23:38:46,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:46,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:38:46,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:46,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:38:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:38:46,433 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) [2024-10-12 23:38:46,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:46,478 INFO L93 Difference]: Finished difference Result 812 states and 1211 transitions. [2024-10-12 23:38:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:38:46,479 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 [2024-10-12 23:38:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:46,485 INFO L225 Difference]: With dead ends: 812 [2024-10-12 23:38:46,485 INFO L226 Difference]: Without dead ends: 810 [2024-10-12 23:38:46,486 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 [2024-10-12 23:38:46,487 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 [2024-10-12 23:38:46,488 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] [2024-10-12 23:38:46,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-10-12 23:38:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2024-10-12 23:38:46,509 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) [2024-10-12 23:38:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1209 transitions. [2024-10-12 23:38:46,511 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1209 transitions. Word has length 290 [2024-10-12 23:38:46,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:46,515 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 1209 transitions. [2024-10-12 23:38:46,515 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) [2024-10-12 23:38:46,515 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1209 transitions. [2024-10-12 23:38:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-10-12 23:38:46,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:46,521 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] [2024-10-12 23:38:46,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 23:38:46,521 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:46,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:46,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1520413261, now seen corresponding path program 1 times [2024-10-12 23:38:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:46,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391117368] [2024-10-12 23:38:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:47,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:47,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 23:38:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:47,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:47,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391117368] [2024-10-12 23:38:47,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391117368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:47,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:47,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:38:47,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108418854] [2024-10-12 23:38:47,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:47,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:38:47,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:47,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:38:47,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:38:47,355 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) [2024-10-12 23:38:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:47,635 INFO L93 Difference]: Finished difference Result 2326 states and 3477 transitions. [2024-10-12 23:38:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:38:47,636 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 [2024-10-12 23:38:47,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:47,641 INFO L225 Difference]: With dead ends: 2326 [2024-10-12 23:38:47,641 INFO L226 Difference]: Without dead ends: 810 [2024-10-12 23:38:47,647 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 [2024-10-12 23:38:47,649 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 [2024-10-12 23:38:47,652 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] [2024-10-12 23:38:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-10-12 23:38:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2024-10-12 23:38:47,670 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) [2024-10-12 23:38:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1208 transitions. [2024-10-12 23:38:47,673 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1208 transitions. Word has length 291 [2024-10-12 23:38:47,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:47,673 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 1208 transitions. [2024-10-12 23:38:47,674 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) [2024-10-12 23:38:47,674 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1208 transitions. [2024-10-12 23:38:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-12 23:38:47,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:47,679 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] [2024-10-12 23:38:47,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 23:38:47,679 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:47,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash 336189948, now seen corresponding path program 1 times [2024-10-12 23:38:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:47,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533767897] [2024-10-12 23:38:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:48,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:48,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:38:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:48,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:48,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533767897] [2024-10-12 23:38:48,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533767897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:48,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:48,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:38:48,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621875008] [2024-10-12 23:38:48,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:48,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:38:48,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:48,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:38:48,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:38:48,491 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) [2024-10-12 23:38:48,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:48,543 INFO L93 Difference]: Finished difference Result 1585 states and 2364 transitions. [2024-10-12 23:38:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:38:48,544 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 [2024-10-12 23:38:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:48,547 INFO L225 Difference]: With dead ends: 1585 [2024-10-12 23:38:48,548 INFO L226 Difference]: Without dead ends: 812 [2024-10-12 23:38:48,551 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 [2024-10-12 23:38:48,551 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 [2024-10-12 23:38:48,553 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] [2024-10-12 23:38:48,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-10-12 23:38:48,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-10-12 23:38:48,566 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) [2024-10-12 23:38:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1210 transitions. [2024-10-12 23:38:48,568 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1210 transitions. Word has length 292 [2024-10-12 23:38:48,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:48,569 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1210 transitions. [2024-10-12 23:38:48,569 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) [2024-10-12 23:38:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1210 transitions. [2024-10-12 23:38:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-10-12 23:38:48,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:48,573 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] [2024-10-12 23:38:48,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 23:38:48,573 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:48,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:48,575 INFO L85 PathProgramCache]: Analyzing trace with hash 733989649, now seen corresponding path program 1 times [2024-10-12 23:38:48,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:48,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918203411] [2024-10-12 23:38:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:48,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:49,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:49,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:38:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:49,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:49,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918203411] [2024-10-12 23:38:49,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918203411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:49,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:49,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:38:49,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122524509] [2024-10-12 23:38:49,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:49,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:38:49,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:49,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:38:49,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:38:49,319 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) [2024-10-12 23:38:49,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:49,399 INFO L93 Difference]: Finished difference Result 1587 states and 2365 transitions. [2024-10-12 23:38:49,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:38:49,400 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 [2024-10-12 23:38:49,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:49,403 INFO L225 Difference]: With dead ends: 1587 [2024-10-12 23:38:49,404 INFO L226 Difference]: Without dead ends: 812 [2024-10-12 23:38:49,405 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 [2024-10-12 23:38:49,408 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 [2024-10-12 23:38:49,408 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] [2024-10-12 23:38:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-10-12 23:38:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-10-12 23:38:49,425 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) [2024-10-12 23:38:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1209 transitions. [2024-10-12 23:38:49,427 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1209 transitions. Word has length 293 [2024-10-12 23:38:49,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:49,428 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1209 transitions. [2024-10-12 23:38:49,428 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) [2024-10-12 23:38:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1209 transitions. [2024-10-12 23:38:49,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-10-12 23:38:49,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:49,432 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] [2024-10-12 23:38:49,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 23:38:49,432 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:49,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:49,433 INFO L85 PathProgramCache]: Analyzing trace with hash 40718587, now seen corresponding path program 1 times [2024-10-12 23:38:49,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:49,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235213238] [2024-10-12 23:38:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:49,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:50,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:50,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:38:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:50,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:50,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235213238] [2024-10-12 23:38:50,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235213238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:50,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:50,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:38:50,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904877608] [2024-10-12 23:38:50,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:50,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:38:50,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:50,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:38:50,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:38:50,169 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) [2024-10-12 23:38:50,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:50,250 INFO L93 Difference]: Finished difference Result 1587 states and 2363 transitions. [2024-10-12 23:38:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:38:50,251 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 [2024-10-12 23:38:50,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:50,254 INFO L225 Difference]: With dead ends: 1587 [2024-10-12 23:38:50,254 INFO L226 Difference]: Without dead ends: 812 [2024-10-12 23:38:50,256 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 [2024-10-12 23:38:50,256 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 [2024-10-12 23:38:50,257 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] [2024-10-12 23:38:50,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-10-12 23:38:50,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-10-12 23:38:50,269 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) [2024-10-12 23:38:50,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1208 transitions. [2024-10-12 23:38:50,272 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1208 transitions. Word has length 294 [2024-10-12 23:38:50,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:50,272 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1208 transitions. [2024-10-12 23:38:50,272 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) [2024-10-12 23:38:50,273 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1208 transitions. [2024-10-12 23:38:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-12 23:38:50,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:50,276 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] [2024-10-12 23:38:50,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 23:38:50,277 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:50,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:50,277 INFO L85 PathProgramCache]: Analyzing trace with hash -488366226, now seen corresponding path program 1 times [2024-10-12 23:38:50,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:50,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760688495] [2024-10-12 23:38:50,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:50,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:51,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:51,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:38:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:51,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:51,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760688495] [2024-10-12 23:38:51,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760688495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:51,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:51,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:38:51,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019832338] [2024-10-12 23:38:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:51,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:38:51,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:38:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:38:51,309 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) [2024-10-12 23:38:51,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:51,516 INFO L93 Difference]: Finished difference Result 2238 states and 3331 transitions. [2024-10-12 23:38:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:38:51,517 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 [2024-10-12 23:38:51,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:51,523 INFO L225 Difference]: With dead ends: 2238 [2024-10-12 23:38:51,523 INFO L226 Difference]: Without dead ends: 1463 [2024-10-12 23:38:51,525 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 [2024-10-12 23:38:51,525 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 [2024-10-12 23:38:51,526 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] [2024-10-12 23:38:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2024-10-12 23:38:51,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 851. [2024-10-12 23:38:51,547 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) [2024-10-12 23:38:51,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1263 transitions. [2024-10-12 23:38:51,550 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1263 transitions. Word has length 295 [2024-10-12 23:38:51,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:51,550 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1263 transitions. [2024-10-12 23:38:51,551 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) [2024-10-12 23:38:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1263 transitions. [2024-10-12 23:38:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-10-12 23:38:51,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:51,556 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] [2024-10-12 23:38:51,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 23:38:51,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:51,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:51,557 INFO L85 PathProgramCache]: Analyzing trace with hash -973606261, now seen corresponding path program 1 times [2024-10-12 23:38:51,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:51,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656893583] [2024-10-12 23:38:51,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:51,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:52,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-12 23:38:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:52,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-12 23:38:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:52,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:52,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656893583] [2024-10-12 23:38:52,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656893583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:52,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:52,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:38:52,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343324270] [2024-10-12 23:38:52,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:52,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:38:52,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:52,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:38:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:38:52,313 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) [2024-10-12 23:38:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:52,450 INFO L93 Difference]: Finished difference Result 2316 states and 3441 transitions. [2024-10-12 23:38:52,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:38:52,451 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 [2024-10-12 23:38:52,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:52,457 INFO L225 Difference]: With dead ends: 2316 [2024-10-12 23:38:52,457 INFO L226 Difference]: Without dead ends: 1502 [2024-10-12 23:38:52,460 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 [2024-10-12 23:38:52,462 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 [2024-10-12 23:38:52,462 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] [2024-10-12 23:38:52,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-10-12 23:38:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1354. [2024-10-12 23:38:52,492 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) [2024-10-12 23:38:52,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 2014 transitions. [2024-10-12 23:38:52,498 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 2014 transitions. Word has length 296 [2024-10-12 23:38:52,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:52,500 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 2014 transitions. [2024-10-12 23:38:52,500 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) [2024-10-12 23:38:52,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 2014 transitions. [2024-10-12 23:38:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-10-12 23:38:52,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:52,505 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] [2024-10-12 23:38:52,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 23:38:52,505 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:52,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash -983161737, now seen corresponding path program 1 times [2024-10-12 23:38:52,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:52,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140693323] [2024-10-12 23:38:52,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:52,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:52,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:38:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:52,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:52,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140693323] [2024-10-12 23:38:52,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140693323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:52,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:52,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:38:52,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894013474] [2024-10-12 23:38:52,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:52,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:38:52,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:38:52,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:38:52,911 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) [2024-10-12 23:38:52,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:52,968 INFO L93 Difference]: Finished difference Result 2671 states and 3973 transitions. [2024-10-12 23:38:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:38:52,969 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 [2024-10-12 23:38:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:52,973 INFO L225 Difference]: With dead ends: 2671 [2024-10-12 23:38:52,974 INFO L226 Difference]: Without dead ends: 1354 [2024-10-12 23:38:52,976 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 [2024-10-12 23:38:52,977 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 [2024-10-12 23:38:52,978 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] [2024-10-12 23:38:52,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-10-12 23:38:52,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354. [2024-10-12 23:38:53,000 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) [2024-10-12 23:38:53,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 2012 transitions. [2024-10-12 23:38:53,005 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 2012 transitions. Word has length 296 [2024-10-12 23:38:53,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:53,006 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 2012 transitions. [2024-10-12 23:38:53,006 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) [2024-10-12 23:38:53,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 2012 transitions. [2024-10-12 23:38:53,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-12 23:38:53,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:53,011 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] [2024-10-12 23:38:53,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 23:38:53,011 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:53,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:53,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1774433102, now seen corresponding path program 1 times [2024-10-12 23:38:53,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:53,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709015616] [2024-10-12 23:38:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:53,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:53,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-12 23:38:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:53,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-12 23:38:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:53,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:53,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709015616] [2024-10-12 23:38:53,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709015616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:53,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:53,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:38:53,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403402791] [2024-10-12 23:38:53,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:53,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:38:53,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:53,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:38:53,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:38:53,715 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) [2024-10-12 23:38:53,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:53,855 INFO L93 Difference]: Finished difference Result 2819 states and 4187 transitions. [2024-10-12 23:38:53,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:38:53,856 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 [2024-10-12 23:38:53,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:53,863 INFO L225 Difference]: With dead ends: 2819 [2024-10-12 23:38:53,863 INFO L226 Difference]: Without dead ends: 1502 [2024-10-12 23:38:53,866 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 [2024-10-12 23:38:53,866 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 [2024-10-12 23:38:53,867 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] [2024-10-12 23:38:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-10-12 23:38:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1354. [2024-10-12 23:38:53,898 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) [2024-10-12 23:38:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 2011 transitions. [2024-10-12 23:38:53,903 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 2011 transitions. Word has length 297 [2024-10-12 23:38:53,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:53,903 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 2011 transitions. [2024-10-12 23:38:53,904 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) [2024-10-12 23:38:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 2011 transitions. [2024-10-12 23:38:53,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-12 23:38:53,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:53,909 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] [2024-10-12 23:38:53,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 23:38:53,909 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:53,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:53,910 INFO L85 PathProgramCache]: Analyzing trace with hash -659601327, now seen corresponding path program 1 times [2024-10-12 23:38:53,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:53,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169286908] [2024-10-12 23:38:53,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:53,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:55,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:38:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:55,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:38:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:55,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:55,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169286908] [2024-10-12 23:38:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169286908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:55,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:55,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:38:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340331228] [2024-10-12 23:38:55,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:55,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:38:55,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:55,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:38:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:38:55,092 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) [2024-10-12 23:38:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:55,372 INFO L93 Difference]: Finished difference Result 2671 states and 3967 transitions. [2024-10-12 23:38:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:38:55,373 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 [2024-10-12 23:38:55,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:55,378 INFO L225 Difference]: With dead ends: 2671 [2024-10-12 23:38:55,378 INFO L226 Difference]: Without dead ends: 1354 [2024-10-12 23:38:55,380 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 [2024-10-12 23:38:55,380 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 [2024-10-12 23:38:55,381 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] [2024-10-12 23:38:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-10-12 23:38:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1315. [2024-10-12 23:38:55,429 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) [2024-10-12 23:38:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1954 transitions. [2024-10-12 23:38:55,434 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1954 transitions. Word has length 297 [2024-10-12 23:38:55,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:55,434 INFO L471 AbstractCegarLoop]: Abstraction has 1315 states and 1954 transitions. [2024-10-12 23:38:55,435 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) [2024-10-12 23:38:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1954 transitions. [2024-10-12 23:38:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-12 23:38:55,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:55,441 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] [2024-10-12 23:38:55,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 23:38:55,441 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:55,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1608350443, now seen corresponding path program 1 times [2024-10-12 23:38:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:55,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702674988] [2024-10-12 23:38:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:55,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:56,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:56,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:38:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:56,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:56,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702674988] [2024-10-12 23:38:56,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702674988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:56,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:56,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:38:56,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555033184] [2024-10-12 23:38:56,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:56,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:38:56,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:56,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:38:56,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:38:56,351 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) [2024-10-12 23:38:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:56,555 INFO L93 Difference]: Finished difference Result 3244 states and 4821 transitions. [2024-10-12 23:38:56,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:38:56,556 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 [2024-10-12 23:38:56,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:56,563 INFO L225 Difference]: With dead ends: 3244 [2024-10-12 23:38:56,563 INFO L226 Difference]: Without dead ends: 1966 [2024-10-12 23:38:56,566 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 [2024-10-12 23:38:56,566 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 [2024-10-12 23:38:56,567 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] [2024-10-12 23:38:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2024-10-12 23:38:56,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1402. [2024-10-12 23:38:56,599 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) [2024-10-12 23:38:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2079 transitions. [2024-10-12 23:38:56,603 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2079 transitions. Word has length 297 [2024-10-12 23:38:56,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:56,603 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 2079 transitions. [2024-10-12 23:38:56,604 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) [2024-10-12 23:38:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2079 transitions. [2024-10-12 23:38:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-12 23:38:56,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:56,609 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] [2024-10-12 23:38:56,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 23:38:56,609 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:56,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:56,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2119882042, now seen corresponding path program 1 times [2024-10-12 23:38:56,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:56,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978722829] [2024-10-12 23:38:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:56,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:57,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:38:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:57,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:38:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:57,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:57,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978722829] [2024-10-12 23:38:57,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978722829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:57,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:57,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:38:57,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397308397] [2024-10-12 23:38:57,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:57,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:38:57,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:57,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:38:57,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:38:57,495 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) [2024-10-12 23:38:57,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:57,698 INFO L93 Difference]: Finished difference Result 3331 states and 4945 transitions. [2024-10-12 23:38:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:38:57,699 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 [2024-10-12 23:38:57,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:57,705 INFO L225 Difference]: With dead ends: 3331 [2024-10-12 23:38:57,705 INFO L226 Difference]: Without dead ends: 1966 [2024-10-12 23:38:57,708 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 [2024-10-12 23:38:57,709 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 [2024-10-12 23:38:57,709 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] [2024-10-12 23:38:57,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2024-10-12 23:38:57,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1410. [2024-10-12 23:38:57,739 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) [2024-10-12 23:38:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2090 transitions. [2024-10-12 23:38:57,742 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2090 transitions. Word has length 298 [2024-10-12 23:38:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:57,743 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 2090 transitions. [2024-10-12 23:38:57,743 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) [2024-10-12 23:38:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2090 transitions. [2024-10-12 23:38:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-12 23:38:57,750 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:57,750 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] [2024-10-12 23:38:57,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 23:38:57,750 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:57,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash 260175630, now seen corresponding path program 1 times [2024-10-12 23:38:57,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:57,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520491103] [2024-10-12 23:38:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:57,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:58,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:38:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:58,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:38:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:38:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:38:58,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:38:58,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520491103] [2024-10-12 23:38:58,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520491103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:38:58,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:38:58,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:38:58,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597114469] [2024-10-12 23:38:58,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:38:58,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:38:58,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:38:58,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:38:58,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:38:58,935 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) [2024-10-12 23:38:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:38:59,347 INFO L93 Difference]: Finished difference Result 2783 states and 4125 transitions. [2024-10-12 23:38:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:38:59,348 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 [2024-10-12 23:38:59,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:38:59,352 INFO L225 Difference]: With dead ends: 2783 [2024-10-12 23:38:59,352 INFO L226 Difference]: Without dead ends: 1410 [2024-10-12 23:38:59,354 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 [2024-10-12 23:38:59,355 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 [2024-10-12 23:38:59,355 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] [2024-10-12 23:38:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-10-12 23:38:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2024-10-12 23:38:59,381 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) [2024-10-12 23:38:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2088 transitions. [2024-10-12 23:38:59,385 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2088 transitions. Word has length 299 [2024-10-12 23:38:59,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:38:59,386 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 2088 transitions. [2024-10-12 23:38:59,386 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) [2024-10-12 23:38:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2088 transitions. [2024-10-12 23:38:59,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-12 23:38:59,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:38:59,390 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] [2024-10-12 23:38:59,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 23:38:59,391 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:38:59,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:38:59,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2031969149, now seen corresponding path program 1 times [2024-10-12 23:38:59,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:38:59,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873794858] [2024-10-12 23:38:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:38:59,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:38:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:00,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:39:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:00,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 23:39:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:00,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:00,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873794858] [2024-10-12 23:39:00,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873794858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:00,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:00,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:00,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975899763] [2024-10-12 23:39:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:00,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:00,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:00,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:00,125 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) [2024-10-12 23:39:00,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:00,332 INFO L93 Difference]: Finished difference Result 3339 states and 4951 transitions. [2024-10-12 23:39:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:39:00,333 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 [2024-10-12 23:39:00,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:00,340 INFO L225 Difference]: With dead ends: 3339 [2024-10-12 23:39:00,340 INFO L226 Difference]: Without dead ends: 1966 [2024-10-12 23:39:00,344 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 [2024-10-12 23:39:00,345 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 [2024-10-12 23:39:00,345 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] [2024-10-12 23:39:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2024-10-12 23:39:00,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1418. [2024-10-12 23:39:00,375 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) [2024-10-12 23:39:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2099 transitions. [2024-10-12 23:39:00,379 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2099 transitions. Word has length 299 [2024-10-12 23:39:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:00,379 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 2099 transitions. [2024-10-12 23:39:00,379 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) [2024-10-12 23:39:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2099 transitions. [2024-10-12 23:39:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-12 23:39:00,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:00,385 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] [2024-10-12 23:39:00,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 23:39:00,385 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:00,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash -963628285, now seen corresponding path program 1 times [2024-10-12 23:39:00,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:00,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190458098] [2024-10-12 23:39:00,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:01,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:01,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:01,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:01,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:01,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190458098] [2024-10-12 23:39:01,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190458098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:01,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:01,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:39:01,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770613851] [2024-10-12 23:39:01,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:01,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:39:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:39:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:39:01,196 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) [2024-10-12 23:39:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:01,321 INFO L93 Difference]: Finished difference Result 3515 states and 5196 transitions. [2024-10-12 23:39:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:39:01,322 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 [2024-10-12 23:39:01,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:01,330 INFO L225 Difference]: With dead ends: 3515 [2024-10-12 23:39:01,330 INFO L226 Difference]: Without dead ends: 2134 [2024-10-12 23:39:01,333 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 [2024-10-12 23:39:01,333 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 [2024-10-12 23:39:01,333 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] [2024-10-12 23:39:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2024-10-12 23:39:01,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2088. [2024-10-12 23:39:01,389 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) [2024-10-12 23:39:01,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3082 transitions. [2024-10-12 23:39:01,398 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3082 transitions. Word has length 300 [2024-10-12 23:39:01,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:01,399 INFO L471 AbstractCegarLoop]: Abstraction has 2088 states and 3082 transitions. [2024-10-12 23:39:01,399 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) [2024-10-12 23:39:01,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3082 transitions. [2024-10-12 23:39:01,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-12 23:39:01,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:01,405 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] [2024-10-12 23:39:01,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 23:39:01,406 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:01,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:01,406 INFO L85 PathProgramCache]: Analyzing trace with hash 51866483, now seen corresponding path program 1 times [2024-10-12 23:39:01,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:01,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384711858] [2024-10-12 23:39:01,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:01,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:01,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:01,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:01,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384711858] [2024-10-12 23:39:01,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384711858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:01,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:01,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:39:01,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909697645] [2024-10-12 23:39:01,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:01,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:39:01,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:01,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:39:01,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:01,887 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) [2024-10-12 23:39:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:01,939 INFO L93 Difference]: Finished difference Result 3469 states and 5126 transitions. [2024-10-12 23:39:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:01,939 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 [2024-10-12 23:39:01,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:01,946 INFO L225 Difference]: With dead ends: 3469 [2024-10-12 23:39:01,946 INFO L226 Difference]: Without dead ends: 2088 [2024-10-12 23:39:01,949 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 [2024-10-12 23:39:01,949 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 [2024-10-12 23:39:01,949 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] [2024-10-12 23:39:01,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2024-10-12 23:39:01,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2024-10-12 23:39:01,989 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) [2024-10-12 23:39:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3080 transitions. [2024-10-12 23:39:01,997 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3080 transitions. Word has length 301 [2024-10-12 23:39:01,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:01,998 INFO L471 AbstractCegarLoop]: Abstraction has 2088 states and 3080 transitions. [2024-10-12 23:39:01,999 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) [2024-10-12 23:39:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3080 transitions. [2024-10-12 23:39:02,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-12 23:39:02,004 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:02,004 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] [2024-10-12 23:39:02,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 23:39:02,005 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:02,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:02,006 INFO L85 PathProgramCache]: Analyzing trace with hash -592468334, now seen corresponding path program 1 times [2024-10-12 23:39:02,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:02,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600653651] [2024-10-12 23:39:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:02,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:03,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 23:39:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:03,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 23:39:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:03,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:03,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:03,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600653651] [2024-10-12 23:39:03,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600653651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:03,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:03,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 23:39:03,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264832943] [2024-10-12 23:39:03,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:03,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 23:39:03,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:03,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 23:39:03,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-12 23:39:03,337 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) [2024-10-12 23:39:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:04,020 INFO L93 Difference]: Finished difference Result 4820 states and 7107 transitions. [2024-10-12 23:39:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 23:39:04,021 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 [2024-10-12 23:39:04,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:04,045 INFO L225 Difference]: With dead ends: 4820 [2024-10-12 23:39:04,045 INFO L226 Difference]: Without dead ends: 3439 [2024-10-12 23:39:04,052 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 [2024-10-12 23:39:04,052 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 [2024-10-12 23:39:04,053 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] [2024-10-12 23:39:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2024-10-12 23:39:04,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 2785. [2024-10-12 23:39:04,118 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) [2024-10-12 23:39:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4102 transitions. [2024-10-12 23:39:04,124 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4102 transitions. Word has length 301 [2024-10-12 23:39:04,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:04,126 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4102 transitions. [2024-10-12 23:39:04,127 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) [2024-10-12 23:39:04,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4102 transitions. [2024-10-12 23:39:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-12 23:39:04,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:04,133 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] [2024-10-12 23:39:04,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 23:39:04,133 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:04,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:04,133 INFO L85 PathProgramCache]: Analyzing trace with hash 590275744, now seen corresponding path program 1 times [2024-10-12 23:39:04,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753332768] [2024-10-12 23:39:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:04,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:04,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:04,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:04,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753332768] [2024-10-12 23:39:04,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753332768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:04,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:04,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:04,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876842301] [2024-10-12 23:39:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:04,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:04,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:04,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:04,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:04,970 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) [2024-10-12 23:39:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:05,151 INFO L93 Difference]: Finished difference Result 4596 states and 6786 transitions. [2024-10-12 23:39:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:05,151 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 [2024-10-12 23:39:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:05,158 INFO L225 Difference]: With dead ends: 4596 [2024-10-12 23:39:05,158 INFO L226 Difference]: Without dead ends: 3215 [2024-10-12 23:39:05,161 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 [2024-10-12 23:39:05,161 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 [2024-10-12 23:39:05,161 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] [2024-10-12 23:39:05,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2024-10-12 23:39:05,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 2801. [2024-10-12 23:39:05,206 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) [2024-10-12 23:39:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 4122 transitions. [2024-10-12 23:39:05,211 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 4122 transitions. Word has length 302 [2024-10-12 23:39:05,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:05,212 INFO L471 AbstractCegarLoop]: Abstraction has 2801 states and 4122 transitions. [2024-10-12 23:39:05,212 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) [2024-10-12 23:39:05,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 4122 transitions. [2024-10-12 23:39:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-12 23:39:05,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:05,218 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] [2024-10-12 23:39:05,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 23:39:05,219 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:05,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:05,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1448428072, now seen corresponding path program 1 times [2024-10-12 23:39:05,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:05,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415763901] [2024-10-12 23:39:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:06,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 23:39:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:06,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 23:39:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:06,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:06,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:06,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415763901] [2024-10-12 23:39:06,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415763901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:06,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:06,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:06,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509862895] [2024-10-12 23:39:06,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:06,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:06,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:06,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:06,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:06,189 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) [2024-10-12 23:39:06,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:06,351 INFO L93 Difference]: Finished difference Result 4820 states and 7101 transitions. [2024-10-12 23:39:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:06,352 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 [2024-10-12 23:39:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:06,359 INFO L225 Difference]: With dead ends: 4820 [2024-10-12 23:39:06,359 INFO L226 Difference]: Without dead ends: 3439 [2024-10-12 23:39:06,361 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 [2024-10-12 23:39:06,362 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 [2024-10-12 23:39:06,362 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] [2024-10-12 23:39:06,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2024-10-12 23:39:06,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3433. [2024-10-12 23:39:06,419 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) [2024-10-12 23:39:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5047 transitions. [2024-10-12 23:39:06,425 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5047 transitions. Word has length 302 [2024-10-12 23:39:06,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:06,425 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 5047 transitions. [2024-10-12 23:39:06,426 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) [2024-10-12 23:39:06,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5047 transitions. [2024-10-12 23:39:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-12 23:39:06,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:06,432 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] [2024-10-12 23:39:06,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 23:39:06,432 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:06,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:06,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1471727078, now seen corresponding path program 1 times [2024-10-12 23:39:06,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:06,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150949704] [2024-10-12 23:39:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:06,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:07,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:07,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:07,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:07,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150949704] [2024-10-12 23:39:07,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150949704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:07,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:07,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:07,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855838297] [2024-10-12 23:39:07,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:07,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:07,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:07,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:07,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:07,429 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) [2024-10-12 23:39:07,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:07,810 INFO L93 Difference]: Finished difference Result 5926 states and 8741 transitions. [2024-10-12 23:39:07,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:07,811 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 [2024-10-12 23:39:07,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:07,818 INFO L225 Difference]: With dead ends: 5926 [2024-10-12 23:39:07,819 INFO L226 Difference]: Without dead ends: 3433 [2024-10-12 23:39:07,822 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 [2024-10-12 23:39:07,823 INFO L432 NwaCegarLoop]: 1087 mSDtfsCounter, 2050 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-10-12 23:39:07,823 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] [2024-10-12 23:39:07,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2024-10-12 23:39:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3433. [2024-10-12 23:39:07,873 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) [2024-10-12 23:39:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5039 transitions. [2024-10-12 23:39:07,880 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5039 transitions. Word has length 302 [2024-10-12 23:39:07,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:07,881 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 5039 transitions. [2024-10-12 23:39:07,881 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) [2024-10-12 23:39:07,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5039 transitions. [2024-10-12 23:39:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-10-12 23:39:07,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:07,888 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] [2024-10-12 23:39:07,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 23:39:07,889 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:07,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:07,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1787221317, now seen corresponding path program 1 times [2024-10-12 23:39:07,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:07,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501394581] [2024-10-12 23:39:07,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:07,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:08,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:08,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:08,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501394581] [2024-10-12 23:39:08,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501394581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:08,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:08,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:08,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534792602] [2024-10-12 23:39:08,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:08,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:08,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:08,729 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) [2024-10-12 23:39:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:08,950 INFO L93 Difference]: Finished difference Result 6408 states and 9449 transitions. [2024-10-12 23:39:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:39:08,951 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 [2024-10-12 23:39:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:08,961 INFO L225 Difference]: With dead ends: 6408 [2024-10-12 23:39:08,962 INFO L226 Difference]: Without dead ends: 4519 [2024-10-12 23:39:08,966 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 [2024-10-12 23:39:08,967 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 [2024-10-12 23:39:08,967 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] [2024-10-12 23:39:08,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2024-10-12 23:39:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 3465. [2024-10-12 23:39:09,022 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) [2024-10-12 23:39:09,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 5083 transitions. [2024-10-12 23:39:09,029 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 5083 transitions. Word has length 302 [2024-10-12 23:39:09,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:09,029 INFO L471 AbstractCegarLoop]: Abstraction has 3465 states and 5083 transitions. [2024-10-12 23:39:09,030 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) [2024-10-12 23:39:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 5083 transitions. [2024-10-12 23:39:09,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-10-12 23:39:09,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:09,038 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] [2024-10-12 23:39:09,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 23:39:09,038 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:09,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1702702173, now seen corresponding path program 1 times [2024-10-12 23:39:09,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:09,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221465095] [2024-10-12 23:39:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:09,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:10,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:10,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:10,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:10,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:10,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221465095] [2024-10-12 23:39:10,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221465095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:10,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:10,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 23:39:10,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474750806] [2024-10-12 23:39:10,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:10,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 23:39:10,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:10,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 23:39:10,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 23:39:10,425 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) [2024-10-12 23:39:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:10,713 INFO L93 Difference]: Finished difference Result 4868 states and 7154 transitions. [2024-10-12 23:39:10,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:10,714 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 [2024-10-12 23:39:10,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:10,722 INFO L225 Difference]: With dead ends: 4868 [2024-10-12 23:39:10,723 INFO L226 Difference]: Without dead ends: 3479 [2024-10-12 23:39:10,726 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 [2024-10-12 23:39:10,726 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, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:10,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 4449 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 23:39:10,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2024-10-12 23:39:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2024-10-12 23:39:10,774 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) [2024-10-12 23:39:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 5099 transitions. [2024-10-12 23:39:10,782 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 5099 transitions. Word has length 303 [2024-10-12 23:39:10,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:10,783 INFO L471 AbstractCegarLoop]: Abstraction has 3477 states and 5099 transitions. [2024-10-12 23:39:10,783 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) [2024-10-12 23:39:10,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 5099 transitions. [2024-10-12 23:39:10,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-10-12 23:39:10,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:10,791 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] [2024-10-12 23:39:10,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 23:39:10,791 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:10,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:10,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1014181245, now seen corresponding path program 1 times [2024-10-12 23:39:10,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:10,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543551290] [2024-10-12 23:39:10,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:10,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:11,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:11,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:11,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:11,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543551290] [2024-10-12 23:39:11,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543551290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:11,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:11,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:11,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004627118] [2024-10-12 23:39:11,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:11,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:11,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:11,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:11,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:11,775 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) [2024-10-12 23:39:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:12,156 INFO L93 Difference]: Finished difference Result 5942 states and 8746 transitions. [2024-10-12 23:39:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:12,157 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 [2024-10-12 23:39:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:12,167 INFO L225 Difference]: With dead ends: 5942 [2024-10-12 23:39:12,167 INFO L226 Difference]: Without dead ends: 3477 [2024-10-12 23:39:12,171 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 [2024-10-12 23:39:12,172 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 [2024-10-12 23:39:12,173 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] [2024-10-12 23:39:12,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2024-10-12 23:39:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3477. [2024-10-12 23:39:12,224 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) [2024-10-12 23:39:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 5091 transitions. [2024-10-12 23:39:12,233 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 5091 transitions. Word has length 304 [2024-10-12 23:39:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:12,233 INFO L471 AbstractCegarLoop]: Abstraction has 3477 states and 5091 transitions. [2024-10-12 23:39:12,233 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) [2024-10-12 23:39:12,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 5091 transitions. [2024-10-12 23:39:12,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-10-12 23:39:12,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:12,240 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] [2024-10-12 23:39:12,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 23:39:12,241 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:12,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:12,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1752853812, now seen corresponding path program 1 times [2024-10-12 23:39:12,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:12,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939403385] [2024-10-12 23:39:12,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:12,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:12,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:12,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:12,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:12,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939403385] [2024-10-12 23:39:12,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939403385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:12,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:12,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:12,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788870429] [2024-10-12 23:39:12,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:12,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:12,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:12,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:12,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:12,874 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) [2024-10-12 23:39:13,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:13,099 INFO L93 Difference]: Finished difference Result 6422 states and 9450 transitions. [2024-10-12 23:39:13,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:39:13,099 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 [2024-10-12 23:39:13,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:13,108 INFO L225 Difference]: With dead ends: 6422 [2024-10-12 23:39:13,108 INFO L226 Difference]: Without dead ends: 4537 [2024-10-12 23:39:13,112 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 [2024-10-12 23:39:13,112 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 [2024-10-12 23:39:13,112 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] [2024-10-12 23:39:13,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4537 states. [2024-10-12 23:39:13,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4537 to 3509. [2024-10-12 23:39:13,165 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) [2024-10-12 23:39:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 5135 transitions. [2024-10-12 23:39:13,172 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 5135 transitions. Word has length 304 [2024-10-12 23:39:13,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:13,172 INFO L471 AbstractCegarLoop]: Abstraction has 3509 states and 5135 transitions. [2024-10-12 23:39:13,172 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) [2024-10-12 23:39:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 5135 transitions. [2024-10-12 23:39:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-10-12 23:39:13,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:13,179 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] [2024-10-12 23:39:13,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 23:39:13,179 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:13,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:13,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1387784008, now seen corresponding path program 1 times [2024-10-12 23:39:13,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:13,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533853262] [2024-10-12 23:39:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:13,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:14,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:14,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:14,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:14,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:14,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533853262] [2024-10-12 23:39:14,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533853262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:14,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:14,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 23:39:14,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10405206] [2024-10-12 23:39:14,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:14,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 23:39:14,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:14,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 23:39:14,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-12 23:39:14,420 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) [2024-10-12 23:39:15,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:15,361 INFO L93 Difference]: Finished difference Result 7638 states and 11198 transitions. [2024-10-12 23:39:15,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 23:39:15,362 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 [2024-10-12 23:39:15,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:15,374 INFO L225 Difference]: With dead ends: 7638 [2024-10-12 23:39:15,375 INFO L226 Difference]: Without dead ends: 5413 [2024-10-12 23:39:15,379 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 [2024-10-12 23:39:15,379 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 [2024-10-12 23:39:15,380 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] [2024-10-12 23:39:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5413 states. [2024-10-12 23:39:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5413 to 3947. [2024-10-12 23:39:15,453 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) [2024-10-12 23:39:15,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 5757 transitions. [2024-10-12 23:39:15,460 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 5757 transitions. Word has length 305 [2024-10-12 23:39:15,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:15,460 INFO L471 AbstractCegarLoop]: Abstraction has 3947 states and 5757 transitions. [2024-10-12 23:39:15,460 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) [2024-10-12 23:39:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 5757 transitions. [2024-10-12 23:39:15,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-10-12 23:39:15,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:15,469 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] [2024-10-12 23:39:15,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 23:39:15,470 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:15,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash 696769146, now seen corresponding path program 1 times [2024-10-12 23:39:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:15,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086526769] [2024-10-12 23:39:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:15,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:16,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 23:39:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:16,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:16,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:16,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086526769] [2024-10-12 23:39:16,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086526769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:16,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:16,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:16,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715148777] [2024-10-12 23:39:16,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:16,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:16,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:16,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:16,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:16,364 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) [2024-10-12 23:39:16,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:16,713 INFO L93 Difference]: Finished difference Result 6588 states and 9649 transitions. [2024-10-12 23:39:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:16,714 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 [2024-10-12 23:39:16,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:16,733 INFO L225 Difference]: With dead ends: 6588 [2024-10-12 23:39:16,736 INFO L226 Difference]: Without dead ends: 3947 [2024-10-12 23:39:16,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-12 23:39:16,746 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 [2024-10-12 23:39:16,747 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] [2024-10-12 23:39:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2024-10-12 23:39:16,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3947. [2024-10-12 23:39:16,812 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) [2024-10-12 23:39:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 5749 transitions. [2024-10-12 23:39:16,819 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 5749 transitions. Word has length 306 [2024-10-12 23:39:16,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:16,819 INFO L471 AbstractCegarLoop]: Abstraction has 3947 states and 5749 transitions. [2024-10-12 23:39:16,819 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) [2024-10-12 23:39:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 5749 transitions. [2024-10-12 23:39:16,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-10-12 23:39:16,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:16,827 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] [2024-10-12 23:39:16,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 23:39:16,827 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:16,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:16,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1244493655, now seen corresponding path program 1 times [2024-10-12 23:39:16,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:16,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395399509] [2024-10-12 23:39:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:16,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:17,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-12 23:39:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:17,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:17,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:17,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395399509] [2024-10-12 23:39:17,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395399509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:17,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:17,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:17,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424528347] [2024-10-12 23:39:17,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:17,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:17,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:17,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:17,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:17,452 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) [2024-10-12 23:39:17,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:17,642 INFO L93 Difference]: Finished difference Result 7060 states and 10341 transitions. [2024-10-12 23:39:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:39:17,643 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 [2024-10-12 23:39:17,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:17,652 INFO L225 Difference]: With dead ends: 7060 [2024-10-12 23:39:17,652 INFO L226 Difference]: Without dead ends: 4975 [2024-10-12 23:39:17,657 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 [2024-10-12 23:39:17,658 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 [2024-10-12 23:39:17,658 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] [2024-10-12 23:39:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2024-10-12 23:39:17,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 3979. [2024-10-12 23:39:17,721 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) [2024-10-12 23:39:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 5793 transitions. [2024-10-12 23:39:17,729 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 5793 transitions. Word has length 306 [2024-10-12 23:39:17,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:17,729 INFO L471 AbstractCegarLoop]: Abstraction has 3979 states and 5793 transitions. [2024-10-12 23:39:17,729 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) [2024-10-12 23:39:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 5793 transitions. [2024-10-12 23:39:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-12 23:39:17,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:17,742 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] [2024-10-12 23:39:17,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 23:39:17,742 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:17,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:17,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1846542485, now seen corresponding path program 1 times [2024-10-12 23:39:17,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:17,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565667167] [2024-10-12 23:39:17,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:17,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:18,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 23:39:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:18,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:18,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:18,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565667167] [2024-10-12 23:39:18,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565667167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:18,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:18,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 23:39:18,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075710914] [2024-10-12 23:39:18,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:18,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 23:39:18,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:18,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 23:39:18,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-12 23:39:18,617 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) [2024-10-12 23:39:19,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:19,273 INFO L93 Difference]: Finished difference Result 5632 states and 8216 transitions. [2024-10-12 23:39:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 23:39:19,274 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 [2024-10-12 23:39:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:19,283 INFO L225 Difference]: With dead ends: 5632 [2024-10-12 23:39:19,283 INFO L226 Difference]: Without dead ends: 3999 [2024-10-12 23:39:19,287 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 [2024-10-12 23:39:19,288 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 1484 mSDsluCounter, 7170 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:19,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 8700 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 23:39:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2024-10-12 23:39:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3993. [2024-10-12 23:39:19,366 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) [2024-10-12 23:39:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3993 states to 3993 states and 5813 transitions. [2024-10-12 23:39:19,375 INFO L78 Accepts]: Start accepts. Automaton has 3993 states and 5813 transitions. Word has length 307 [2024-10-12 23:39:19,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:19,375 INFO L471 AbstractCegarLoop]: Abstraction has 3993 states and 5813 transitions. [2024-10-12 23:39:19,376 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) [2024-10-12 23:39:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3993 states and 5813 transitions. [2024-10-12 23:39:19,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-12 23:39:19,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:19,384 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] [2024-10-12 23:39:19,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 23:39:19,385 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:19,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:19,385 INFO L85 PathProgramCache]: Analyzing trace with hash -396104209, now seen corresponding path program 1 times [2024-10-12 23:39:19,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:19,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401304872] [2024-10-12 23:39:19,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:19,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:19,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:19,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401304872] [2024-10-12 23:39:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401304872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:19,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:19,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:39:19,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813532954] [2024-10-12 23:39:19,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:19,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:39:19,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:19,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:39:19,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:39:19,821 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) [2024-10-12 23:39:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:19,891 INFO L93 Difference]: Finished difference Result 6890 states and 10049 transitions. [2024-10-12 23:39:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:39:19,892 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 [2024-10-12 23:39:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:19,898 INFO L225 Difference]: With dead ends: 6890 [2024-10-12 23:39:19,898 INFO L226 Difference]: Without dead ends: 4041 [2024-10-12 23:39:19,901 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 [2024-10-12 23:39:19,902 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 [2024-10-12 23:39:19,902 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] [2024-10-12 23:39:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4041 states. [2024-10-12 23:39:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4041 to 4029. [2024-10-12 23:39:19,957 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) [2024-10-12 23:39:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 5849 transitions. [2024-10-12 23:39:19,963 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 5849 transitions. Word has length 307 [2024-10-12 23:39:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:19,964 INFO L471 AbstractCegarLoop]: Abstraction has 4029 states and 5849 transitions. [2024-10-12 23:39:19,964 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) [2024-10-12 23:39:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 5849 transitions. [2024-10-12 23:39:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-12 23:39:19,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:19,972 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] [2024-10-12 23:39:19,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-12 23:39:19,974 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:19,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:19,974 INFO L85 PathProgramCache]: Analyzing trace with hash 311700435, now seen corresponding path program 1 times [2024-10-12 23:39:19,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:19,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821932315] [2024-10-12 23:39:19,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:19,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:20,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:20,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:20,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:20,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821932315] [2024-10-12 23:39:20,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821932315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:20,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:20,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:39:20,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026816181] [2024-10-12 23:39:20,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:20,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:39:20,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:20,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:39:20,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:20,396 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) [2024-10-12 23:39:20,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:20,444 INFO L93 Difference]: Finished difference Result 7049 states and 10241 transitions. [2024-10-12 23:39:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:20,445 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 [2024-10-12 23:39:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:20,450 INFO L225 Difference]: With dead ends: 7049 [2024-10-12 23:39:20,450 INFO L226 Difference]: Without dead ends: 4083 [2024-10-12 23:39:20,454 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 [2024-10-12 23:39:20,454 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 [2024-10-12 23:39:20,454 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] [2024-10-12 23:39:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2024-10-12 23:39:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4083. [2024-10-12 23:39:20,497 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) [2024-10-12 23:39:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 5903 transitions. [2024-10-12 23:39:20,502 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 5903 transitions. Word has length 307 [2024-10-12 23:39:20,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:20,503 INFO L471 AbstractCegarLoop]: Abstraction has 4083 states and 5903 transitions. [2024-10-12 23:39:20,503 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) [2024-10-12 23:39:20,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 5903 transitions. [2024-10-12 23:39:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-12 23:39:20,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:20,508 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] [2024-10-12 23:39:20,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-12 23:39:20,509 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:20,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1610662837, now seen corresponding path program 1 times [2024-10-12 23:39:20,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:20,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049721290] [2024-10-12 23:39:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:20,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:21,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:21,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 23:39:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:21,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:21,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049721290] [2024-10-12 23:39:21,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049721290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:21,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:21,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:21,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63334424] [2024-10-12 23:39:21,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:21,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:21,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:21,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:21,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:21,393 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) [2024-10-12 23:39:21,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:21,644 INFO L93 Difference]: Finished difference Result 6779 states and 9809 transitions. [2024-10-12 23:39:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:39:21,645 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 [2024-10-12 23:39:21,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:21,656 INFO L225 Difference]: With dead ends: 6779 [2024-10-12 23:39:21,656 INFO L226 Difference]: Without dead ends: 5037 [2024-10-12 23:39:21,660 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 [2024-10-12 23:39:21,661 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, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:21,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 4405 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 23:39:21,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5037 states. [2024-10-12 23:39:21,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5037 to 4991. [2024-10-12 23:39:21,728 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) [2024-10-12 23:39:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7201 transitions. [2024-10-12 23:39:21,736 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7201 transitions. Word has length 307 [2024-10-12 23:39:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:21,736 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7201 transitions. [2024-10-12 23:39:21,737 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) [2024-10-12 23:39:21,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7201 transitions. [2024-10-12 23:39:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-10-12 23:39:21,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:21,742 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] [2024-10-12 23:39:21,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-12 23:39:21,743 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:21,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:21,743 INFO L85 PathProgramCache]: Analyzing trace with hash 877932743, now seen corresponding path program 1 times [2024-10-12 23:39:21,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:21,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639433890] [2024-10-12 23:39:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:21,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:22,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:22,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 23:39:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:22,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:22,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:22,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639433890] [2024-10-12 23:39:22,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639433890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:22,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:22,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:22,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432377921] [2024-10-12 23:39:22,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:22,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:22,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:22,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:22,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:22,620 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) [2024-10-12 23:39:22,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:22,959 INFO L93 Difference]: Finished difference Result 7925 states and 11509 transitions. [2024-10-12 23:39:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:22,960 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 [2024-10-12 23:39:22,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:22,969 INFO L225 Difference]: With dead ends: 7925 [2024-10-12 23:39:22,969 INFO L226 Difference]: Without dead ends: 4991 [2024-10-12 23:39:22,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-12 23:39:22,976 INFO L432 NwaCegarLoop]: 1084 mSDtfsCounter, 1429 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-10-12 23:39:22,976 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] [2024-10-12 23:39:22,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4991 states. [2024-10-12 23:39:23,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4991 to 4991. [2024-10-12 23:39:23,042 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) [2024-10-12 23:39:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7191 transitions. [2024-10-12 23:39:23,050 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7191 transitions. Word has length 308 [2024-10-12 23:39:23,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:23,051 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7191 transitions. [2024-10-12 23:39:23,051 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) [2024-10-12 23:39:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7191 transitions. [2024-10-12 23:39:23,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-10-12 23:39:23,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:23,057 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] [2024-10-12 23:39:23,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-12 23:39:23,057 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:23,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:23,057 INFO L85 PathProgramCache]: Analyzing trace with hash -50198628, now seen corresponding path program 1 times [2024-10-12 23:39:23,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:23,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40909987] [2024-10-12 23:39:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:23,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:23,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 23:39:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:23,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-12 23:39:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:23,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:23,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40909987] [2024-10-12 23:39:23,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40909987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:23,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:23,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133283613] [2024-10-12 23:39:23,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:23,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:23,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:23,670 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) [2024-10-12 23:39:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:23,844 INFO L93 Difference]: Finished difference Result 8367 states and 12154 transitions. [2024-10-12 23:39:23,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:39:23,845 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 [2024-10-12 23:39:23,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:23,854 INFO L225 Difference]: With dead ends: 8367 [2024-10-12 23:39:23,854 INFO L226 Difference]: Without dead ends: 6134 [2024-10-12 23:39:23,860 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 [2024-10-12 23:39:23,860 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 [2024-10-12 23:39:23,861 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] [2024-10-12 23:39:23,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2024-10-12 23:39:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 5031. [2024-10-12 23:39:23,935 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) [2024-10-12 23:39:23,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5031 states to 5031 states and 7246 transitions. [2024-10-12 23:39:23,943 INFO L78 Accepts]: Start accepts. Automaton has 5031 states and 7246 transitions. Word has length 308 [2024-10-12 23:39:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:23,943 INFO L471 AbstractCegarLoop]: Abstraction has 5031 states and 7246 transitions. [2024-10-12 23:39:23,944 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) [2024-10-12 23:39:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5031 states and 7246 transitions. [2024-10-12 23:39:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-12 23:39:23,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:23,950 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] [2024-10-12 23:39:23,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-12 23:39:23,950 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:23,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:23,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2052597564, now seen corresponding path program 1 times [2024-10-12 23:39:23,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:23,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754541847] [2024-10-12 23:39:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:23,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:24,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:24,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 23:39:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:24,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754541847] [2024-10-12 23:39:24,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754541847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:24,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:24,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 23:39:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300202360] [2024-10-12 23:39:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:24,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 23:39:24,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:24,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 23:39:24,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-12 23:39:24,870 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) [2024-10-12 23:39:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:25,204 INFO L93 Difference]: Finished difference Result 7121 states and 10307 transitions. [2024-10-12 23:39:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 23:39:25,204 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 [2024-10-12 23:39:25,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:25,209 INFO L225 Difference]: With dead ends: 7121 [2024-10-12 23:39:25,209 INFO L226 Difference]: Without dead ends: 5453 [2024-10-12 23:39:25,212 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 [2024-10-12 23:39:25,212 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 [2024-10-12 23:39:25,212 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] [2024-10-12 23:39:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2024-10-12 23:39:25,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 5037. [2024-10-12 23:39:25,288 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) [2024-10-12 23:39:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 7254 transitions. [2024-10-12 23:39:25,300 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 7254 transitions. Word has length 309 [2024-10-12 23:39:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:25,303 INFO L471 AbstractCegarLoop]: Abstraction has 5037 states and 7254 transitions. [2024-10-12 23:39:25,303 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) [2024-10-12 23:39:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 7254 transitions. [2024-10-12 23:39:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-10-12 23:39:25,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:25,310 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] [2024-10-12 23:39:25,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-12 23:39:25,311 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:25,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:25,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1018144227, now seen corresponding path program 1 times [2024-10-12 23:39:25,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:25,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947883269] [2024-10-12 23:39:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:25,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:25,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:25,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 23:39:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:25,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:25,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947883269] [2024-10-12 23:39:25,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947883269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:25,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:25,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:25,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800678217] [2024-10-12 23:39:25,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:25,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:25,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:25,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:25,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:25,831 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) [2024-10-12 23:39:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:26,012 INFO L93 Difference]: Finished difference Result 7117 states and 10299 transitions. [2024-10-12 23:39:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:26,013 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 [2024-10-12 23:39:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:26,020 INFO L225 Difference]: With dead ends: 7117 [2024-10-12 23:39:26,021 INFO L226 Difference]: Without dead ends: 5449 [2024-10-12 23:39:26,025 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 [2024-10-12 23:39:26,025 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 [2024-10-12 23:39:26,026 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] [2024-10-12 23:39:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2024-10-12 23:39:26,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5083. [2024-10-12 23:39:26,102 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) [2024-10-12 23:39:26,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 7320 transitions. [2024-10-12 23:39:26,112 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 7320 transitions. Word has length 310 [2024-10-12 23:39:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:26,112 INFO L471 AbstractCegarLoop]: Abstraction has 5083 states and 7320 transitions. [2024-10-12 23:39:26,113 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) [2024-10-12 23:39:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 7320 transitions. [2024-10-12 23:39:26,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-10-12 23:39:26,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:26,119 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] [2024-10-12 23:39:26,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-12 23:39:26,119 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:26,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1935509025, now seen corresponding path program 1 times [2024-10-12 23:39:26,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:26,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182830942] [2024-10-12 23:39:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:27,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:27,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 23:39:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:27,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:27,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182830942] [2024-10-12 23:39:27,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182830942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:27,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:27,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 23:39:27,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855087971] [2024-10-12 23:39:27,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:27,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 23:39:27,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:27,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 23:39:27,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 23:39:27,284 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) [2024-10-12 23:39:27,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:27,757 INFO L93 Difference]: Finished difference Result 8103 states and 11715 transitions. [2024-10-12 23:39:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 23:39:27,758 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 [2024-10-12 23:39:27,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:27,763 INFO L225 Difference]: With dead ends: 8103 [2024-10-12 23:39:27,763 INFO L226 Difference]: Without dead ends: 5137 [2024-10-12 23:39:27,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-10-12 23:39:27,767 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 2364 mSDsluCounter, 5237 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-10-12 23:39:27,767 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] [2024-10-12 23:39:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2024-10-12 23:39:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 4432. [2024-10-12 23:39:27,827 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) [2024-10-12 23:39:27,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 6393 transitions. [2024-10-12 23:39:27,834 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 6393 transitions. Word has length 310 [2024-10-12 23:39:27,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:27,834 INFO L471 AbstractCegarLoop]: Abstraction has 4432 states and 6393 transitions. [2024-10-12 23:39:27,834 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) [2024-10-12 23:39:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 6393 transitions. [2024-10-12 23:39:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-10-12 23:39:27,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:27,840 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] [2024-10-12 23:39:27,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-12 23:39:27,840 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:27,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:27,841 INFO L85 PathProgramCache]: Analyzing trace with hash 249000637, now seen corresponding path program 1 times [2024-10-12 23:39:27,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:27,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992612302] [2024-10-12 23:39:27,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:27,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:28,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:28,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:28,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:28,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992612302] [2024-10-12 23:39:28,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992612302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:28,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:28,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:28,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534491031] [2024-10-12 23:39:28,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:28,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:28,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:28,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:28,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:28,530 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) [2024-10-12 23:39:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:28,861 INFO L93 Difference]: Finished difference Result 6361 states and 9221 transitions. [2024-10-12 23:39:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 23:39:28,861 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 [2024-10-12 23:39:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:28,866 INFO L225 Difference]: With dead ends: 6361 [2024-10-12 23:39:28,866 INFO L226 Difference]: Without dead ends: 4862 [2024-10-12 23:39:28,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 23:39:28,869 INFO L432 NwaCegarLoop]: 1089 mSDtfsCounter, 2044 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:28,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 5410 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 23:39:28,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4862 states. [2024-10-12 23:39:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4862 to 4448. [2024-10-12 23:39:28,931 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) [2024-10-12 23:39:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 6409 transitions. [2024-10-12 23:39:28,938 INFO L78 Accepts]: Start accepts. Automaton has 4448 states and 6409 transitions. Word has length 311 [2024-10-12 23:39:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:28,939 INFO L471 AbstractCegarLoop]: Abstraction has 4448 states and 6409 transitions. [2024-10-12 23:39:28,939 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) [2024-10-12 23:39:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4448 states and 6409 transitions. [2024-10-12 23:39:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-10-12 23:39:28,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:28,945 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] [2024-10-12 23:39:28,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-12 23:39:28,945 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:28,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 2088815387, now seen corresponding path program 1 times [2024-10-12 23:39:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:28,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667629893] [2024-10-12 23:39:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:28,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:29,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:29,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:29,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:29,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:29,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667629893] [2024-10-12 23:39:29,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667629893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:29,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:29,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:29,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569728919] [2024-10-12 23:39:29,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:29,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:29,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:29,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:29,503 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) [2024-10-12 23:39:29,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:29,568 INFO L93 Difference]: Finished difference Result 5905 states and 8539 transitions. [2024-10-12 23:39:29,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 23:39:29,568 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 [2024-10-12 23:39:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:29,572 INFO L225 Difference]: With dead ends: 5905 [2024-10-12 23:39:29,572 INFO L226 Difference]: Without dead ends: 4456 [2024-10-12 23:39:29,573 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 [2024-10-12 23:39:29,574 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, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:29,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 4715 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:39:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2024-10-12 23:39:29,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4452. [2024-10-12 23:39:29,621 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) [2024-10-12 23:39:29,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6413 transitions. [2024-10-12 23:39:29,627 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 6413 transitions. Word has length 312 [2024-10-12 23:39:29,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:29,627 INFO L471 AbstractCegarLoop]: Abstraction has 4452 states and 6413 transitions. [2024-10-12 23:39:29,627 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) [2024-10-12 23:39:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 6413 transitions. [2024-10-12 23:39:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-10-12 23:39:29,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:29,632 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] [2024-10-12 23:39:29,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-12 23:39:29,632 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:29,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:29,633 INFO L85 PathProgramCache]: Analyzing trace with hash -96647525, now seen corresponding path program 1 times [2024-10-12 23:39:29,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:29,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043297579] [2024-10-12 23:39:29,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:29,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:30,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:30,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:30,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:30,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043297579] [2024-10-12 23:39:30,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043297579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:30,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:30,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 23:39:30,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059656004] [2024-10-12 23:39:30,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:30,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 23:39:30,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 23:39:30,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-12 23:39:30,548 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) [2024-10-12 23:39:31,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:31,201 INFO L93 Difference]: Finished difference Result 9802 states and 14175 transitions. [2024-10-12 23:39:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 23:39:31,202 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 [2024-10-12 23:39:31,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:31,208 INFO L225 Difference]: With dead ends: 9802 [2024-10-12 23:39:31,209 INFO L226 Difference]: Without dead ends: 7173 [2024-10-12 23:39:31,212 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 [2024-10-12 23:39:31,212 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 [2024-10-12 23:39:31,213 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] [2024-10-12 23:39:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7173 states. [2024-10-12 23:39:31,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7173 to 5322. [2024-10-12 23:39:31,289 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) [2024-10-12 23:39:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 7613 transitions. [2024-10-12 23:39:31,297 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 7613 transitions. Word has length 312 [2024-10-12 23:39:31,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:31,297 INFO L471 AbstractCegarLoop]: Abstraction has 5322 states and 7613 transitions. [2024-10-12 23:39:31,297 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) [2024-10-12 23:39:31,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 7613 transitions. [2024-10-12 23:39:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-12 23:39:31,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:31,303 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] [2024-10-12 23:39:31,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-12 23:39:31,304 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:31,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:31,304 INFO L85 PathProgramCache]: Analyzing trace with hash 279613153, now seen corresponding path program 1 times [2024-10-12 23:39:31,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:31,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619090827] [2024-10-12 23:39:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:31,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:31,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:31,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:31,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:31,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619090827] [2024-10-12 23:39:31,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619090827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:31,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:31,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:39:31,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317574795] [2024-10-12 23:39:31,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:31,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:39:31,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:31,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:39:31,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:39:31,632 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) [2024-10-12 23:39:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:31,688 INFO L93 Difference]: Finished difference Result 8617 states and 12394 transitions. [2024-10-12 23:39:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:39:31,689 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 [2024-10-12 23:39:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:31,696 INFO L225 Difference]: With dead ends: 8617 [2024-10-12 23:39:31,696 INFO L226 Difference]: Without dead ends: 5382 [2024-10-12 23:39:31,700 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 [2024-10-12 23:39:31,701 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 [2024-10-12 23:39:31,701 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] [2024-10-12 23:39:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5382 states. [2024-10-12 23:39:31,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5382 to 5367. [2024-10-12 23:39:31,758 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) [2024-10-12 23:39:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 7658 transitions. [2024-10-12 23:39:31,766 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 7658 transitions. Word has length 313 [2024-10-12 23:39:31,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:31,767 INFO L471 AbstractCegarLoop]: Abstraction has 5367 states and 7658 transitions. [2024-10-12 23:39:31,767 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) [2024-10-12 23:39:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 7658 transitions. [2024-10-12 23:39:31,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-12 23:39:31,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:31,773 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] [2024-10-12 23:39:31,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-12 23:39:31,774 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:31,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:31,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1144518715, now seen corresponding path program 1 times [2024-10-12 23:39:31,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:31,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209436675] [2024-10-12 23:39:31,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:31,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:32,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:32,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:32,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:32,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:32,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209436675] [2024-10-12 23:39:32,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209436675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:32,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:32,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:39:32,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234860557] [2024-10-12 23:39:32,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:32,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:39:32,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:32,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:39:32,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:32,182 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) [2024-10-12 23:39:32,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:32,230 INFO L93 Difference]: Finished difference Result 8827 states and 12649 transitions. [2024-10-12 23:39:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:32,230 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 [2024-10-12 23:39:32,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:32,235 INFO L225 Difference]: With dead ends: 8827 [2024-10-12 23:39:32,235 INFO L226 Difference]: Without dead ends: 5439 [2024-10-12 23:39:32,238 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 [2024-10-12 23:39:32,238 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 [2024-10-12 23:39:32,239 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] [2024-10-12 23:39:32,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2024-10-12 23:39:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5439. [2024-10-12 23:39:32,300 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) [2024-10-12 23:39:32,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 7730 transitions. [2024-10-12 23:39:32,308 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 7730 transitions. Word has length 313 [2024-10-12 23:39:32,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:32,308 INFO L471 AbstractCegarLoop]: Abstraction has 5439 states and 7730 transitions. [2024-10-12 23:39:32,309 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) [2024-10-12 23:39:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 7730 transitions. [2024-10-12 23:39:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-12 23:39:32,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:32,315 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] [2024-10-12 23:39:32,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-12 23:39:32,315 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:32,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:32,315 INFO L85 PathProgramCache]: Analyzing trace with hash 593163573, now seen corresponding path program 1 times [2024-10-12 23:39:32,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:32,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125247918] [2024-10-12 23:39:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:32,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:33,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:33,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 23:39:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:33,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:33,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125247918] [2024-10-12 23:39:33,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125247918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:33,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:33,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 23:39:33,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239473217] [2024-10-12 23:39:33,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:33,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 23:39:33,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:33,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 23:39:33,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-12 23:39:33,253 INFO L87 Difference]: Start difference. First operand 5439 states and 7730 transitions. Second operand has 9 states, 9 states have (on average 34.0) internal successors, (306), 9 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) [2024-10-12 23:39:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:33,827 INFO L93 Difference]: Finished difference Result 7687 states and 10987 transitions. [2024-10-12 23:39:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 23:39:33,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.0) internal successors, (306), 9 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 [2024-10-12 23:39:33,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:33,835 INFO L225 Difference]: With dead ends: 7687 [2024-10-12 23:39:33,835 INFO L226 Difference]: Without dead ends: 5881 [2024-10-12 23:39:33,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 23:39:33,838 INFO L432 NwaCegarLoop]: 1078 mSDtfsCounter, 2352 mSDsluCounter, 5624 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:33,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 6702 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 23:39:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2024-10-12 23:39:33,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5449. [2024-10-12 23:39:33,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5411 states have (on average 1.417482905193125) internal successors, (7670), 5411 states have internal predecessors, (7670), 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) [2024-10-12 23:39:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 7742 transitions. [2024-10-12 23:39:33,905 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 7742 transitions. Word has length 313 [2024-10-12 23:39:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:33,906 INFO L471 AbstractCegarLoop]: Abstraction has 5449 states and 7742 transitions. [2024-10-12 23:39:33,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.0) internal successors, (306), 9 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) [2024-10-12 23:39:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 7742 transitions. [2024-10-12 23:39:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-10-12 23:39:33,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:33,912 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, 1] [2024-10-12 23:39:33,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-12 23:39:33,912 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:33,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:33,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1367397674, now seen corresponding path program 1 times [2024-10-12 23:39:33,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:33,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180739973] [2024-10-12 23:39:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:33,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:34,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:34,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 23:39:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:34,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:34,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180739973] [2024-10-12 23:39:34,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180739973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:34,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:34,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:39:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210942639] [2024-10-12 23:39:34,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:34,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:39:34,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:39:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:34,379 INFO L87 Difference]: Start difference. First operand 5449 states and 7742 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2024-10-12 23:39:34,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:34,443 INFO L93 Difference]: Finished difference Result 7227 states and 10303 transitions. [2024-10-12 23:39:34,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:34,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 314 [2024-10-12 23:39:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:34,450 INFO L225 Difference]: With dead ends: 7227 [2024-10-12 23:39:34,450 INFO L226 Difference]: Without dead ends: 5459 [2024-10-12 23:39:34,454 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 [2024-10-12 23:39:34,454 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 0 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:34,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3567 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:39:34,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5459 states. [2024-10-12 23:39:34,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5459 to 5459. [2024-10-12 23:39:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5421 states have (on average 1.4170817192399927) internal successors, (7682), 5421 states have internal predecessors, (7682), 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) [2024-10-12 23:39:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 7754 transitions. [2024-10-12 23:39:34,524 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 7754 transitions. Word has length 314 [2024-10-12 23:39:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:34,524 INFO L471 AbstractCegarLoop]: Abstraction has 5459 states and 7754 transitions. [2024-10-12 23:39:34,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2024-10-12 23:39:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 7754 transitions. [2024-10-12 23:39:34,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-10-12 23:39:34,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:34,530 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, 1] [2024-10-12 23:39:34,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-12 23:39:34,531 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:34,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1847360114, now seen corresponding path program 1 times [2024-10-12 23:39:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:34,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955784240] [2024-10-12 23:39:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:34,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:35,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:35,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 23:39:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:35,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:35,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955784240] [2024-10-12 23:39:35,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955784240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:35,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:35,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:35,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430855137] [2024-10-12 23:39:35,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:35,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:35,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:35,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:35,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:35,038 INFO L87 Difference]: Start difference. First operand 5459 states and 7754 transitions. Second operand has 6 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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) [2024-10-12 23:39:35,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:35,171 INFO L93 Difference]: Finished difference Result 7605 states and 10863 transitions. [2024-10-12 23:39:35,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:35,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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 314 [2024-10-12 23:39:35,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:35,180 INFO L225 Difference]: With dead ends: 7605 [2024-10-12 23:39:35,180 INFO L226 Difference]: Without dead ends: 5831 [2024-10-12 23:39:35,184 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 [2024-10-12 23:39:35,186 INFO L432 NwaCegarLoop]: 1163 mSDtfsCounter, 594 mSDsluCounter, 4651 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:35,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 5814 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 23:39:35,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2024-10-12 23:39:35,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5481. [2024-10-12 23:39:35,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5481 states, 5443 states have (on average 1.416498254638986) internal successors, (7710), 5443 states have internal predecessors, (7710), 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) [2024-10-12 23:39:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5481 states to 5481 states and 7782 transitions. [2024-10-12 23:39:35,251 INFO L78 Accepts]: Start accepts. Automaton has 5481 states and 7782 transitions. Word has length 314 [2024-10-12 23:39:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:35,251 INFO L471 AbstractCegarLoop]: Abstraction has 5481 states and 7782 transitions. [2024-10-12 23:39:35,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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) [2024-10-12 23:39:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5481 states and 7782 transitions. [2024-10-12 23:39:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-10-12 23:39:35,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:35,257 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, 1] [2024-10-12 23:39:35,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-12 23:39:35,257 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:35,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1274636534, now seen corresponding path program 1 times [2024-10-12 23:39:35,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:35,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681654393] [2024-10-12 23:39:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:35,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:36,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:36,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 23:39:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:36,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:36,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681654393] [2024-10-12 23:39:36,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681654393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:36,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:36,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 23:39:36,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629439455] [2024-10-12 23:39:36,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:36,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 23:39:36,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:36,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 23:39:36,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-12 23:39:36,140 INFO L87 Difference]: Start difference. First operand 5481 states and 7782 transitions. Second operand has 9 states, 9 states have (on average 34.111111111111114) internal successors, (307), 9 states have internal predecessors, (307), 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) [2024-10-12 23:39:36,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:36,564 INFO L93 Difference]: Finished difference Result 8515 states and 12167 transitions. [2024-10-12 23:39:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 23:39:36,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.111111111111114) internal successors, (307), 9 states have internal predecessors, (307), 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 314 [2024-10-12 23:39:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:36,570 INFO L225 Difference]: With dead ends: 8515 [2024-10-12 23:39:36,570 INFO L226 Difference]: Without dead ends: 5535 [2024-10-12 23:39:36,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 23:39:36,573 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 2338 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:36,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 5537 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 23:39:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5535 states. [2024-10-12 23:39:36,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5535 to 4614. [2024-10-12 23:39:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 4585 states have (on average 1.4244274809160304) internal successors, (6531), 4585 states have internal predecessors, (6531), 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) [2024-10-12 23:39:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 6585 transitions. [2024-10-12 23:39:36,620 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 6585 transitions. Word has length 314 [2024-10-12 23:39:36,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:36,620 INFO L471 AbstractCegarLoop]: Abstraction has 4614 states and 6585 transitions. [2024-10-12 23:39:36,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.111111111111114) internal successors, (307), 9 states have internal predecessors, (307), 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) [2024-10-12 23:39:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 6585 transitions. [2024-10-12 23:39:36,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-10-12 23:39:36,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:36,624 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, 1, 1] [2024-10-12 23:39:36,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-12 23:39:36,625 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:36,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:36,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1926052896, now seen corresponding path program 1 times [2024-10-12 23:39:36,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:36,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622126099] [2024-10-12 23:39:36,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:36,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:37,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:37,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:37,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:37,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622126099] [2024-10-12 23:39:37,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622126099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:37,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:37,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:37,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521712438] [2024-10-12 23:39:37,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:37,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:37,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:37,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:37,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:37,280 INFO L87 Difference]: Start difference. First operand 4614 states and 6585 transitions. Second operand has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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) [2024-10-12 23:39:37,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:37,607 INFO L93 Difference]: Finished difference Result 6519 states and 9367 transitions. [2024-10-12 23:39:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 23:39:37,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 315 [2024-10-12 23:39:37,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:37,612 INFO L225 Difference]: With dead ends: 6519 [2024-10-12 23:39:37,612 INFO L226 Difference]: Without dead ends: 5036 [2024-10-12 23:39:37,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 23:39:37,614 INFO L432 NwaCegarLoop]: 1089 mSDtfsCounter, 2021 mSDsluCounter, 4313 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2023 SdHoareTripleChecker+Valid, 5402 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:37,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2023 Valid, 5402 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 23:39:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5036 states. [2024-10-12 23:39:37,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5036 to 4664. [2024-10-12 23:39:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4664 states, 4635 states have (on average 1.4241639697950377) internal successors, (6601), 4635 states have internal predecessors, (6601), 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) [2024-10-12 23:39:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 6655 transitions. [2024-10-12 23:39:37,659 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 6655 transitions. Word has length 315 [2024-10-12 23:39:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:37,659 INFO L471 AbstractCegarLoop]: Abstraction has 4664 states and 6655 transitions. [2024-10-12 23:39:37,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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) [2024-10-12 23:39:37,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 6655 transitions. [2024-10-12 23:39:37,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-10-12 23:39:37,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:37,664 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, 1, 1, 1] [2024-10-12 23:39:37,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-12 23:39:37,664 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:37,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash 312788838, now seen corresponding path program 1 times [2024-10-12 23:39:37,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:37,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741552136] [2024-10-12 23:39:37,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:37,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:38,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:38,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:38,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:38,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741552136] [2024-10-12 23:39:38,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741552136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:38,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:38,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:39:38,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765132350] [2024-10-12 23:39:38,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:38,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:39:38,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:38,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:39:38,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:39:38,008 INFO L87 Difference]: Start difference. First operand 4664 states and 6655 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 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) [2024-10-12 23:39:38,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:38,084 INFO L93 Difference]: Finished difference Result 6159 states and 8825 transitions. [2024-10-12 23:39:38,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:39:38,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 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 316 [2024-10-12 23:39:38,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:38,090 INFO L225 Difference]: With dead ends: 6159 [2024-10-12 23:39:38,090 INFO L226 Difference]: Without dead ends: 4676 [2024-10-12 23:39:38,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:39:38,093 INFO L432 NwaCegarLoop]: 1187 mSDtfsCounter, 2 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4741 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:38,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4741 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:39:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4676 states. [2024-10-12 23:39:38,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4676 to 4674. [2024-10-12 23:39:38,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4674 states, 4645 states have (on average 1.423681377825619) internal successors, (6613), 4645 states have internal predecessors, (6613), 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) [2024-10-12 23:39:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4674 states to 4674 states and 6667 transitions. [2024-10-12 23:39:38,141 INFO L78 Accepts]: Start accepts. Automaton has 4674 states and 6667 transitions. Word has length 316 [2024-10-12 23:39:38,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:38,141 INFO L471 AbstractCegarLoop]: Abstraction has 4674 states and 6667 transitions. [2024-10-12 23:39:38,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 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) [2024-10-12 23:39:38,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4674 states and 6667 transitions. [2024-10-12 23:39:38,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-10-12 23:39:38,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:38,145 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, 1, 1, 1, 1] [2024-10-12 23:39:38,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-12 23:39:38,146 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:38,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:38,146 INFO L85 PathProgramCache]: Analyzing trace with hash 723932877, now seen corresponding path program 1 times [2024-10-12 23:39:38,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:38,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153872106] [2024-10-12 23:39:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:38,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:38,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 23:39:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:38,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 23:39:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:38,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:38,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153872106] [2024-10-12 23:39:38,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153872106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:38,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:38,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 23:39:38,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507462434] [2024-10-12 23:39:38,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:38,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 23:39:38,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:38,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 23:39:38,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:38,623 INFO L87 Difference]: Start difference. First operand 4674 states and 6667 transitions. Second operand has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 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) [2024-10-12 23:39:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:38,747 INFO L93 Difference]: Finished difference Result 6515 states and 9355 transitions. [2024-10-12 23:39:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 23:39:38,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 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 317 [2024-10-12 23:39:38,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:38,754 INFO L225 Difference]: With dead ends: 6515 [2024-10-12 23:39:38,754 INFO L226 Difference]: Without dead ends: 5026 [2024-10-12 23:39:38,757 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 [2024-10-12 23:39:38,757 INFO L432 NwaCegarLoop]: 1163 mSDtfsCounter, 586 mSDsluCounter, 4651 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:38,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 5814 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 23:39:38,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2024-10-12 23:39:38,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 4692. [2024-10-12 23:39:38,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4663 states have (on average 1.4233326184859532) internal successors, (6637), 4663 states have internal predecessors, (6637), 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) [2024-10-12 23:39:38,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 6691 transitions. [2024-10-12 23:39:38,813 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 6691 transitions. Word has length 317 [2024-10-12 23:39:38,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:38,813 INFO L471 AbstractCegarLoop]: Abstraction has 4692 states and 6691 transitions. [2024-10-12 23:39:38,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 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) [2024-10-12 23:39:38,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 6691 transitions. [2024-10-12 23:39:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-10-12 23:39:38,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:38,819 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, 1, 1, 1, 1] [2024-10-12 23:39:38,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-10-12 23:39:38,820 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:38,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:38,820 INFO L85 PathProgramCache]: Analyzing trace with hash 201858695, now seen corresponding path program 1 times [2024-10-12 23:39:38,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:38,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870866042] [2024-10-12 23:39:38,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:38,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:39,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 23:39:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:39,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 23:39:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:39,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 23:39:39,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:39,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870866042] [2024-10-12 23:39:39,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870866042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:39,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:39,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 23:39:39,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191278538] [2024-10-12 23:39:39,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:39,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 23:39:39,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:39,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 23:39:39,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 23:39:39,572 INFO L87 Difference]: Start difference. First operand 4692 states and 6691 transitions. Second operand has 7 states, 7 states have (on average 44.285714285714285) internal successors, (310), 7 states have internal predecessors, (310), 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) [2024-10-12 23:39:39,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:39,919 INFO L93 Difference]: Finished difference Result 6559 states and 9415 transitions. [2024-10-12 23:39:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 23:39:39,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.285714285714285) internal successors, (310), 7 states have internal predecessors, (310), 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 317 [2024-10-12 23:39:39,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:39,924 INFO L225 Difference]: With dead ends: 6559 [2024-10-12 23:39:39,924 INFO L226 Difference]: Without dead ends: 5070 [2024-10-12 23:39:39,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 23:39:39,926 INFO L432 NwaCegarLoop]: 1089 mSDtfsCounter, 2294 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:39,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 4605 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 23:39:39,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5070 states. [2024-10-12 23:39:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5070 to 4718. [2024-10-12 23:39:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4718 states, 4689 states have (on average 1.4222648752399232) internal successors, (6669), 4689 states have internal predecessors, (6669), 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) [2024-10-12 23:39:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4718 states to 4718 states and 6723 transitions. [2024-10-12 23:39:39,974 INFO L78 Accepts]: Start accepts. Automaton has 4718 states and 6723 transitions. Word has length 317 [2024-10-12 23:39:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:39,974 INFO L471 AbstractCegarLoop]: Abstraction has 4718 states and 6723 transitions. [2024-10-12 23:39:39,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.285714285714285) internal successors, (310), 7 states have internal predecessors, (310), 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) [2024-10-12 23:39:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4718 states and 6723 transitions. [2024-10-12 23:39:39,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-10-12 23:39:39,978 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:39,978 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, 1, 1, 1, 1, 1] [2024-10-12 23:39:39,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-10-12 23:39:39,979 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:39,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:39,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1778497105, now seen corresponding path program 1 times [2024-10-12 23:39:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:39,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108509090] [2024-10-12 23:39:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat