/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d32_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 13:20:56,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 13:20:56,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-25 13:20:56,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 13:20:56,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 13:20:56,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 13:20:56,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 13:20:56,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 13:20:56,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 13:20:56,772 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 13:20:56,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 13:20:56,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 13:20:56,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 13:20:56,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 13:20:56,774 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 13:20:56,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 13:20:56,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 13:20:56,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-25 13:20:56,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 13:20:56,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 13:20:56,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 13:20:56,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 13:20:56,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 13:20:56,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 13:20:56,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 13:20:56,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 13:20:56,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 13:20:56,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 13:20:56,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 13:20:56,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 13:20:56,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 13:20:56,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 13:20:56,780 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-25 13:20:56,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 13:20:56,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 13:20:56,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 13:20:56,969 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 13:20:56,971 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 13:20:56,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d32_e0.c [2023-12-25 13:20:57,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 13:20:58,320 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 13:20:58,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d32_e0.c [2023-12-25 13:20:58,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a95aedc75/2f642bb7cbc9458dbef5e33de74e5ed8/FLAGb9211341c [2023-12-25 13:20:58,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a95aedc75/2f642bb7cbc9458dbef5e33de74e5ed8 [2023-12-25 13:20:58,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 13:20:58,354 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 13:20:58,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 13:20:58,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 13:20:58,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 13:20:58,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 01:20:58" (1/1) ... [2023-12-25 13:20:58,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ede303d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:58, skipping insertion in model container [2023-12-25 13:20:58,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 01:20:58" (1/1) ... [2023-12-25 13:20:58,421 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 13:20:58,582 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d32_e0.c[1271,1284] [2023-12-25 13:20:58,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 13:20:58,903 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 13:20:58,919 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d32_e0.c[1271,1284] [2023-12-25 13:20:59,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 13:20:59,146 INFO L206 MainTranslator]: Completed translation [2023-12-25 13:20:59,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59 WrapperNode [2023-12-25 13:20:59,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 13:20:59,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 13:20:59,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 13:20:59,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 13:20:59,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:20:59,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:20:59,634 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6783 [2023-12-25 13:20:59,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 13:20:59,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 13:20:59,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 13:20:59,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 13:20:59,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:20:59,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:20:59,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,019 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]. [2023-12-25 13:21:00,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 13:21:00,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 13:21:00,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 13:21:00,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 13:21:00,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (1/1) ... [2023-12-25 13:21:00,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 13:21:00,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:21:00,461 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) [2023-12-25 13:21:00,474 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 [2023-12-25 13:21:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 13:21:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-25 13:21:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-25 13:21:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-25 13:21:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 13:21:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 13:21:00,845 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 13:21:00,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 13:21:03,313 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 13:21:03,387 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 13:21:03,387 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 13:21:03,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 01:21:03 BoogieIcfgContainer [2023-12-25 13:21:03,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 13:21:03,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 13:21:03,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 13:21:03,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 13:21:03,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 01:20:58" (1/3) ... [2023-12-25 13:21:03,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e777945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 01:21:03, skipping insertion in model container [2023-12-25 13:21:03,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 01:20:59" (2/3) ... [2023-12-25 13:21:03,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e777945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 01:21:03, skipping insertion in model container [2023-12-25 13:21:03,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 01:21:03" (3/3) ... [2023-12-25 13:21:03,393 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d32_e0.c [2023-12-25 13:21:03,403 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 13:21:03,403 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 13:21:03,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 13:21:03,445 INFO L357 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, mHoare=true, 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;@663127b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 13:21:03,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 13:21:03,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 1259 states, 1249 states have (on average 1.6621297037630105) internal successors, (2076), 1250 states have internal predecessors, (2076), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2023-12-25 13:21:03,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:03,470 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:03,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:03,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:03,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1013132967, now seen corresponding path program 1 times [2023-12-25 13:21:03,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:03,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957083258] [2023-12-25 13:21:03,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:03,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:03,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957083258] [2023-12-25 13:21:03,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957083258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:03,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:03,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 13:21:03,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192186112] [2023-12-25 13:21:03,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:03,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 13:21:03,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:04,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 13:21:04,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 13:21:04,007 INFO L87 Difference]: Start difference. First operand has 1259 states, 1249 states have (on average 1.6621297037630105) internal successors, (2076), 1250 states have internal predecessors, (2076), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 219.0) internal successors, (438), 2 states have internal predecessors, (438), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:04,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:04,086 INFO L93 Difference]: Finished difference Result 2284 states and 3800 transitions. [2023-12-25 13:21:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 13:21:04,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 219.0) internal successors, (438), 2 states have internal predecessors, (438), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 470 [2023-12-25 13:21:04,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:04,112 INFO L225 Difference]: With dead ends: 2284 [2023-12-25 13:21:04,112 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:04,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 13:21:04,126 INFO L413 NwaCegarLoop]: 2084 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, 2084 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 [2023-12-25 13:21:04,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2084 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:21:04,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6594551282051282) internal successors, (2071), 1248 states have internal predecessors, (2071), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2085 transitions. [2023-12-25 13:21:04,192 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2085 transitions. Word has length 470 [2023-12-25 13:21:04,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:04,193 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2085 transitions. [2023-12-25 13:21:04,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 219.0) internal successors, (438), 2 states have internal predecessors, (438), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2085 transitions. [2023-12-25 13:21:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2023-12-25 13:21:04,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:04,199 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:04,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-25 13:21:04,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:04,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1260380505, now seen corresponding path program 1 times [2023-12-25 13:21:04,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:04,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559142510] [2023-12-25 13:21:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:04,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:06,006 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:06,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:06,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559142510] [2023-12-25 13:21:06,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559142510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:06,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:06,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:06,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083106784] [2023-12-25 13:21:06,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:06,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:06,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:06,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:06,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:06,014 INFO L87 Difference]: Start difference. First operand 1257 states and 2085 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:06,190 INFO L93 Difference]: Finished difference Result 2282 states and 3784 transitions. [2023-12-25 13:21:06,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:06,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 470 [2023-12-25 13:21:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:06,196 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:06,196 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:06,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:06,200 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 1732 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:06,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 4018 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:06,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:06,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6586538461538463) internal successors, (2070), 1248 states have internal predecessors, (2070), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:06,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2084 transitions. [2023-12-25 13:21:06,228 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2084 transitions. Word has length 470 [2023-12-25 13:21:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:06,230 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2084 transitions. [2023-12-25 13:21:06,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2084 transitions. [2023-12-25 13:21:06,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-12-25 13:21:06,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:06,234 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:06,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-25 13:21:06,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:06,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:06,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1127600941, now seen corresponding path program 1 times [2023-12-25 13:21:06,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:06,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396701907] [2023-12-25 13:21:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:06,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:07,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:07,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396701907] [2023-12-25 13:21:07,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396701907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:07,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:07,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:07,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595446742] [2023-12-25 13:21:07,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:07,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:07,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:07,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:07,307 INFO L87 Difference]: Start difference. First operand 1257 states and 2084 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:07,503 INFO L93 Difference]: Finished difference Result 2420 states and 4009 transitions. [2023-12-25 13:21:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:21:07,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 471 [2023-12-25 13:21:07,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:07,509 INFO L225 Difference]: With dead ends: 2420 [2023-12-25 13:21:07,510 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:07,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:21:07,515 INFO L413 NwaCegarLoop]: 2070 mSDtfsCounter, 2176 mSDsluCounter, 4087 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 6157 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:07,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 6157 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:07,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.657852564102564) internal successors, (2069), 1248 states have internal predecessors, (2069), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2083 transitions. [2023-12-25 13:21:07,548 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2083 transitions. Word has length 471 [2023-12-25 13:21:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:07,548 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2083 transitions. [2023-12-25 13:21:07,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2083 transitions. [2023-12-25 13:21:07,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2023-12-25 13:21:07,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:07,565 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:07,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-25 13:21:07,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:07,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash -415109959, now seen corresponding path program 1 times [2023-12-25 13:21:07,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:07,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312012801] [2023-12-25 13:21:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:07,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:08,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:08,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312012801] [2023-12-25 13:21:08,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312012801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:08,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:08,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:08,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182861351] [2023-12-25 13:21:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:08,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:08,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:08,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:08,214 INFO L87 Difference]: Start difference. First operand 1257 states and 2083 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:08,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:08,397 INFO L93 Difference]: Finished difference Result 2282 states and 3780 transitions. [2023-12-25 13:21:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:08,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 472 [2023-12-25 13:21:08,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:08,402 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:08,402 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:08,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:08,407 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 2065 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:08,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 4028 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:08,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6570512820512822) internal successors, (2068), 1248 states have internal predecessors, (2068), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2082 transitions. [2023-12-25 13:21:08,429 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2082 transitions. Word has length 472 [2023-12-25 13:21:08,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:08,429 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2082 transitions. [2023-12-25 13:21:08,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:08,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2082 transitions. [2023-12-25 13:21:08,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-25 13:21:08,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:08,433 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:08,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-25 13:21:08,433 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:08,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1885463277, now seen corresponding path program 1 times [2023-12-25 13:21:08,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:08,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961474875] [2023-12-25 13:21:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:08,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,027 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:09,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:09,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961474875] [2023-12-25 13:21:09,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961474875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:09,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:09,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:09,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370221965] [2023-12-25 13:21:09,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:09,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:09,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:09,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:09,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:09,029 INFO L87 Difference]: Start difference. First operand 1257 states and 2082 transitions. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:09,213 INFO L93 Difference]: Finished difference Result 2282 states and 3778 transitions. [2023-12-25 13:21:09,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:09,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 473 [2023-12-25 13:21:09,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:09,217 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:09,217 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:09,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:09,219 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 3877 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:09,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3884 Valid, 4018 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.65625) internal successors, (2067), 1248 states have internal predecessors, (2067), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2081 transitions. [2023-12-25 13:21:09,238 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2081 transitions. Word has length 473 [2023-12-25 13:21:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:09,238 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2081 transitions. [2023-12-25 13:21:09,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:09,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2081 transitions. [2023-12-25 13:21:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2023-12-25 13:21:09,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:09,241 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:09,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-25 13:21:09,241 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:09,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:09,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1287909855, now seen corresponding path program 1 times [2023-12-25 13:21:09,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:09,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776605624] [2023-12-25 13:21:09,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:09,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:09,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:09,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776605624] [2023-12-25 13:21:09,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776605624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:09,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:09,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:09,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936133997] [2023-12-25 13:21:09,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:09,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:09,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:09,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:09,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:09,798 INFO L87 Difference]: Start difference. First operand 1257 states and 2081 transitions. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:09,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:09,950 INFO L93 Difference]: Finished difference Result 2282 states and 3776 transitions. [2023-12-25 13:21:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:09,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 474 [2023-12-25 13:21:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:09,955 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:09,955 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:09,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:09,958 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 2057 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:09,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 4028 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:09,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:09,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6554487179487178) internal successors, (2066), 1248 states have internal predecessors, (2066), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2080 transitions. [2023-12-25 13:21:09,977 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2080 transitions. Word has length 474 [2023-12-25 13:21:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:09,978 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2080 transitions. [2023-12-25 13:21:09,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2080 transitions. [2023-12-25 13:21:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2023-12-25 13:21:09,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:09,981 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:09,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-25 13:21:09,981 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:09,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash 817230329, now seen corresponding path program 1 times [2023-12-25 13:21:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:09,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363267198] [2023-12-25 13:21:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:09,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:10,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363267198] [2023-12-25 13:21:10,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363267198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:10,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:10,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:10,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618563828] [2023-12-25 13:21:10,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:10,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:10,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:10,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:10,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:10,626 INFO L87 Difference]: Start difference. First operand 1257 states and 2080 transitions. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:10,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:10,776 INFO L93 Difference]: Finished difference Result 2282 states and 3774 transitions. [2023-12-25 13:21:10,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:10,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 475 [2023-12-25 13:21:10,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:10,780 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:10,780 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:10,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:10,781 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 3689 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:10,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 4018 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:10,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.654647435897436) internal successors, (2065), 1248 states have internal predecessors, (2065), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:10,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2079 transitions. [2023-12-25 13:21:10,798 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2079 transitions. Word has length 475 [2023-12-25 13:21:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:10,798 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2079 transitions. [2023-12-25 13:21:10,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2079 transitions. [2023-12-25 13:21:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-12-25 13:21:10,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:10,801 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:10,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-25 13:21:10,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:10,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash 873592743, now seen corresponding path program 1 times [2023-12-25 13:21:10,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:10,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951452799] [2023-12-25 13:21:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:10,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:11,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:11,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951452799] [2023-12-25 13:21:11,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951452799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:11,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:11,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:11,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988815823] [2023-12-25 13:21:11,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:11,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:11,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:11,473 INFO L87 Difference]: Start difference. First operand 1257 states and 2079 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:11,616 INFO L93 Difference]: Finished difference Result 2282 states and 3772 transitions. [2023-12-25 13:21:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:11,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 476 [2023-12-25 13:21:11,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:11,620 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:11,620 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:11,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:11,622 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 3675 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3682 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:11,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3682 Valid, 4018 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:11,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:11,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6538461538461537) internal successors, (2064), 1248 states have internal predecessors, (2064), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2078 transitions. [2023-12-25 13:21:11,638 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2078 transitions. Word has length 476 [2023-12-25 13:21:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:11,638 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2078 transitions. [2023-12-25 13:21:11,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2078 transitions. [2023-12-25 13:21:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-12-25 13:21:11,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:11,641 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:11,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-25 13:21:11,641 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:11,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:11,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1933541753, now seen corresponding path program 1 times [2023-12-25 13:21:11,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:11,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106475721] [2023-12-25 13:21:11,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:11,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:12,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106475721] [2023-12-25 13:21:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106475721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:12,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:12,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:12,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736269112] [2023-12-25 13:21:12,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:12,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:12,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:12,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:12,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:12,230 INFO L87 Difference]: Start difference. First operand 1257 states and 2078 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:12,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:12,378 INFO L93 Difference]: Finished difference Result 2282 states and 3770 transitions. [2023-12-25 13:21:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:12,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 477 [2023-12-25 13:21:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:12,383 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:12,383 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:12,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:12,386 INFO L413 NwaCegarLoop]: 2008 mSDtfsCounter, 1956 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:12,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 4028 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:12,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:12,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6530448717948718) internal successors, (2063), 1248 states have internal predecessors, (2063), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:12,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2077 transitions. [2023-12-25 13:21:12,403 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2077 transitions. Word has length 477 [2023-12-25 13:21:12,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:12,404 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2077 transitions. [2023-12-25 13:21:12,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2077 transitions. [2023-12-25 13:21:12,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-12-25 13:21:12,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:12,408 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:12,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-25 13:21:12,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:12,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:12,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2142168255, now seen corresponding path program 1 times [2023-12-25 13:21:12,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:12,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075743898] [2023-12-25 13:21:12,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:12,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:13,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:13,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075743898] [2023-12-25 13:21:13,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075743898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:13,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:13,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:13,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485556406] [2023-12-25 13:21:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:13,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:13,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:13,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:13,305 INFO L87 Difference]: Start difference. First operand 1257 states and 2077 transitions. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:13,601 INFO L93 Difference]: Finished difference Result 2282 states and 3768 transitions. [2023-12-25 13:21:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:13,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 478 [2023-12-25 13:21:13,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:13,605 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:13,605 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:13,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:13,607 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 1794 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:13,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 3874 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 13:21:13,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:13,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6522435897435896) internal successors, (2062), 1248 states have internal predecessors, (2062), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:13,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2076 transitions. [2023-12-25 13:21:13,628 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2076 transitions. Word has length 478 [2023-12-25 13:21:13,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:13,628 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2076 transitions. [2023-12-25 13:21:13,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2076 transitions. [2023-12-25 13:21:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2023-12-25 13:21:13,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:13,632 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:13,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-25 13:21:13,632 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:13,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:13,633 INFO L85 PathProgramCache]: Analyzing trace with hash -845308117, now seen corresponding path program 1 times [2023-12-25 13:21:13,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:13,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974899538] [2023-12-25 13:21:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:13,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:14,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:14,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974899538] [2023-12-25 13:21:14,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974899538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:14,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:14,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:14,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697773693] [2023-12-25 13:21:14,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:14,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:14,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:14,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:14,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:14,228 INFO L87 Difference]: Start difference. First operand 1257 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:14,428 INFO L93 Difference]: Finished difference Result 2296 states and 3786 transitions. [2023-12-25 13:21:14,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:21:14,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 479 [2023-12-25 13:21:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:14,431 INFO L225 Difference]: With dead ends: 2296 [2023-12-25 13:21:14,431 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:14,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:21:14,433 INFO L413 NwaCegarLoop]: 2061 mSDtfsCounter, 1822 mSDsluCounter, 4006 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:14,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 6067 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6514423076923077) internal successors, (2061), 1248 states have internal predecessors, (2061), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:14,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2075 transitions. [2023-12-25 13:21:14,447 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2075 transitions. Word has length 479 [2023-12-25 13:21:14,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:14,447 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2075 transitions. [2023-12-25 13:21:14,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:14,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2075 transitions. [2023-12-25 13:21:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2023-12-25 13:21:14,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:14,450 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:14,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-25 13:21:14,450 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:14,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:14,451 INFO L85 PathProgramCache]: Analyzing trace with hash 390437175, now seen corresponding path program 1 times [2023-12-25 13:21:14,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:14,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361911936] [2023-12-25 13:21:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:14,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:14,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:15,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:15,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361911936] [2023-12-25 13:21:15,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361911936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:15,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:15,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:15,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349023778] [2023-12-25 13:21:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:15,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:15,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:15,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:15,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:15,006 INFO L87 Difference]: Start difference. First operand 1257 states and 2075 transitions. Second operand has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:15,279 INFO L93 Difference]: Finished difference Result 2282 states and 3764 transitions. [2023-12-25 13:21:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:15,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 480 [2023-12-25 13:21:15,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:15,283 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:15,283 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:15,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:15,284 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3857 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:15,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 3874 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6506410256410255) internal successors, (2060), 1248 states have internal predecessors, (2060), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2074 transitions. [2023-12-25 13:21:15,300 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2074 transitions. Word has length 480 [2023-12-25 13:21:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:15,300 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2074 transitions. [2023-12-25 13:21:15,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2074 transitions. [2023-12-25 13:21:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2023-12-25 13:21:15,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:15,303 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:15,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-25 13:21:15,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:15,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash -17163247, now seen corresponding path program 1 times [2023-12-25 13:21:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:15,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048597713] [2023-12-25 13:21:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:15,817 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:15,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048597713] [2023-12-25 13:21:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048597713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:15,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882276418] [2023-12-25 13:21:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:15,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:15,819 INFO L87 Difference]: Start difference. First operand 1257 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:16,046 INFO L93 Difference]: Finished difference Result 2282 states and 3762 transitions. [2023-12-25 13:21:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:16,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 481 [2023-12-25 13:21:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:16,049 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:16,049 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:16,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:16,051 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 2053 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:16,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 3884 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:16,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6498397435897436) internal successors, (2059), 1248 states have internal predecessors, (2059), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2073 transitions. [2023-12-25 13:21:16,065 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2073 transitions. Word has length 481 [2023-12-25 13:21:16,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:16,065 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2073 transitions. [2023-12-25 13:21:16,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2073 transitions. [2023-12-25 13:21:16,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2023-12-25 13:21:16,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:16,068 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:16,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-25 13:21:16,068 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:16,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:16,069 INFO L85 PathProgramCache]: Analyzing trace with hash -822685347, now seen corresponding path program 1 times [2023-12-25 13:21:16,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:16,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032697519] [2023-12-25 13:21:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:16,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:16,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:16,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032697519] [2023-12-25 13:21:16,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032697519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:16,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:16,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:16,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641972174] [2023-12-25 13:21:16,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:16,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:16,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:16,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:16,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:16,609 INFO L87 Difference]: Start difference. First operand 1257 states and 2073 transitions. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:16,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:16,831 INFO L93 Difference]: Finished difference Result 2282 states and 3760 transitions. [2023-12-25 13:21:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:16,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 482 [2023-12-25 13:21:16,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:16,835 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:16,835 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:16,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:16,836 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3841 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3848 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:16,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3848 Valid, 3874 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:16,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:16,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6490384615384615) internal successors, (2058), 1248 states have internal predecessors, (2058), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2072 transitions. [2023-12-25 13:21:16,850 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2072 transitions. Word has length 482 [2023-12-25 13:21:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:16,850 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2072 transitions. [2023-12-25 13:21:16,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2072 transitions. [2023-12-25 13:21:16,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2023-12-25 13:21:16,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:16,853 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:16,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-25 13:21:16,853 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:16,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1678793737, now seen corresponding path program 1 times [2023-12-25 13:21:16,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:16,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845159333] [2023-12-25 13:21:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:17,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:17,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845159333] [2023-12-25 13:21:17,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845159333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:17,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:17,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:17,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12033884] [2023-12-25 13:21:17,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:17,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:17,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:17,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:17,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:17,415 INFO L87 Difference]: Start difference. First operand 1257 states and 2072 transitions. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:17,628 INFO L93 Difference]: Finished difference Result 2282 states and 3758 transitions. [2023-12-25 13:21:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 483 [2023-12-25 13:21:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:17,632 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:17,632 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:17,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:17,634 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 2045 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:17,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 3884 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:17,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:17,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:17,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6482371794871795) internal successors, (2057), 1248 states have internal predecessors, (2057), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:17,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2071 transitions. [2023-12-25 13:21:17,648 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2071 transitions. Word has length 483 [2023-12-25 13:21:17,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:17,648 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2071 transitions. [2023-12-25 13:21:17,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2071 transitions. [2023-12-25 13:21:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2023-12-25 13:21:17,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:17,651 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:17,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-25 13:21:17,651 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:17,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:17,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1514169475, now seen corresponding path program 1 times [2023-12-25 13:21:17,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:17,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248514708] [2023-12-25 13:21:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:17,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:18,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:18,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248514708] [2023-12-25 13:21:18,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248514708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:18,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:18,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:18,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676197514] [2023-12-25 13:21:18,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:18,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:18,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:18,208 INFO L87 Difference]: Start difference. First operand 1257 states and 2071 transitions. Second operand has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:18,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:18,434 INFO L93 Difference]: Finished difference Result 2282 states and 3756 transitions. [2023-12-25 13:21:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:18,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 484 [2023-12-25 13:21:18,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:18,437 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:18,437 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:18,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:18,439 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 2041 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:18,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 3884 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:18,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:18,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:18,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6474358974358974) internal successors, (2056), 1248 states have internal predecessors, (2056), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2070 transitions. [2023-12-25 13:21:18,455 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2070 transitions. Word has length 484 [2023-12-25 13:21:18,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:18,456 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2070 transitions. [2023-12-25 13:21:18,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2070 transitions. [2023-12-25 13:21:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2023-12-25 13:21:18,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:18,459 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:18,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-25 13:21:18,459 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:18,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:18,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1420932829, now seen corresponding path program 1 times [2023-12-25 13:21:18,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:18,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923643516] [2023-12-25 13:21:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:18,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,030 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:19,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:19,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923643516] [2023-12-25 13:21:19,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923643516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:19,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:19,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:19,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513971110] [2023-12-25 13:21:19,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:19,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:19,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:19,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:19,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:19,033 INFO L87 Difference]: Start difference. First operand 1257 states and 2070 transitions. Second operand has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:19,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:19,263 INFO L93 Difference]: Finished difference Result 2282 states and 3754 transitions. [2023-12-25 13:21:19,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:19,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 485 [2023-12-25 13:21:19,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:19,266 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:19,266 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:19,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:19,268 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 2037 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:19,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 3884 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:19,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6466346153846154) internal successors, (2055), 1248 states have internal predecessors, (2055), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:19,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2069 transitions. [2023-12-25 13:21:19,282 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2069 transitions. Word has length 485 [2023-12-25 13:21:19,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:19,282 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2069 transitions. [2023-12-25 13:21:19,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:19,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2069 transitions. [2023-12-25 13:21:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-25 13:21:19,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:19,285 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:19,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-25 13:21:19,285 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:19,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:19,286 INFO L85 PathProgramCache]: Analyzing trace with hash -195964247, now seen corresponding path program 1 times [2023-12-25 13:21:19,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:19,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410145375] [2023-12-25 13:21:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:19,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:19,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410145375] [2023-12-25 13:21:19,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410145375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:19,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:19,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288891086] [2023-12-25 13:21:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:19,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:19,836 INFO L87 Difference]: Start difference. First operand 1257 states and 2069 transitions. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:20,063 INFO L93 Difference]: Finished difference Result 2282 states and 3752 transitions. [2023-12-25 13:21:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 486 [2023-12-25 13:21:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:20,067 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:20,067 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:20,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:20,068 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3639 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:20,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 3874 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:20,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:20,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:20,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6458333333333333) internal successors, (2054), 1248 states have internal predecessors, (2054), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:20,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2068 transitions. [2023-12-25 13:21:20,082 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2068 transitions. Word has length 486 [2023-12-25 13:21:20,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:20,082 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2068 transitions. [2023-12-25 13:21:20,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2068 transitions. [2023-12-25 13:21:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2023-12-25 13:21:20,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:20,086 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:20,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-25 13:21:20,086 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:20,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:20,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1230333931, now seen corresponding path program 1 times [2023-12-25 13:21:20,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:20,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984682920] [2023-12-25 13:21:20,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:20,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:20,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:20,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984682920] [2023-12-25 13:21:20,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984682920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:20,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:20,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:20,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010499797] [2023-12-25 13:21:20,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:20,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:20,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:20,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:20,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:20,606 INFO L87 Difference]: Start difference. First operand 1257 states and 2068 transitions. Second operand has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:20,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:20,857 INFO L93 Difference]: Finished difference Result 2282 states and 3750 transitions. [2023-12-25 13:21:20,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:20,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 487 [2023-12-25 13:21:20,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:20,872 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:20,872 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:20,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:20,874 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3631 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:20,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3638 Valid, 3874 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:20,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:20,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:20,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6450320512820513) internal successors, (2053), 1248 states have internal predecessors, (2053), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:20,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2067 transitions. [2023-12-25 13:21:20,889 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2067 transitions. Word has length 487 [2023-12-25 13:21:20,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:20,890 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2067 transitions. [2023-12-25 13:21:20,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2067 transitions. [2023-12-25 13:21:20,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2023-12-25 13:21:20,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:20,895 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:20,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-25 13:21:20,896 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:20,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:20,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1629561155, now seen corresponding path program 1 times [2023-12-25 13:21:20,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:20,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381398982] [2023-12-25 13:21:20,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:20,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:21,451 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:21,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:21,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381398982] [2023-12-25 13:21:21,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381398982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:21,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:21,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:21,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649176192] [2023-12-25 13:21:21,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:21,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:21,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:21,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:21,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:21,453 INFO L87 Difference]: Start difference. First operand 1257 states and 2067 transitions. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:21,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:21,661 INFO L93 Difference]: Finished difference Result 2282 states and 3748 transitions. [2023-12-25 13:21:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:21,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 488 [2023-12-25 13:21:21,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:21,664 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:21,664 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:21,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:21,665 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 1940 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:21,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 3884 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:21,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:21,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6442307692307692) internal successors, (2052), 1248 states have internal predecessors, (2052), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:21,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2066 transitions. [2023-12-25 13:21:21,683 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2066 transitions. Word has length 488 [2023-12-25 13:21:21,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:21,683 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2066 transitions. [2023-12-25 13:21:21,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:21,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2066 transitions. [2023-12-25 13:21:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2023-12-25 13:21:21,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:21,687 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:21,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-25 13:21:21,687 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:21,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2129856453, now seen corresponding path program 1 times [2023-12-25 13:21:21,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597553034] [2023-12-25 13:21:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:22,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:22,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597553034] [2023-12-25 13:21:22,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597553034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:22,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:22,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:22,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512780794] [2023-12-25 13:21:22,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:22,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:22,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:22,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:22,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:22,273 INFO L87 Difference]: Start difference. First operand 1257 states and 2066 transitions. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:22,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:22,530 INFO L93 Difference]: Finished difference Result 2282 states and 3746 transitions. [2023-12-25 13:21:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:22,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 489 [2023-12-25 13:21:22,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:22,532 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:22,532 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:22,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:22,534 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3615 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:22,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 3874 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:22,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:22,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6434294871794872) internal successors, (2051), 1248 states have internal predecessors, (2051), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:22,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2065 transitions. [2023-12-25 13:21:22,552 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2065 transitions. Word has length 489 [2023-12-25 13:21:22,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:22,552 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2065 transitions. [2023-12-25 13:21:22,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:22,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2065 transitions. [2023-12-25 13:21:22,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2023-12-25 13:21:22,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:22,555 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:22,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-25 13:21:22,556 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:22,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:22,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1416615133, now seen corresponding path program 1 times [2023-12-25 13:21:22,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:22,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721567890] [2023-12-25 13:21:22,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:22,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:23,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:23,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721567890] [2023-12-25 13:21:23,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721567890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:23,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:23,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:23,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173933451] [2023-12-25 13:21:23,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:23,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:23,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:23,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:23,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:23,168 INFO L87 Difference]: Start difference. First operand 1257 states and 2065 transitions. Second operand has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:23,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:23,415 INFO L93 Difference]: Finished difference Result 2282 states and 3744 transitions. [2023-12-25 13:21:23,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:23,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 490 [2023-12-25 13:21:23,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:23,417 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:23,417 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:23,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:23,420 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3607 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:23,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3614 Valid, 3874 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:23,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:23,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.642628205128205) internal successors, (2050), 1248 states have internal predecessors, (2050), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2064 transitions. [2023-12-25 13:21:23,433 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2064 transitions. Word has length 490 [2023-12-25 13:21:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:23,434 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2064 transitions. [2023-12-25 13:21:23,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:23,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2064 transitions. [2023-12-25 13:21:23,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2023-12-25 13:21:23,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:23,437 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:23,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-25 13:21:23,437 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:23,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:23,438 INFO L85 PathProgramCache]: Analyzing trace with hash 227777695, now seen corresponding path program 1 times [2023-12-25 13:21:23,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:23,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190605145] [2023-12-25 13:21:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:23,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:23,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:23,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190605145] [2023-12-25 13:21:23,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190605145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:23,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:23,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:23,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732775806] [2023-12-25 13:21:23,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:23,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:23,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:23,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:23,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:23,977 INFO L87 Difference]: Start difference. First operand 1257 states and 2064 transitions. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:24,214 INFO L93 Difference]: Finished difference Result 2282 states and 3742 transitions. [2023-12-25 13:21:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:24,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 491 [2023-12-25 13:21:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:24,217 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:24,217 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:24,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:24,219 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3599 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:24,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3606 Valid, 3874 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:24,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:24,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6418269230769231) internal successors, (2049), 1248 states have internal predecessors, (2049), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2063 transitions. [2023-12-25 13:21:24,237 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2063 transitions. Word has length 491 [2023-12-25 13:21:24,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:24,237 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2063 transitions. [2023-12-25 13:21:24,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:24,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2063 transitions. [2023-12-25 13:21:24,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-12-25 13:21:24,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:24,240 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:24,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-25 13:21:24,240 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:24,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:24,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1663668873, now seen corresponding path program 1 times [2023-12-25 13:21:24,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:24,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396124401] [2023-12-25 13:21:24,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:24,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:24,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:24,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396124401] [2023-12-25 13:21:24,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396124401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:24,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:24,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:24,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969251459] [2023-12-25 13:21:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:24,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:24,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:24,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:24,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:24,817 INFO L87 Difference]: Start difference. First operand 1257 states and 2063 transitions. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:25,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:25,048 INFO L93 Difference]: Finished difference Result 2282 states and 3740 transitions. [2023-12-25 13:21:25,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:25,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 492 [2023-12-25 13:21:25,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:25,051 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:25,051 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:25,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:25,053 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 1924 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:25,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 3884 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:25,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.641025641025641) internal successors, (2048), 1248 states have internal predecessors, (2048), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2062 transitions. [2023-12-25 13:21:25,074 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2062 transitions. Word has length 492 [2023-12-25 13:21:25,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:25,074 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2062 transitions. [2023-12-25 13:21:25,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2062 transitions. [2023-12-25 13:21:25,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-12-25 13:21:25,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:25,077 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:25,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-25 13:21:25,077 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:25,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:25,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1302046329, now seen corresponding path program 1 times [2023-12-25 13:21:25,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:25,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180586857] [2023-12-25 13:21:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:25,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:25,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:25,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180586857] [2023-12-25 13:21:25,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180586857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:25,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:25,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:25,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536977590] [2023-12-25 13:21:25,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:25,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:25,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:25,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:25,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:25,608 INFO L87 Difference]: Start difference. First operand 1257 states and 2062 transitions. Second operand has 5 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:25,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:25,822 INFO L93 Difference]: Finished difference Result 2282 states and 3738 transitions. [2023-12-25 13:21:25,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:25,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 493 [2023-12-25 13:21:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:25,824 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:25,824 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:25,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:25,825 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 3583 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:25,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3590 Valid, 3874 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:25,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:25,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.640224358974359) internal successors, (2047), 1248 states have internal predecessors, (2047), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:25,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2061 transitions. [2023-12-25 13:21:25,837 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2061 transitions. Word has length 493 [2023-12-25 13:21:25,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:25,838 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2061 transitions. [2023-12-25 13:21:25,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:25,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2061 transitions. [2023-12-25 13:21:25,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-12-25 13:21:25,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:25,840 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:25,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-25 13:21:25,840 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:25,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:25,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1504537361, now seen corresponding path program 1 times [2023-12-25 13:21:25,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:25,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960663138] [2023-12-25 13:21:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:25,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:26,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:26,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960663138] [2023-12-25 13:21:26,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960663138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:26,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:26,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:26,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089927137] [2023-12-25 13:21:26,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:26,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:26,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:26,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:26,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:26,686 INFO L87 Difference]: Start difference. First operand 1257 states and 2061 transitions. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:26,772 INFO L93 Difference]: Finished difference Result 2282 states and 3736 transitions. [2023-12-25 13:21:26,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:26,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 494 [2023-12-25 13:21:26,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:26,774 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:26,774 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:26,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:26,776 INFO L413 NwaCegarLoop]: 2016 mSDtfsCounter, 1806 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 4034 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:26,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 4034 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:26,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.638621794871795) internal successors, (2045), 1248 states have internal predecessors, (2045), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2059 transitions. [2023-12-25 13:21:26,788 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2059 transitions. Word has length 494 [2023-12-25 13:21:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:26,788 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2059 transitions. [2023-12-25 13:21:26,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2059 transitions. [2023-12-25 13:21:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2023-12-25 13:21:26,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:26,791 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:26,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-25 13:21:26,791 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:26,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:26,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1862317199, now seen corresponding path program 1 times [2023-12-25 13:21:26,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:26,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763240880] [2023-12-25 13:21:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:26,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:27,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763240880] [2023-12-25 13:21:27,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763240880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:27,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:27,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:27,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613542460] [2023-12-25 13:21:27,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:27,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:27,371 INFO L87 Difference]: Start difference. First operand 1257 states and 2059 transitions. Second operand has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:27,466 INFO L93 Difference]: Finished difference Result 2282 states and 3732 transitions. [2023-12-25 13:21:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:27,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 495 [2023-12-25 13:21:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:27,468 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:27,468 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:27,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:27,469 INFO L413 NwaCegarLoop]: 2016 mSDtfsCounter, 2041 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:27,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 4044 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:27,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6378205128205128) internal successors, (2044), 1248 states have internal predecessors, (2044), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2058 transitions. [2023-12-25 13:21:27,482 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2058 transitions. Word has length 495 [2023-12-25 13:21:27,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:27,482 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2058 transitions. [2023-12-25 13:21:27,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:27,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2058 transitions. [2023-12-25 13:21:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-12-25 13:21:27,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:27,485 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:27,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-25 13:21:27,485 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:27,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash -2014825491, now seen corresponding path program 1 times [2023-12-25 13:21:27,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:27,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165313651] [2023-12-25 13:21:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,068 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:28,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:28,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165313651] [2023-12-25 13:21:28,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165313651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:28,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:28,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:28,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493306783] [2023-12-25 13:21:28,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:28,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:28,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:28,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:28,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:28,070 INFO L87 Difference]: Start difference. First operand 1257 states and 2058 transitions. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:28,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:28,157 INFO L93 Difference]: Finished difference Result 2282 states and 3730 transitions. [2023-12-25 13:21:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:28,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 496 [2023-12-25 13:21:28,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:28,159 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:28,159 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:28,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:28,161 INFO L413 NwaCegarLoop]: 2016 mSDtfsCounter, 1935 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:28,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 4044 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:28,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:28,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6370192307692308) internal successors, (2043), 1248 states have internal predecessors, (2043), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2057 transitions. [2023-12-25 13:21:28,201 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2057 transitions. Word has length 496 [2023-12-25 13:21:28,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:28,202 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2057 transitions. [2023-12-25 13:21:28,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:28,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2057 transitions. [2023-12-25 13:21:28,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-12-25 13:21:28,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:28,204 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:28,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-25 13:21:28,205 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:28,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:28,205 INFO L85 PathProgramCache]: Analyzing trace with hash -33321405, now seen corresponding path program 1 times [2023-12-25 13:21:28,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:28,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893908206] [2023-12-25 13:21:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:28,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:28,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:28,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893908206] [2023-12-25 13:21:28,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893908206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:28,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:28,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:28,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851862431] [2023-12-25 13:21:28,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:28,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:28,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:28,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:28,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:28,808 INFO L87 Difference]: Start difference. First operand 1257 states and 2057 transitions. Second operand has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:28,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:28,901 INFO L93 Difference]: Finished difference Result 2282 states and 3728 transitions. [2023-12-25 13:21:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:28,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 497 [2023-12-25 13:21:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:28,903 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:28,903 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:28,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:28,909 INFO L413 NwaCegarLoop]: 2016 mSDtfsCounter, 1931 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:28,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 4044 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:28,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6362179487179487) internal successors, (2042), 1248 states have internal predecessors, (2042), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2056 transitions. [2023-12-25 13:21:28,923 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2056 transitions. Word has length 497 [2023-12-25 13:21:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:28,923 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2056 transitions. [2023-12-25 13:21:28,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2056 transitions. [2023-12-25 13:21:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2023-12-25 13:21:28,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:28,926 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:28,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-25 13:21:28,926 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:28,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:28,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1902561529, now seen corresponding path program 1 times [2023-12-25 13:21:28,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:28,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679258692] [2023-12-25 13:21:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:28,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:29,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679258692] [2023-12-25 13:21:29,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679258692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:29,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:29,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:29,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551238789] [2023-12-25 13:21:29,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:29,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:29,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:29,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:29,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:29,838 INFO L87 Difference]: Start difference. First operand 1257 states and 2056 transitions. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:30,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:30,360 INFO L93 Difference]: Finished difference Result 2282 states and 3726 transitions. [2023-12-25 13:21:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:30,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 498 [2023-12-25 13:21:30,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:30,362 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:30,362 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:30,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:30,364 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 1695 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:30,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 3220 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:21:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6346153846153846) internal successors, (2040), 1248 states have internal predecessors, (2040), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2054 transitions. [2023-12-25 13:21:30,378 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2054 transitions. Word has length 498 [2023-12-25 13:21:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:30,378 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2054 transitions. [2023-12-25 13:21:30,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2054 transitions. [2023-12-25 13:21:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2023-12-25 13:21:30,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:30,381 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:30,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-25 13:21:30,381 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:30,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1398187901, now seen corresponding path program 1 times [2023-12-25 13:21:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:30,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272756436] [2023-12-25 13:21:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:30,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:30,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272756436] [2023-12-25 13:21:30,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272756436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:30,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:30,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088661041] [2023-12-25 13:21:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:30,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:30,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:30,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:30,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:30,955 INFO L87 Difference]: Start difference. First operand 1257 states and 2054 transitions. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:31,428 INFO L93 Difference]: Finished difference Result 2421 states and 3937 transitions. [2023-12-25 13:21:31,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:21:31,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 499 [2023-12-25 13:21:31,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:31,430 INFO L225 Difference]: With dead ends: 2421 [2023-12-25 13:21:31,430 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:31,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:21:31,431 INFO L413 NwaCegarLoop]: 2034 mSDtfsCounter, 2124 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:31,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2124 Valid, 5686 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:21:31,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:31,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6338141025641026) internal successors, (2039), 1248 states have internal predecessors, (2039), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:31,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2053 transitions. [2023-12-25 13:21:31,443 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2053 transitions. Word has length 499 [2023-12-25 13:21:31,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:31,444 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2053 transitions. [2023-12-25 13:21:31,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2053 transitions. [2023-12-25 13:21:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2023-12-25 13:21:31,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:31,446 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:31,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-25 13:21:31,447 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:31,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:31,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1704363741, now seen corresponding path program 1 times [2023-12-25 13:21:31,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:31,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92479644] [2023-12-25 13:21:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:31,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:32,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:32,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92479644] [2023-12-25 13:21:32,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92479644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:32,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:32,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:32,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105352390] [2023-12-25 13:21:32,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:32,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:32,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:32,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:32,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:32,963 INFO L87 Difference]: Start difference. First operand 1257 states and 2053 transitions. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:33,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:33,395 INFO L93 Difference]: Finished difference Result 2284 states and 3722 transitions. [2023-12-25 13:21:33,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 13:21:33,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 500 [2023-12-25 13:21:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:33,397 INFO L225 Difference]: With dead ends: 2284 [2023-12-25 13:21:33,397 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:33,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:33,399 INFO L413 NwaCegarLoop]: 2048 mSDtfsCounter, 4 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5716 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:33,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5716 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:21:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6330128205128205) internal successors, (2038), 1248 states have internal predecessors, (2038), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2052 transitions. [2023-12-25 13:21:33,411 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2052 transitions. Word has length 500 [2023-12-25 13:21:33,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:33,411 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2052 transitions. [2023-12-25 13:21:33,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2052 transitions. [2023-12-25 13:21:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:33,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:33,414 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:33,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-25 13:21:33,414 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:33,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:33,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1267018647, now seen corresponding path program 1 times [2023-12-25 13:21:33,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:33,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451291506] [2023-12-25 13:21:33,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:33,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:34,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:34,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451291506] [2023-12-25 13:21:34,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451291506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:34,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:34,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:34,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657773810] [2023-12-25 13:21:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:34,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:34,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:34,613 INFO L87 Difference]: Start difference. First operand 1257 states and 2052 transitions. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:34,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:34,687 INFO L93 Difference]: Finished difference Result 2282 states and 3718 transitions. [2023-12-25 13:21:34,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:34,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 501 [2023-12-25 13:21:34,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:34,689 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:34,689 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:34,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:34,690 INFO L413 NwaCegarLoop]: 2012 mSDtfsCounter, 1686 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 4026 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:34,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 4026 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:34,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:34,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:34,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6322115384615385) internal successors, (2037), 1248 states have internal predecessors, (2037), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2051 transitions. [2023-12-25 13:21:34,702 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2051 transitions. Word has length 501 [2023-12-25 13:21:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:34,702 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2051 transitions. [2023-12-25 13:21:34,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2051 transitions. [2023-12-25 13:21:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:34,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:34,705 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:34,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-25 13:21:34,705 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:34,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 661913579, now seen corresponding path program 1 times [2023-12-25 13:21:34,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:34,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959977005] [2023-12-25 13:21:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:34,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:35,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:35,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959977005] [2023-12-25 13:21:35,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959977005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:35,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:35,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:35,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050283559] [2023-12-25 13:21:35,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:35,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:35,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:35,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:35,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:35,763 INFO L87 Difference]: Start difference. First operand 1257 states and 2051 transitions. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:35,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:35,899 INFO L93 Difference]: Finished difference Result 2282 states and 3716 transitions. [2023-12-25 13:21:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:35,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 501 [2023-12-25 13:21:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:35,901 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:35,901 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:35,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:35,904 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 1790 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:35,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 3966 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:35,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:35,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:35,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6314102564102564) internal successors, (2036), 1248 states have internal predecessors, (2036), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:35,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2050 transitions. [2023-12-25 13:21:35,920 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2050 transitions. Word has length 501 [2023-12-25 13:21:35,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:35,920 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2050 transitions. [2023-12-25 13:21:35,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2050 transitions. [2023-12-25 13:21:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:35,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:35,923 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:35,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-25 13:21:35,923 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:35,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:35,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1848890921, now seen corresponding path program 1 times [2023-12-25 13:21:35,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117547816] [2023-12-25 13:21:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:35,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:36,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:36,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117547816] [2023-12-25 13:21:36,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117547816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:36,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:36,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:36,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629867651] [2023-12-25 13:21:36,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:36,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:36,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:36,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:36,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:36,931 INFO L87 Difference]: Start difference. First operand 1257 states and 2050 transitions. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:37,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:37,077 INFO L93 Difference]: Finished difference Result 2282 states and 3714 transitions. [2023-12-25 13:21:37,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:37,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 501 [2023-12-25 13:21:37,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:37,080 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:37,080 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:37,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:37,083 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 3569 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3569 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:37,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3569 Valid, 3966 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:37,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6306089743589745) internal successors, (2035), 1248 states have internal predecessors, (2035), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2049 transitions. [2023-12-25 13:21:37,098 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2049 transitions. Word has length 501 [2023-12-25 13:21:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:37,099 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2049 transitions. [2023-12-25 13:21:37,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:37,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2049 transitions. [2023-12-25 13:21:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:37,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:37,102 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:37,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-25 13:21:37,102 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:37,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1847056555, now seen corresponding path program 1 times [2023-12-25 13:21:37,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:37,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164925231] [2023-12-25 13:21:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:37,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:38,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:38,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164925231] [2023-12-25 13:21:38,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164925231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:38,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:38,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645796730] [2023-12-25 13:21:38,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:38,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:38,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:38,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:38,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:38,183 INFO L87 Difference]: Start difference. First operand 1257 states and 2049 transitions. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:38,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:38,320 INFO L93 Difference]: Finished difference Result 2282 states and 3712 transitions. [2023-12-25 13:21:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 501 [2023-12-25 13:21:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:38,323 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:38,323 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:38,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:38,324 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 3564 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3564 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:38,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3564 Valid, 3966 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:38,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:38,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6298076923076923) internal successors, (2034), 1248 states have internal predecessors, (2034), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2048 transitions. [2023-12-25 13:21:38,336 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2048 transitions. Word has length 501 [2023-12-25 13:21:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:38,336 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2048 transitions. [2023-12-25 13:21:38,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2048 transitions. [2023-12-25 13:21:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:38,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:38,339 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:38,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-25 13:21:38,340 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:38,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1577891177, now seen corresponding path program 1 times [2023-12-25 13:21:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571623337] [2023-12-25 13:21:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:39,354 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:39,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:39,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571623337] [2023-12-25 13:21:39,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571623337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:39,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:39,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:39,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560690707] [2023-12-25 13:21:39,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:39,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:39,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:39,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:39,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:39,357 INFO L87 Difference]: Start difference. First operand 1257 states and 2048 transitions. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:39,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:39,492 INFO L93 Difference]: Finished difference Result 2282 states and 3710 transitions. [2023-12-25 13:21:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:39,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 501 [2023-12-25 13:21:39,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:39,494 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:39,494 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:39,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:39,495 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 1784 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:39,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 3976 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:39,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6290064102564104) internal successors, (2033), 1248 states have internal predecessors, (2033), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2047 transitions. [2023-12-25 13:21:39,522 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2047 transitions. Word has length 501 [2023-12-25 13:21:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:39,523 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2047 transitions. [2023-12-25 13:21:39,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:39,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2047 transitions. [2023-12-25 13:21:39,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:39,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:39,525 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:39,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-25 13:21:39,526 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:39,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:39,526 INFO L85 PathProgramCache]: Analyzing trace with hash 539306603, now seen corresponding path program 1 times [2023-12-25 13:21:39,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:39,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987569722] [2023-12-25 13:21:39,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:39,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:40,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:40,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987569722] [2023-12-25 13:21:40,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987569722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:40,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:40,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428628840] [2023-12-25 13:21:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:40,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:40,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:40,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:40,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:40,564 INFO L87 Difference]: Start difference. First operand 1257 states and 2047 transitions. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:40,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:40,707 INFO L93 Difference]: Finished difference Result 2282 states and 3708 transitions. [2023-12-25 13:21:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:40,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 501 [2023-12-25 13:21:40,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:40,724 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:40,724 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:40,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:40,726 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 1783 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:40,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 3976 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:40,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:40,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:40,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6282051282051282) internal successors, (2032), 1248 states have internal predecessors, (2032), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2046 transitions. [2023-12-25 13:21:40,752 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2046 transitions. Word has length 501 [2023-12-25 13:21:40,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:40,771 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2046 transitions. [2023-12-25 13:21:40,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2046 transitions. [2023-12-25 13:21:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:40,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:40,774 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:40,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-25 13:21:40,774 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:40,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:40,774 INFO L85 PathProgramCache]: Analyzing trace with hash -83974999, now seen corresponding path program 1 times [2023-12-25 13:21:40,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:40,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134170643] [2023-12-25 13:21:40,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:40,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:41,791 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:41,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:41,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134170643] [2023-12-25 13:21:41,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134170643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:41,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:41,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:41,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229081696] [2023-12-25 13:21:41,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:41,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:41,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:41,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:41,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:41,793 INFO L87 Difference]: Start difference. First operand 1257 states and 2046 transitions. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:41,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:41,924 INFO L93 Difference]: Finished difference Result 2282 states and 3706 transitions. [2023-12-25 13:21:41,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:41,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 501 [2023-12-25 13:21:41,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:41,926 INFO L225 Difference]: With dead ends: 2282 [2023-12-25 13:21:41,926 INFO L226 Difference]: Without dead ends: 1257 [2023-12-25 13:21:41,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:41,928 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 3449 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3449 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:41,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3449 Valid, 3966 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:21:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-12-25 13:21:41,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-12-25 13:21:41,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1248 states have (on average 1.6274038461538463) internal successors, (2031), 1248 states have internal predecessors, (2031), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:41,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2045 transitions. [2023-12-25 13:21:41,940 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2045 transitions. Word has length 501 [2023-12-25 13:21:41,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:41,940 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2045 transitions. [2023-12-25 13:21:41,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2045 transitions. [2023-12-25 13:21:41,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 13:21:41,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:41,943 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:41,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-25 13:21:41,943 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:41,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2117369045, now seen corresponding path program 1 times [2023-12-25 13:21:41,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856748625] [2023-12-25 13:21:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:41,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-25 13:21:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-25 13:21:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-25 13:21:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:43,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:43,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856748625] [2023-12-25 13:21:43,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856748625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:43,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:43,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:21:43,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691443384] [2023-12-25 13:21:43,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:43,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:21:43,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:21:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:43,300 INFO L87 Difference]: Start difference. First operand 1257 states and 2045 transitions. Second operand has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:43,885 INFO L93 Difference]: Finished difference Result 2401 states and 3896 transitions. [2023-12-25 13:21:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:21:43,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 501 [2023-12-25 13:21:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:43,889 INFO L225 Difference]: With dead ends: 2401 [2023-12-25 13:21:43,889 INFO L226 Difference]: Without dead ends: 1330 [2023-12-25 13:21:43,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:21:43,891 INFO L413 NwaCegarLoop]: 2139 mSDtfsCounter, 3612 mSDsluCounter, 6461 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3612 SdHoareTripleChecker+Valid, 8600 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:43,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3612 Valid, 8600 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:21:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2023-12-25 13:21:43,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1259. [2023-12-25 13:21:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1250 states have (on average 1.6256) internal successors, (2032), 1250 states have internal predecessors, (2032), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-25 13:21:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 2046 transitions. [2023-12-25 13:21:43,942 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 2046 transitions. Word has length 501 [2023-12-25 13:21:43,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:43,942 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 2046 transitions. [2023-12-25 13:21:43,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:43,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 2046 transitions. [2023-12-25 13:21:43,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2023-12-25 13:21:43,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:43,945 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-25 13:21:43,945 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:43,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1616130333, now seen corresponding path program 1 times [2023-12-25 13:21:43,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:43,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267850593] [2023-12-25 13:21:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-25 13:21:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-25 13:21:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-25 13:21:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-25 13:21:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-25 13:21:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:45,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:45,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267850593] [2023-12-25 13:21:45,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267850593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:45,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:45,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:21:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081018167] [2023-12-25 13:21:45,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:45,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:21:45,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:45,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:21:45,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:45,461 INFO L87 Difference]: Start difference. First operand 1259 states and 2046 transitions. Second operand has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:45,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:45,955 INFO L93 Difference]: Finished difference Result 3405 states and 5514 transitions. [2023-12-25 13:21:45,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:21:45,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 502 [2023-12-25 13:21:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:45,959 INFO L225 Difference]: With dead ends: 3405 [2023-12-25 13:21:45,959 INFO L226 Difference]: Without dead ends: 2295 [2023-12-25 13:21:45,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:21:45,961 INFO L413 NwaCegarLoop]: 2042 mSDtfsCounter, 1814 mSDsluCounter, 7733 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1819 SdHoareTripleChecker+Valid, 9775 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:45,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1819 Valid, 9775 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 13:21:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2023-12-25 13:21:45,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 1305. [2023-12-25 13:21:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1294 states have (on average 1.6244204018547141) internal successors, (2102), 1294 states have internal predecessors, (2102), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 13:21:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 2120 transitions. [2023-12-25 13:21:45,983 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 2120 transitions. Word has length 502 [2023-12-25 13:21:45,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:45,983 INFO L495 AbstractCegarLoop]: Abstraction has 1305 states and 2120 transitions. [2023-12-25 13:21:45,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:45,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 2120 transitions. [2023-12-25 13:21:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2023-12-25 13:21:45,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:45,986 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:45,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-25 13:21:45,986 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:45,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1361783881, now seen corresponding path program 1 times [2023-12-25 13:21:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:45,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141975898] [2023-12-25 13:21:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:21:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:21:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:21:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-25 13:21:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-25 13:21:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:48,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:48,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141975898] [2023-12-25 13:21:48,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141975898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:48,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:48,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-25 13:21:48,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204178772] [2023-12-25 13:21:48,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:48,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 13:21:48,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:48,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 13:21:48,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-25 13:21:48,293 INFO L87 Difference]: Start difference. First operand 1305 states and 2120 transitions. Second operand has 11 states, 11 states have (on average 42.81818181818182) internal successors, (471), 11 states have internal predecessors, (471), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:51,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:51,624 INFO L93 Difference]: Finished difference Result 5618 states and 9090 transitions. [2023-12-25 13:21:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 13:21:51,625 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 42.81818181818182) internal successors, (471), 11 states have internal predecessors, (471), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 503 [2023-12-25 13:21:51,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:51,634 INFO L225 Difference]: With dead ends: 5618 [2023-12-25 13:21:51,635 INFO L226 Difference]: Without dead ends: 4591 [2023-12-25 13:21:51,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2023-12-25 13:21:51,639 INFO L413 NwaCegarLoop]: 2928 mSDtfsCounter, 11588 mSDsluCounter, 18458 mSDsCounter, 0 mSdLazyCounter, 5983 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11604 SdHoareTripleChecker+Valid, 21386 SdHoareTripleChecker+Invalid, 6026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 5983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:51,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11604 Valid, 21386 Invalid, 6026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 5983 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 13:21:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2023-12-25 13:21:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 1526. [2023-12-25 13:21:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1504 states have (on average 1.617686170212766) internal successors, (2433), 1504 states have internal predecessors, (2433), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-25 13:21:51,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2473 transitions. [2023-12-25 13:21:51,694 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2473 transitions. Word has length 503 [2023-12-25 13:21:51,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:51,695 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 2473 transitions. [2023-12-25 13:21:51,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 42.81818181818182) internal successors, (471), 11 states have internal predecessors, (471), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2473 transitions. [2023-12-25 13:21:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2023-12-25 13:21:51,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:51,698 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:51,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-25 13:21:51,699 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:51,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:51,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2060548983, now seen corresponding path program 1 times [2023-12-25 13:21:51,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:51,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063708120] [2023-12-25 13:21:51,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:51,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:21:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-25 13:21:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:21:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:21:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:21:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-25 13:21:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-25 13:21:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:53,430 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:53,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:53,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063708120] [2023-12-25 13:21:53,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063708120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:53,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:53,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:21:53,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132348637] [2023-12-25 13:21:53,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:53,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:21:53,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:53,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:21:53,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:21:53,434 INFO L87 Difference]: Start difference. First operand 1526 states and 2473 transitions. Second operand has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:53,850 INFO L93 Difference]: Finished difference Result 4816 states and 7797 transitions. [2023-12-25 13:21:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:21:53,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 503 [2023-12-25 13:21:53,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:53,856 INFO L225 Difference]: With dead ends: 4816 [2023-12-25 13:21:53,856 INFO L226 Difference]: Without dead ends: 3772 [2023-12-25 13:21:53,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:21:53,864 INFO L413 NwaCegarLoop]: 2058 mSDtfsCounter, 10115 mSDsluCounter, 7658 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10122 SdHoareTripleChecker+Valid, 9716 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:53,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10122 Valid, 9716 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 13:21:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2023-12-25 13:21:53,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 1652. [2023-12-25 13:21:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1622 states have (on average 1.6177558569667079) internal successors, (2624), 1622 states have internal predecessors, (2624), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-25 13:21:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2680 transitions. [2023-12-25 13:21:53,911 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2680 transitions. Word has length 503 [2023-12-25 13:21:53,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:53,913 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 2680 transitions. [2023-12-25 13:21:53,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:21:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2680 transitions. [2023-12-25 13:21:53,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:21:53,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:53,917 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:53,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-25 13:21:53,917 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:53,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:53,917 INFO L85 PathProgramCache]: Analyzing trace with hash -955195063, now seen corresponding path program 1 times [2023-12-25 13:21:53,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:53,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654257950] [2023-12-25 13:21:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:53,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:21:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:21:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:21:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:21:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:21:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:56,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:56,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654257950] [2023-12-25 13:21:56,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654257950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:56,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:56,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:21:56,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329612183] [2023-12-25 13:21:56,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:56,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:21:56,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:56,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:21:56,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:21:56,110 INFO L87 Difference]: Start difference. First operand 1652 states and 2680 transitions. Second operand has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:56,415 INFO L93 Difference]: Finished difference Result 4718 states and 7639 transitions. [2023-12-25 13:21:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:21:56,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 504 [2023-12-25 13:21:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:56,419 INFO L225 Difference]: With dead ends: 4718 [2023-12-25 13:21:56,419 INFO L226 Difference]: Without dead ends: 3686 [2023-12-25 13:21:56,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:21:56,421 INFO L413 NwaCegarLoop]: 3705 mSDtfsCounter, 6719 mSDsluCounter, 13254 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6731 SdHoareTripleChecker+Valid, 16959 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:56,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6731 Valid, 16959 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:56,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2023-12-25 13:21:56,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 1723. [2023-12-25 13:21:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6143364928909953) internal successors, (2725), 1688 states have internal predecessors, (2725), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:21:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2791 transitions. [2023-12-25 13:21:56,467 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2791 transitions. Word has length 504 [2023-12-25 13:21:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:56,467 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2791 transitions. [2023-12-25 13:21:56,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:21:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2791 transitions. [2023-12-25 13:21:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:21:56,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:56,470 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:56,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-25 13:21:56,471 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:56,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash 151435391, now seen corresponding path program 1 times [2023-12-25 13:21:56,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:56,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679074633] [2023-12-25 13:21:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:56,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:21:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:21:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:21:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:21:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:21:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:57,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:57,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679074633] [2023-12-25 13:21:57,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679074633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:57,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:57,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:21:57,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094193352] [2023-12-25 13:21:57,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:57,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:21:57,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:57,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:21:57,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:21:57,535 INFO L87 Difference]: Start difference. First operand 1723 states and 2791 transitions. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:57,869 INFO L93 Difference]: Finished difference Result 2750 states and 4451 transitions. [2023-12-25 13:21:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:57,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:21:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:57,876 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:21:57,876 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:21:57,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:57,880 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1766 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:57,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 3840 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 13:21:57,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:21:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:21:57,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.613744075829384) internal successors, (2724), 1688 states have internal predecessors, (2724), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:21:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2790 transitions. [2023-12-25 13:21:57,920 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2790 transitions. Word has length 504 [2023-12-25 13:21:57,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:57,920 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2790 transitions. [2023-12-25 13:21:57,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2790 transitions. [2023-12-25 13:21:57,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:21:57,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:57,923 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:57,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-25 13:21:57,923 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:57,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash -703104067, now seen corresponding path program 1 times [2023-12-25 13:21:57,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:57,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457065544] [2023-12-25 13:21:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:57,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:21:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:21:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:21:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:21:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:21:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:21:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:21:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:21:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:21:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:21:59,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:21:59,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457065544] [2023-12-25 13:21:59,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457065544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:21:59,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:21:59,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:21:59,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861577888] [2023-12-25 13:21:59,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:21:59,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:21:59,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:21:59,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:21:59,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:21:59,343 INFO L87 Difference]: Start difference. First operand 1723 states and 2790 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:59,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:21:59,628 INFO L93 Difference]: Finished difference Result 2750 states and 4449 transitions. [2023-12-25 13:21:59,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:21:59,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:21:59,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:21:59,632 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:21:59,632 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:21:59,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:21:59,633 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1764 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:21:59,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 3850 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:21:59,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:21:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:21:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6131516587677726) internal successors, (2723), 1688 states have internal predecessors, (2723), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:21:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2789 transitions. [2023-12-25 13:21:59,681 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2789 transitions. Word has length 504 [2023-12-25 13:21:59,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:21:59,682 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2789 transitions. [2023-12-25 13:21:59,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:21:59,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2789 transitions. [2023-12-25 13:21:59,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:21:59,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:21:59,686 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:21:59,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-25 13:21:59,686 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:21:59,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:21:59,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1978027713, now seen corresponding path program 1 times [2023-12-25 13:21:59,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:21:59,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520544487] [2023-12-25 13:21:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:21:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:00,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:00,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520544487] [2023-12-25 13:22:00,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520544487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:00,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:00,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:00,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811690187] [2023-12-25 13:22:00,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:00,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:00,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:00,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:00,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:00,744 INFO L87 Difference]: Start difference. First operand 1723 states and 2789 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:00,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:00,991 INFO L93 Difference]: Finished difference Result 2750 states and 4447 transitions. [2023-12-25 13:22:00,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:00,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:00,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:00,993 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:00,993 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:00,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:00,994 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1763 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:00,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 3850 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:01,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6125592417061612) internal successors, (2722), 1688 states have internal predecessors, (2722), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2788 transitions. [2023-12-25 13:22:01,030 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2788 transitions. Word has length 504 [2023-12-25 13:22:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:01,030 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2788 transitions. [2023-12-25 13:22:01,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2788 transitions. [2023-12-25 13:22:01,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:01,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:01,033 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:01,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-25 13:22:01,034 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:01,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:01,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1764410627, now seen corresponding path program 1 times [2023-12-25 13:22:01,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:01,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652960315] [2023-12-25 13:22:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:01,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:02,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:02,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652960315] [2023-12-25 13:22:02,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652960315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:02,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:02,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:02,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217051652] [2023-12-25 13:22:02,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:02,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:02,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:02,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:02,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:02,042 INFO L87 Difference]: Start difference. First operand 1723 states and 2788 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:02,262 INFO L93 Difference]: Finished difference Result 2750 states and 4445 transitions. [2023-12-25 13:22:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:02,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:02,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:02,265 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:02,265 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:02,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:02,266 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 3515 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:02,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3515 Valid, 3840 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6119668246445498) internal successors, (2721), 1688 states have internal predecessors, (2721), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2787 transitions. [2023-12-25 13:22:02,301 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2787 transitions. Word has length 504 [2023-12-25 13:22:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:02,301 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2787 transitions. [2023-12-25 13:22:02,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2787 transitions. [2023-12-25 13:22:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:02,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:02,304 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:02,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-25 13:22:02,305 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:02,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:02,305 INFO L85 PathProgramCache]: Analyzing trace with hash 805714431, now seen corresponding path program 1 times [2023-12-25 13:22:02,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:02,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141017586] [2023-12-25 13:22:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:02,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:03,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:03,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141017586] [2023-12-25 13:22:03,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141017586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:03,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:22:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368020855] [2023-12-25 13:22:03,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:03,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:22:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:22:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:22:03,363 INFO L87 Difference]: Start difference. First operand 1723 states and 2787 transitions. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:03,559 INFO L93 Difference]: Finished difference Result 2750 states and 4443 transitions. [2023-12-25 13:22:03,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:03,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:03,561 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:03,561 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:03,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:03,562 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1750 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:03,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 3840 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:03,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:03,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6113744075829384) internal successors, (2720), 1688 states have internal predecessors, (2720), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2786 transitions. [2023-12-25 13:22:03,601 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2786 transitions. Word has length 504 [2023-12-25 13:22:03,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:03,601 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2786 transitions. [2023-12-25 13:22:03,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:03,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2786 transitions. [2023-12-25 13:22:03,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:03,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:03,604 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-25 13:22:03,604 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:03,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash 732129853, now seen corresponding path program 1 times [2023-12-25 13:22:03,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:03,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794083254] [2023-12-25 13:22:03,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:03,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:04,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794083254] [2023-12-25 13:22:04,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794083254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:04,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:04,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:04,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678460288] [2023-12-25 13:22:04,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:04,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:04,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:04,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:04,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:04,616 INFO L87 Difference]: Start difference. First operand 1723 states and 2786 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:04,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:04,818 INFO L93 Difference]: Finished difference Result 2750 states and 4441 transitions. [2023-12-25 13:22:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:04,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:04,822 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:04,822 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:04,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:04,824 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1760 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:04,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 3850 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:22:04,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:04,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.610781990521327) internal successors, (2719), 1688 states have internal predecessors, (2719), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2785 transitions. [2023-12-25 13:22:04,881 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2785 transitions. Word has length 504 [2023-12-25 13:22:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2785 transitions. [2023-12-25 13:22:04,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2785 transitions. [2023-12-25 13:22:04,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:04,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:04,885 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:04,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-25 13:22:04,885 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:04,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:04,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1053273409, now seen corresponding path program 1 times [2023-12-25 13:22:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:04,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069689274] [2023-12-25 13:22:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:05,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:05,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069689274] [2023-12-25 13:22:05,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069689274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:05,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:05,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:05,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079925520] [2023-12-25 13:22:05,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:05,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:05,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:05,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:05,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:05,822 INFO L87 Difference]: Start difference. First operand 1723 states and 2785 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:06,050 INFO L93 Difference]: Finished difference Result 2750 states and 4439 transitions. [2023-12-25 13:22:06,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:06,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:06,053 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:06,053 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:06,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:06,054 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 3500 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3500 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:06,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3500 Valid, 3840 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:06,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6101895734597156) internal successors, (2718), 1688 states have internal predecessors, (2718), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2784 transitions. [2023-12-25 13:22:06,093 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2784 transitions. Word has length 504 [2023-12-25 13:22:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:06,093 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2784 transitions. [2023-12-25 13:22:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2784 transitions. [2023-12-25 13:22:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:06,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:06,097 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:06,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-25 13:22:06,097 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:06,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:06,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1167460733, now seen corresponding path program 1 times [2023-12-25 13:22:06,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:06,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144767618] [2023-12-25 13:22:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:06,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:07,067 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:07,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:07,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144767618] [2023-12-25 13:22:07,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144767618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:07,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:07,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:07,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775666286] [2023-12-25 13:22:07,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:07,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:07,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:07,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:07,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:07,071 INFO L87 Difference]: Start difference. First operand 1723 states and 2784 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:07,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:07,273 INFO L93 Difference]: Finished difference Result 2750 states and 4437 transitions. [2023-12-25 13:22:07,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:07,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:07,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:07,275 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:07,275 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:07,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:07,278 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1758 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:07,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 3850 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:22:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6095971563981042) internal successors, (2717), 1688 states have internal predecessors, (2717), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2783 transitions. [2023-12-25 13:22:07,316 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2783 transitions. Word has length 504 [2023-12-25 13:22:07,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:07,317 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2783 transitions. [2023-12-25 13:22:07,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2783 transitions. [2023-12-25 13:22:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:07,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:07,320 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:07,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-25 13:22:07,321 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:07,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1526435457, now seen corresponding path program 1 times [2023-12-25 13:22:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:07,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027888681] [2023-12-25 13:22:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:07,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:08,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:08,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027888681] [2023-12-25 13:22:08,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027888681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:08,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:08,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100138706] [2023-12-25 13:22:08,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:08,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:08,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:08,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:08,339 INFO L87 Difference]: Start difference. First operand 1723 states and 2783 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:08,559 INFO L93 Difference]: Finished difference Result 2750 states and 4435 transitions. [2023-12-25 13:22:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:08,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:08,562 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:08,562 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:08,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:08,563 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 3402 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3402 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:08,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3402 Valid, 3840 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:08,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:08,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6090047393364928) internal successors, (2716), 1688 states have internal predecessors, (2716), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2782 transitions. [2023-12-25 13:22:08,598 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2782 transitions. Word has length 504 [2023-12-25 13:22:08,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:08,599 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2782 transitions. [2023-12-25 13:22:08,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2782 transitions. [2023-12-25 13:22:08,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:08,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:08,602 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:08,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-25 13:22:08,602 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:08,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:08,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1149556925, now seen corresponding path program 1 times [2023-12-25 13:22:08,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:08,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298434395] [2023-12-25 13:22:08,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:08,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:09,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:09,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298434395] [2023-12-25 13:22:09,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298434395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:09,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:09,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:09,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139887433] [2023-12-25 13:22:09,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:09,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:09,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:09,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:09,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:09,590 INFO L87 Difference]: Start difference. First operand 1723 states and 2782 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:09,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:09,814 INFO L93 Difference]: Finished difference Result 2750 states and 4433 transitions. [2023-12-25 13:22:09,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:09,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:09,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:09,816 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:09,816 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:09,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:09,817 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 3397 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3397 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:09,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3397 Valid, 3840 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:09,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6084123222748816) internal successors, (2715), 1688 states have internal predecessors, (2715), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:09,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2781 transitions. [2023-12-25 13:22:09,854 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2781 transitions. Word has length 504 [2023-12-25 13:22:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:09,854 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2781 transitions. [2023-12-25 13:22:09,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:09,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2781 transitions. [2023-12-25 13:22:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:09,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:09,857 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:09,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-25 13:22:09,857 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:09,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:09,858 INFO L85 PathProgramCache]: Analyzing trace with hash -791025089, now seen corresponding path program 1 times [2023-12-25 13:22:09,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:09,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379021446] [2023-12-25 13:22:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:09,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:10,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379021446] [2023-12-25 13:22:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379021446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:10,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:10,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:10,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154212537] [2023-12-25 13:22:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:10,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:10,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:10,808 INFO L87 Difference]: Start difference. First operand 1723 states and 2781 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:11,034 INFO L93 Difference]: Finished difference Result 2750 states and 4431 transitions. [2023-12-25 13:22:11,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:11,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:11,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:11,036 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:11,036 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:11,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:11,038 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1755 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:11,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 3850 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:11,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6078199052132702) internal successors, (2714), 1688 states have internal predecessors, (2714), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2780 transitions. [2023-12-25 13:22:11,074 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2780 transitions. Word has length 504 [2023-12-25 13:22:11,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:11,074 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2780 transitions. [2023-12-25 13:22:11,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:11,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2780 transitions. [2023-12-25 13:22:11,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:11,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:11,078 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:11,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-25 13:22:11,078 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:11,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:11,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1785718787, now seen corresponding path program 1 times [2023-12-25 13:22:11,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:11,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993152045] [2023-12-25 13:22:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:11,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:12,110 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:12,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:12,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993152045] [2023-12-25 13:22:12,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993152045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:12,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:12,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:22:12,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293917874] [2023-12-25 13:22:12,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:12,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:22:12,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:12,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:22:12,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:22:12,111 INFO L87 Difference]: Start difference. First operand 1723 states and 2780 transitions. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:12,288 INFO L93 Difference]: Finished difference Result 2750 states and 4429 transitions. [2023-12-25 13:22:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:12,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:12,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:12,291 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:12,291 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:12,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:12,292 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1634 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:12,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 3840 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:22:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6072274881516588) internal successors, (2713), 1688 states have internal predecessors, (2713), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2779 transitions. [2023-12-25 13:22:12,329 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2779 transitions. Word has length 504 [2023-12-25 13:22:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:12,329 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2779 transitions. [2023-12-25 13:22:12,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:12,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2779 transitions. [2023-12-25 13:22:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:12,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:12,333 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:12,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-25 13:22:12,333 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:12,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:12,333 INFO L85 PathProgramCache]: Analyzing trace with hash 90764031, now seen corresponding path program 1 times [2023-12-25 13:22:12,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:12,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118744819] [2023-12-25 13:22:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:12,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:13,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118744819] [2023-12-25 13:22:13,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118744819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:13,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:13,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321288863] [2023-12-25 13:22:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:13,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:13,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:13,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:13,313 INFO L87 Difference]: Start difference. First operand 1723 states and 2779 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:13,529 INFO L93 Difference]: Finished difference Result 2750 states and 4427 transitions. [2023-12-25 13:22:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:13,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:13,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:13,532 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:13,532 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:13,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:13,533 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 1753 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:13,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 3850 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:13,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.6066350710900474) internal successors, (2712), 1688 states have internal predecessors, (2712), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:13,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2778 transitions. [2023-12-25 13:22:13,569 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2778 transitions. Word has length 504 [2023-12-25 13:22:13,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:13,570 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2778 transitions. [2023-12-25 13:22:13,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:13,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2778 transitions. [2023-12-25 13:22:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:13,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:13,573 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:13,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-25 13:22:13,573 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:13,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:13,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1657521981, now seen corresponding path program 1 times [2023-12-25 13:22:13,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:13,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114870355] [2023-12-25 13:22:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:13,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:14,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:14,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114870355] [2023-12-25 13:22:14,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114870355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:14,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:14,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:14,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65612166] [2023-12-25 13:22:14,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:14,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:14,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:14,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:14,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:14,552 INFO L87 Difference]: Start difference. First operand 1723 states and 2778 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:14,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:14,779 INFO L93 Difference]: Finished difference Result 2750 states and 4425 transitions. [2023-12-25 13:22:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:14,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:14,781 INFO L225 Difference]: With dead ends: 2750 [2023-12-25 13:22:14,781 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 13:22:14,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:14,782 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 3377 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:14,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 3840 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:14,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 13:22:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2023-12-25 13:22:14,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1688 states have (on average 1.606042654028436) internal successors, (2711), 1688 states have internal predecessors, (2711), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:14,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2777 transitions. [2023-12-25 13:22:14,817 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2777 transitions. Word has length 504 [2023-12-25 13:22:14,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:14,817 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2777 transitions. [2023-12-25 13:22:14,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:14,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2777 transitions. [2023-12-25 13:22:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 13:22:14,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:14,820 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:14,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-25 13:22:14,821 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:14,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1897761727, now seen corresponding path program 1 times [2023-12-25 13:22:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:14,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950483252] [2023-12-25 13:22:14,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:14,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:16,682 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:16,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:16,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950483252] [2023-12-25 13:22:16,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950483252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:16,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:16,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:16,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376697562] [2023-12-25 13:22:16,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:16,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:16,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:16,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:16,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:16,683 INFO L87 Difference]: Start difference. First operand 1723 states and 2777 transitions. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:16,805 INFO L93 Difference]: Finished difference Result 4357 states and 6930 transitions. [2023-12-25 13:22:16,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:22:16,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 504 [2023-12-25 13:22:16,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:16,809 INFO L225 Difference]: With dead ends: 4357 [2023-12-25 13:22:16,809 INFO L226 Difference]: Without dead ends: 3330 [2023-12-25 13:22:16,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:22:16,811 INFO L413 NwaCegarLoop]: 3659 mSDtfsCounter, 3457 mSDsluCounter, 8147 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3457 SdHoareTripleChecker+Valid, 11806 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:16,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3457 Valid, 11806 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:22:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2023-12-25 13:22:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 2016. [2023-12-25 13:22:16,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1981 states have (on average 1.5870772337203432) internal successors, (3144), 1981 states have internal predecessors, (3144), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 3210 transitions. [2023-12-25 13:22:16,861 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 3210 transitions. Word has length 504 [2023-12-25 13:22:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:16,862 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 3210 transitions. [2023-12-25 13:22:16,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 3210 transitions. [2023-12-25 13:22:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-25 13:22:16,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:16,865 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:16,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-25 13:22:16,865 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:16,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1294222273, now seen corresponding path program 1 times [2023-12-25 13:22:16,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:16,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989044677] [2023-12-25 13:22:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:16,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:17,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:17,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989044677] [2023-12-25 13:22:17,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989044677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:17,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:17,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:22:17,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248691654] [2023-12-25 13:22:17,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:17,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:22:17,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:17,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:22:17,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:17,515 INFO L87 Difference]: Start difference. First operand 2016 states and 3210 transitions. Second operand has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:17,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:17,626 INFO L93 Difference]: Finished difference Result 4384 states and 6971 transitions. [2023-12-25 13:22:17,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:22:17,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 505 [2023-12-25 13:22:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:17,628 INFO L225 Difference]: With dead ends: 4384 [2023-12-25 13:22:17,629 INFO L226 Difference]: Without dead ends: 3064 [2023-12-25 13:22:17,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:22:17,630 INFO L413 NwaCegarLoop]: 2215 mSDtfsCounter, 4899 mSDsluCounter, 6292 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4899 SdHoareTripleChecker+Valid, 8507 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:17,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4899 Valid, 8507 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:22:17,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2023-12-25 13:22:17,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2030. [2023-12-25 13:22:17,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2030 states, 1995 states have (on average 1.5869674185463658) internal successors, (3166), 1995 states have internal predecessors, (3166), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-25 13:22:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 3232 transitions. [2023-12-25 13:22:17,672 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 3232 transitions. Word has length 505 [2023-12-25 13:22:17,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:17,673 INFO L495 AbstractCegarLoop]: Abstraction has 2030 states and 3232 transitions. [2023-12-25 13:22:17,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:17,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 3232 transitions. [2023-12-25 13:22:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-25 13:22:17,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:17,676 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:17,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-25 13:22:17,676 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:17,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:17,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1923389441, now seen corresponding path program 1 times [2023-12-25 13:22:17,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:17,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131968727] [2023-12-25 13:22:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:17,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-25 13:22:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:20,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:20,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131968727] [2023-12-25 13:22:20,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131968727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:20,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:20,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-25 13:22:20,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065957758] [2023-12-25 13:22:20,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:20,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 13:22:20,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:20,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 13:22:20,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-25 13:22:20,181 INFO L87 Difference]: Start difference. First operand 2030 states and 3232 transitions. Second operand has 11 states, 11 states have (on average 43.0) internal successors, (473), 11 states have internal predecessors, (473), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:22:22,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:22,688 INFO L93 Difference]: Finished difference Result 6801 states and 10764 transitions. [2023-12-25 13:22:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 13:22:22,689 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 43.0) internal successors, (473), 11 states have internal predecessors, (473), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 505 [2023-12-25 13:22:22,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:22,694 INFO L225 Difference]: With dead ends: 6801 [2023-12-25 13:22:22,694 INFO L226 Difference]: Without dead ends: 5467 [2023-12-25 13:22:22,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:22:22,697 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 9917 mSDsluCounter, 14115 mSDsCounter, 0 mSdLazyCounter, 4174 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9928 SdHoareTripleChecker+Valid, 15880 SdHoareTripleChecker+Invalid, 4210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:22,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9928 Valid, 15880 Invalid, 4210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4174 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 13:22:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5467 states. [2023-12-25 13:22:22,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5467 to 2604. [2023-12-25 13:22:22,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2604 states, 2537 states have (on average 1.586125344895546) internal successors, (4024), 2537 states have internal predecessors, (4024), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 4154 transitions. [2023-12-25 13:22:22,833 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 4154 transitions. Word has length 505 [2023-12-25 13:22:22,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:22,833 INFO L495 AbstractCegarLoop]: Abstraction has 2604 states and 4154 transitions. [2023-12-25 13:22:22,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 43.0) internal successors, (473), 11 states have internal predecessors, (473), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:22:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 4154 transitions. [2023-12-25 13:22:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-12-25 13:22:22,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:22,837 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:22,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-25 13:22:22,838 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:22,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:22,838 INFO L85 PathProgramCache]: Analyzing trace with hash -884741855, now seen corresponding path program 1 times [2023-12-25 13:22:22,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:22,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989025192] [2023-12-25 13:22:22,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-25 13:22:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:25,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:25,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989025192] [2023-12-25 13:22:25,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989025192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:25,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:25,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:22:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148644886] [2023-12-25 13:22:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:25,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:22:25,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:22:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:22:25,484 INFO L87 Difference]: Start difference. First operand 2604 states and 4154 transitions. Second operand has 8 states, 8 states have (on average 59.25) internal successors, (474), 8 states have internal predecessors, (474), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:25,905 INFO L93 Difference]: Finished difference Result 6594 states and 10442 transitions. [2023-12-25 13:22:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 13:22:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 59.25) internal successors, (474), 8 states have internal predecessors, (474), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 506 [2023-12-25 13:22:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:25,910 INFO L225 Difference]: With dead ends: 6594 [2023-12-25 13:22:25,910 INFO L226 Difference]: Without dead ends: 5258 [2023-12-25 13:22:25,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-25 13:22:25,912 INFO L413 NwaCegarLoop]: 3665 mSDtfsCounter, 6808 mSDsluCounter, 13640 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6815 SdHoareTripleChecker+Valid, 17305 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:25,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6815 Valid, 17305 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:22:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5258 states. [2023-12-25 13:22:25,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5258 to 2605. [2023-12-25 13:22:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2538 states have (on average 1.5855003940110324) internal successors, (4024), 2538 states have internal predecessors, (4024), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:25,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 4154 transitions. [2023-12-25 13:22:25,991 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 4154 transitions. Word has length 506 [2023-12-25 13:22:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:25,992 INFO L495 AbstractCegarLoop]: Abstraction has 2605 states and 4154 transitions. [2023-12-25 13:22:25,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.25) internal successors, (474), 8 states have internal predecessors, (474), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 4154 transitions. [2023-12-25 13:22:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-12-25 13:22:25,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:25,996 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:25,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-25 13:22:25,996 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:25,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1608961351, now seen corresponding path program 1 times [2023-12-25 13:22:25,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:25,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698565456] [2023-12-25 13:22:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-25 13:22:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:28,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:28,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698565456] [2023-12-25 13:22:28,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698565456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:28,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:28,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:22:28,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076345443] [2023-12-25 13:22:28,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:28,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:22:28,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:28,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:22:28,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:28,215 INFO L87 Difference]: Start difference. First operand 2605 states and 4154 transitions. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:28,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:28,945 INFO L93 Difference]: Finished difference Result 3947 states and 6265 transitions. [2023-12-25 13:22:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 13:22:28,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 506 [2023-12-25 13:22:28,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:28,949 INFO L225 Difference]: With dead ends: 3947 [2023-12-25 13:22:28,949 INFO L226 Difference]: Without dead ends: 2613 [2023-12-25 13:22:28,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:22:28,950 INFO L413 NwaCegarLoop]: 1600 mSDtfsCounter, 1777 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 4781 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:28,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 4781 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 13:22:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2023-12-25 13:22:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2611. [2023-12-25 13:22:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2544 states have (on average 1.5841194968553458) internal successors, (4030), 2544 states have internal predecessors, (4030), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 4160 transitions. [2023-12-25 13:22:29,025 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 4160 transitions. Word has length 506 [2023-12-25 13:22:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:29,025 INFO L495 AbstractCegarLoop]: Abstraction has 2611 states and 4160 transitions. [2023-12-25 13:22:29,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 4160 transitions. [2023-12-25 13:22:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-12-25 13:22:29,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:29,029 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:29,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-25 13:22:29,030 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:29,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1640598473, now seen corresponding path program 1 times [2023-12-25 13:22:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:29,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693854323] [2023-12-25 13:22:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:29,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-25 13:22:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-25 13:22:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-25 13:22:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-25 13:22:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-25 13:22:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-25 13:22:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:30,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693854323] [2023-12-25 13:22:30,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693854323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:30,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:30,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:22:30,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89985245] [2023-12-25 13:22:30,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:30,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:22:30,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:30,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:22:30,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:22:30,908 INFO L87 Difference]: Start difference. First operand 2611 states and 4160 transitions. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:22:31,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:31,633 INFO L93 Difference]: Finished difference Result 5045 states and 7955 transitions. [2023-12-25 13:22:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:22:31,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 506 [2023-12-25 13:22:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:31,636 INFO L225 Difference]: With dead ends: 5045 [2023-12-25 13:22:31,636 INFO L226 Difference]: Without dead ends: 2697 [2023-12-25 13:22:31,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:22:31,638 INFO L413 NwaCegarLoop]: 2147 mSDtfsCounter, 3594 mSDsluCounter, 6354 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3594 SdHoareTripleChecker+Valid, 8501 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:31,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3594 Valid, 8501 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:22:31,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2023-12-25 13:22:31,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2643. [2023-12-25 13:22:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2576 states have (on average 1.5706521739130435) internal successors, (4046), 2576 states have internal predecessors, (4046), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:31,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 4176 transitions. [2023-12-25 13:22:31,719 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 4176 transitions. Word has length 506 [2023-12-25 13:22:31,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:31,719 INFO L495 AbstractCegarLoop]: Abstraction has 2643 states and 4176 transitions. [2023-12-25 13:22:31,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:22:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 4176 transitions. [2023-12-25 13:22:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2023-12-25 13:22:31,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:31,723 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:31,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-25 13:22:31,723 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:31,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash -297931807, now seen corresponding path program 1 times [2023-12-25 13:22:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:31,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364763686] [2023-12-25 13:22:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-25 13:22:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-25 13:22:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-25 13:22:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-25 13:22:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-25 13:22:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-25 13:22:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:33,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:33,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364763686] [2023-12-25 13:22:33,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364763686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:33,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:33,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:22:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506423646] [2023-12-25 13:22:33,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:33,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:22:33,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:22:33,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:22:33,524 INFO L87 Difference]: Start difference. First operand 2643 states and 4176 transitions. Second operand has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:34,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:34,413 INFO L93 Difference]: Finished difference Result 4120 states and 6491 transitions. [2023-12-25 13:22:34,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:22:34,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 507 [2023-12-25 13:22:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:34,417 INFO L225 Difference]: With dead ends: 4120 [2023-12-25 13:22:34,417 INFO L226 Difference]: Without dead ends: 2724 [2023-12-25 13:22:34,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:22:34,418 INFO L413 NwaCegarLoop]: 1649 mSDtfsCounter, 3445 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3445 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:34,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3445 Valid, 5383 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 13:22:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2023-12-25 13:22:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2649. [2023-12-25 13:22:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2582 states have (on average 1.5693261037955073) internal successors, (4052), 2582 states have internal predecessors, (4052), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 4182 transitions. [2023-12-25 13:22:34,493 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 4182 transitions. Word has length 507 [2023-12-25 13:22:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:34,494 INFO L495 AbstractCegarLoop]: Abstraction has 2649 states and 4182 transitions. [2023-12-25 13:22:34,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 4182 transitions. [2023-12-25 13:22:34,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2023-12-25 13:22:34,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:34,499 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:34,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-25 13:22:34,499 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:34,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:34,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1616063969, now seen corresponding path program 1 times [2023-12-25 13:22:34,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:34,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121114644] [2023-12-25 13:22:34,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:34,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-25 13:22:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-25 13:22:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-25 13:22:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-25 13:22:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-25 13:22:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-25 13:22:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:36,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:36,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121114644] [2023-12-25 13:22:36,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121114644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:36,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:36,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 13:22:36,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122554774] [2023-12-25 13:22:36,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:36,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:22:36,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:36,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:22:36,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:22:36,453 INFO L87 Difference]: Start difference. First operand 2649 states and 4182 transitions. Second operand has 9 states, 9 states have (on average 52.77777777777778) internal successors, (475), 9 states have internal predecessors, (475), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:39,448 INFO L93 Difference]: Finished difference Result 7319 states and 11509 transitions. [2023-12-25 13:22:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 13:22:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 52.77777777777778) internal successors, (475), 9 states have internal predecessors, (475), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 507 [2023-12-25 13:22:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:39,452 INFO L225 Difference]: With dead ends: 7319 [2023-12-25 13:22:39,452 INFO L226 Difference]: Without dead ends: 5732 [2023-12-25 13:22:39,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-25 13:22:39,453 INFO L413 NwaCegarLoop]: 2796 mSDtfsCounter, 6925 mSDsluCounter, 15444 mSDsCounter, 0 mSdLazyCounter, 5680 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6939 SdHoareTripleChecker+Valid, 18240 SdHoareTripleChecker+Invalid, 5700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:39,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6939 Valid, 18240 Invalid, 5700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5680 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 13:22:39,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5732 states. [2023-12-25 13:22:39,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5732 to 2701. [2023-12-25 13:22:39,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2634 states have (on average 1.5641609719058467) internal successors, (4120), 2634 states have internal predecessors, (4120), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 4250 transitions. [2023-12-25 13:22:39,533 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 4250 transitions. Word has length 507 [2023-12-25 13:22:39,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:39,533 INFO L495 AbstractCegarLoop]: Abstraction has 2701 states and 4250 transitions. [2023-12-25 13:22:39,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 52.77777777777778) internal successors, (475), 9 states have internal predecessors, (475), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 4250 transitions. [2023-12-25 13:22:39,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2023-12-25 13:22:39,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:39,537 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:39,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-25 13:22:39,537 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:39,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:39,537 INFO L85 PathProgramCache]: Analyzing trace with hash 325965649, now seen corresponding path program 1 times [2023-12-25 13:22:39,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:39,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670717160] [2023-12-25 13:22:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:39,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-25 13:22:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-25 13:22:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-25 13:22:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-25 13:22:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-25 13:22:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-25 13:22:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:41,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:41,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670717160] [2023-12-25 13:22:41,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670717160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:41,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:41,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 13:22:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183131571] [2023-12-25 13:22:41,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:41,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:22:41,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:22:41,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:22:41,852 INFO L87 Difference]: Start difference. First operand 2701 states and 4250 transitions. Second operand has 9 states, 9 states have (on average 52.888888888888886) internal successors, (476), 9 states have internal predecessors, (476), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:44,426 INFO L93 Difference]: Finished difference Result 7285 states and 11433 transitions. [2023-12-25 13:22:44,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 13:22:44,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 52.888888888888886) internal successors, (476), 9 states have internal predecessors, (476), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 508 [2023-12-25 13:22:44,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:44,433 INFO L225 Difference]: With dead ends: 7285 [2023-12-25 13:22:44,433 INFO L226 Difference]: Without dead ends: 5732 [2023-12-25 13:22:44,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-25 13:22:44,438 INFO L413 NwaCegarLoop]: 2840 mSDtfsCounter, 6629 mSDsluCounter, 15636 mSDsCounter, 0 mSdLazyCounter, 5744 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6641 SdHoareTripleChecker+Valid, 18476 SdHoareTripleChecker+Invalid, 5754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 5744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:44,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6641 Valid, 18476 Invalid, 5754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 5744 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 13:22:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5732 states. [2023-12-25 13:22:44,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5732 to 2709. [2023-12-25 13:22:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2642 states have (on average 1.562452687358062) internal successors, (4128), 2642 states have internal predecessors, (4128), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:44,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 4258 transitions. [2023-12-25 13:22:44,548 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 4258 transitions. Word has length 508 [2023-12-25 13:22:44,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:44,559 INFO L495 AbstractCegarLoop]: Abstraction has 2709 states and 4258 transitions. [2023-12-25 13:22:44,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 52.888888888888886) internal successors, (476), 9 states have internal predecessors, (476), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 4258 transitions. [2023-12-25 13:22:44,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2023-12-25 13:22:44,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:44,564 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:44,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-25 13:22:44,564 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:44,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash 209648211, now seen corresponding path program 1 times [2023-12-25 13:22:44,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:44,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096926750] [2023-12-25 13:22:44,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:44,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-25 13:22:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-25 13:22:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-25 13:22:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-25 13:22:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-25 13:22:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-25 13:22:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-25 13:22:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096926750] [2023-12-25 13:22:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096926750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:46,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:46,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:22:46,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179349591] [2023-12-25 13:22:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:46,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:22:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:46,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:22:46,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:22:46,217 INFO L87 Difference]: Start difference. First operand 2709 states and 4258 transitions. Second operand has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:46,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:46,856 INFO L93 Difference]: Finished difference Result 5701 states and 8841 transitions. [2023-12-25 13:22:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:22:46,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 508 [2023-12-25 13:22:46,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:46,860 INFO L225 Difference]: With dead ends: 5701 [2023-12-25 13:22:46,860 INFO L226 Difference]: Without dead ends: 2781 [2023-12-25 13:22:46,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:22:46,862 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 3736 mSDsluCounter, 6144 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 8210 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:46,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3736 Valid, 8210 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:22:46,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2023-12-25 13:22:46,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2741. [2023-12-25 13:22:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2674 states have (on average 1.549738219895288) internal successors, (4144), 2674 states have internal predecessors, (4144), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-25 13:22:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4274 transitions. [2023-12-25 13:22:46,992 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4274 transitions. Word has length 508 [2023-12-25 13:22:46,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:46,992 INFO L495 AbstractCegarLoop]: Abstraction has 2741 states and 4274 transitions. [2023-12-25 13:22:46,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4274 transitions. [2023-12-25 13:22:46,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2023-12-25 13:22:46,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:46,996 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:46,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-25 13:22:46,996 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:46,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash 942182567, now seen corresponding path program 1 times [2023-12-25 13:22:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:46,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809356785] [2023-12-25 13:22:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:46,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:22:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:22:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:22:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:22:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:22:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:22:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-25 13:22:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:50,375 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:50,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:50,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809356785] [2023-12-25 13:22:50,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809356785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:50,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:50,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:22:50,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851681165] [2023-12-25 13:22:50,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:50,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:22:50,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:50,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:22:50,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:22:50,377 INFO L87 Difference]: Start difference. First operand 2741 states and 4274 transitions. Second operand has 8 states, 8 states have (on average 59.625) internal successors, (477), 8 states have internal predecessors, (477), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:22:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:50,689 INFO L93 Difference]: Finished difference Result 6819 states and 10663 transitions. [2023-12-25 13:22:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:22:50,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 59.625) internal successors, (477), 8 states have internal predecessors, (477), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 509 [2023-12-25 13:22:50,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:50,695 INFO L225 Difference]: With dead ends: 6819 [2023-12-25 13:22:50,695 INFO L226 Difference]: Without dead ends: 5462 [2023-12-25 13:22:50,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:22:50,699 INFO L413 NwaCegarLoop]: 3635 mSDtfsCounter, 6627 mSDsluCounter, 12548 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6638 SdHoareTripleChecker+Valid, 16183 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:50,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6638 Valid, 16183 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:22:50,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5462 states. [2023-12-25 13:22:50,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5462 to 2871. [2023-12-25 13:22:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2794 states have (on average 1.5458124552612742) internal successors, (4319), 2794 states have internal predecessors, (4319), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-25 13:22:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 4469 transitions. [2023-12-25 13:22:50,797 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 4469 transitions. Word has length 509 [2023-12-25 13:22:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:50,798 INFO L495 AbstractCegarLoop]: Abstraction has 2871 states and 4469 transitions. [2023-12-25 13:22:50,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.625) internal successors, (477), 8 states have internal predecessors, (477), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 13:22:50,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 4469 transitions. [2023-12-25 13:22:50,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2023-12-25 13:22:50,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:50,801 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:50,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-25 13:22:50,802 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:50,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash 799212365, now seen corresponding path program 1 times [2023-12-25 13:22:50,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:50,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657321217] [2023-12-25 13:22:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:22:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:22:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:22:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:22:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:22:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:22:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-25 13:22:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:52,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:52,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657321217] [2023-12-25 13:22:52,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657321217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:52,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:52,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:22:52,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689969115] [2023-12-25 13:22:52,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:52,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:22:52,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:52,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:22:52,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:22:52,389 INFO L87 Difference]: Start difference. First operand 2871 states and 4469 transitions. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:53,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:53,431 INFO L93 Difference]: Finished difference Result 4334 states and 6759 transitions. [2023-12-25 13:22:53,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:22:53,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 509 [2023-12-25 13:22:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:53,435 INFO L225 Difference]: With dead ends: 4334 [2023-12-25 13:22:53,435 INFO L226 Difference]: Without dead ends: 2978 [2023-12-25 13:22:53,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:22:53,437 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 5369 mSDsluCounter, 3799 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5369 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:53,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5369 Valid, 5472 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 13:22:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2023-12-25 13:22:53,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2867. [2023-12-25 13:22:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 2790 states have (on average 1.5455197132616487) internal successors, (4312), 2790 states have internal predecessors, (4312), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-25 13:22:53,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 4462 transitions. [2023-12-25 13:22:53,525 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 4462 transitions. Word has length 509 [2023-12-25 13:22:53,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:53,525 INFO L495 AbstractCegarLoop]: Abstraction has 2867 states and 4462 transitions. [2023-12-25 13:22:53,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:53,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 4462 transitions. [2023-12-25 13:22:53,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-12-25 13:22:53,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:53,529 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:53,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-25 13:22:53,529 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:53,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:53,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1208324871, now seen corresponding path program 1 times [2023-12-25 13:22:53,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:53,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12333180] [2023-12-25 13:22:53,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:53,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:22:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:22:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:22:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-25 13:22:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-25 13:22:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-25 13:22:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:22:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:54,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:54,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12333180] [2023-12-25 13:22:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12333180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:54,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:22:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954343109] [2023-12-25 13:22:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:22:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:22:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:22:54,082 INFO L87 Difference]: Start difference. First operand 2867 states and 4462 transitions. Second operand has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:54,210 INFO L93 Difference]: Finished difference Result 4496 states and 6995 transitions. [2023-12-25 13:22:54,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:54,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 510 [2023-12-25 13:22:54,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:54,213 INFO L225 Difference]: With dead ends: 4496 [2023-12-25 13:22:54,213 INFO L226 Difference]: Without dead ends: 2903 [2023-12-25 13:22:54,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:22:54,214 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 1 mSDsluCounter, 4021 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6045 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:54,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6045 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:22:54,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2023-12-25 13:22:54,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2891. [2023-12-25 13:22:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2814 states have (on average 1.540867093105899) internal successors, (4336), 2814 states have internal predecessors, (4336), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-25 13:22:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 4486 transitions. [2023-12-25 13:22:54,303 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 4486 transitions. Word has length 510 [2023-12-25 13:22:54,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:54,303 INFO L495 AbstractCegarLoop]: Abstraction has 2891 states and 4486 transitions. [2023-12-25 13:22:54,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 13:22:54,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 4486 transitions. [2023-12-25 13:22:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-12-25 13:22:54,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:54,307 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:54,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-25 13:22:54,307 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:54,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash 962421847, now seen corresponding path program 1 times [2023-12-25 13:22:54,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:54,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651080911] [2023-12-25 13:22:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:54,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:22:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:22:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:22:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:22:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:22:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:22:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:22:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:22:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:22:57,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:22:57,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651080911] [2023-12-25 13:22:57,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651080911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:22:57,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:22:57,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:22:57,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175395802] [2023-12-25 13:22:57,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:22:57,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:22:57,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:22:57,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:22:57,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:22:57,308 INFO L87 Difference]: Start difference. First operand 2891 states and 4486 transitions. Second operand has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:22:57,931 INFO L93 Difference]: Finished difference Result 4249 states and 6611 transitions. [2023-12-25 13:22:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:22:57,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 510 [2023-12-25 13:22:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:22:57,934 INFO L225 Difference]: With dead ends: 4249 [2023-12-25 13:22:57,934 INFO L226 Difference]: Without dead ends: 2891 [2023-12-25 13:22:57,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:22:57,935 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1822 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:22:57,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 3186 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:22:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2023-12-25 13:22:58,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 2891. [2023-12-25 13:22:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2814 states have (on average 1.5401563610518834) internal successors, (4334), 2814 states have internal predecessors, (4334), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-25 13:22:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 4484 transitions. [2023-12-25 13:22:58,024 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 4484 transitions. Word has length 510 [2023-12-25 13:22:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:22:58,024 INFO L495 AbstractCegarLoop]: Abstraction has 2891 states and 4484 transitions. [2023-12-25 13:22:58,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:22:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 4484 transitions. [2023-12-25 13:22:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2023-12-25 13:22:58,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:22:58,028 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:22:58,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-25 13:22:58,028 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:22:58,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:22:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1047704075, now seen corresponding path program 1 times [2023-12-25 13:22:58,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:22:58,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036098835] [2023-12-25 13:22:58,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:22:58,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:22:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:23:00,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:00,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036098835] [2023-12-25 13:23:00,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036098835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:00,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:00,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 13:23:00,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066711134] [2023-12-25 13:23:00,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:00,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 13:23:00,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:00,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 13:23:00,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:23:00,498 INFO L87 Difference]: Start difference. First operand 2891 states and 4484 transitions. Second operand has 10 states, 10 states have (on average 47.9) internal successors, (479), 10 states have internal predecessors, (479), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:01,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:01,761 INFO L93 Difference]: Finished difference Result 14237 states and 21973 transitions. [2023-12-25 13:23:01,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 13:23:01,762 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 47.9) internal successors, (479), 10 states have internal predecessors, (479), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 511 [2023-12-25 13:23:01,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:01,775 INFO L225 Difference]: With dead ends: 14237 [2023-12-25 13:23:01,775 INFO L226 Difference]: Without dead ends: 12879 [2023-12-25 13:23:01,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2023-12-25 13:23:01,780 INFO L413 NwaCegarLoop]: 3607 mSDtfsCounter, 13158 mSDsluCounter, 18674 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13172 SdHoareTripleChecker+Valid, 22281 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:01,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13172 Valid, 22281 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 13:23:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12879 states. [2023-12-25 13:23:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12879 to 4381. [2023-12-25 13:23:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4229 states have (on average 1.5249467959328447) internal successors, (6449), 4229 states have internal predecessors, (6449), 150 states have call successors, (150), 1 states have call predecessors, (150), 1 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-25 13:23:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 6749 transitions. [2023-12-25 13:23:02,056 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 6749 transitions. Word has length 511 [2023-12-25 13:23:02,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:02,057 INFO L495 AbstractCegarLoop]: Abstraction has 4381 states and 6749 transitions. [2023-12-25 13:23:02,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 47.9) internal successors, (479), 10 states have internal predecessors, (479), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:02,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 6749 transitions. [2023-12-25 13:23:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2023-12-25 13:23:02,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:02,062 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:02,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-25 13:23:02,063 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:02,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash 734756507, now seen corresponding path program 1 times [2023-12-25 13:23:02,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:02,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773604564] [2023-12-25 13:23:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:02,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:05,229 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:23:05,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:05,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773604564] [2023-12-25 13:23:05,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773604564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:05,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:05,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:23:05,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483670672] [2023-12-25 13:23:05,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:05,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:23:05,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:05,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:23:05,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:23:05,231 INFO L87 Difference]: Start difference. First operand 4381 states and 6749 transitions. Second operand has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:05,427 INFO L93 Difference]: Finished difference Result 4385 states and 6753 transitions. [2023-12-25 13:23:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:05,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 511 [2023-12-25 13:23:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:05,432 INFO L225 Difference]: With dead ends: 4385 [2023-12-25 13:23:05,432 INFO L226 Difference]: Without dead ends: 4383 [2023-12-25 13:23:05,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:23:05,433 INFO L413 NwaCegarLoop]: 2023 mSDtfsCounter, 1 mSDsluCounter, 4041 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6064 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:05,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6064 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:23:05,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4383 states. [2023-12-25 13:23:05,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4383 to 4383. [2023-12-25 13:23:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 4231 states have (on average 1.5246986528007562) internal successors, (6451), 4231 states have internal predecessors, (6451), 150 states have call successors, (150), 1 states have call predecessors, (150), 1 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-25 13:23:05,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 6751 transitions. [2023-12-25 13:23:05,630 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 6751 transitions. Word has length 511 [2023-12-25 13:23:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:05,631 INFO L495 AbstractCegarLoop]: Abstraction has 4383 states and 6751 transitions. [2023-12-25 13:23:05,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:05,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 6751 transitions. [2023-12-25 13:23:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2023-12-25 13:23:05,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:05,636 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:05,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-12-25 13:23:05,636 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:05,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:05,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1304342743, now seen corresponding path program 1 times [2023-12-25 13:23:05,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:05,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794258994] [2023-12-25 13:23:05,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:05,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:23:06,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:06,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794258994] [2023-12-25 13:23:06,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794258994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:06,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:06,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:23:06,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329103277] [2023-12-25 13:23:06,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:06,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:23:06,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:06,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:23:06,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:23:06,236 INFO L87 Difference]: Start difference. First operand 4383 states and 6751 transitions. Second operand has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:06,438 INFO L93 Difference]: Finished difference Result 5746 states and 8880 transitions. [2023-12-25 13:23:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:06,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 512 [2023-12-25 13:23:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:06,442 INFO L225 Difference]: With dead ends: 5746 [2023-12-25 13:23:06,443 INFO L226 Difference]: Without dead ends: 4386 [2023-12-25 13:23:06,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:23:06,444 INFO L413 NwaCegarLoop]: 2023 mSDtfsCounter, 1 mSDsluCounter, 4039 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6062 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:06,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6062 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:23:06,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2023-12-25 13:23:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4385. [2023-12-25 13:23:06,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4385 states, 4233 states have (on average 1.524450744153083) internal successors, (6453), 4233 states have internal predecessors, (6453), 150 states have call successors, (150), 1 states have call predecessors, (150), 1 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-25 13:23:06,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 6753 transitions. [2023-12-25 13:23:06,645 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 6753 transitions. Word has length 512 [2023-12-25 13:23:06,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:06,645 INFO L495 AbstractCegarLoop]: Abstraction has 4385 states and 6753 transitions. [2023-12-25 13:23:06,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:06,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 6753 transitions. [2023-12-25 13:23:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2023-12-25 13:23:06,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:06,651 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:06,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-12-25 13:23:06,651 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:06,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:06,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1569489461, now seen corresponding path program 1 times [2023-12-25 13:23:06,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:06,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148081195] [2023-12-25 13:23:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:06,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 13:23:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148081195] [2023-12-25 13:23:09,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148081195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:09,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:09,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:23:09,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237354693] [2023-12-25 13:23:09,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:09,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:23:09,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:09,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:23:09,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:23:09,048 INFO L87 Difference]: Start difference. First operand 4385 states and 6753 transitions. Second operand has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:09,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:09,514 INFO L93 Difference]: Finished difference Result 8561 states and 13280 transitions. [2023-12-25 13:23:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:23:09,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 513 [2023-12-25 13:23:09,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:09,520 INFO L225 Difference]: With dead ends: 8561 [2023-12-25 13:23:09,520 INFO L226 Difference]: Without dead ends: 7199 [2023-12-25 13:23:09,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-25 13:23:09,522 INFO L413 NwaCegarLoop]: 2621 mSDtfsCounter, 10782 mSDsluCounter, 8794 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10789 SdHoareTripleChecker+Valid, 11415 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:09,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10789 Valid, 11415 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:09,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7199 states. [2023-12-25 13:23:09,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7199 to 5131. [2023-12-25 13:23:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5181013676588897) internal successors, (7548), 4972 states have internal predecessors, (7548), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7862 transitions. [2023-12-25 13:23:09,742 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7862 transitions. Word has length 513 [2023-12-25 13:23:09,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:09,742 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7862 transitions. [2023-12-25 13:23:09,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 13:23:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7862 transitions. [2023-12-25 13:23:09,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1265 [2023-12-25 13:23:09,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:09,756 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:09,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-25 13:23:09,756 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:09,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:09,757 INFO L85 PathProgramCache]: Analyzing trace with hash 206131545, now seen corresponding path program 1 times [2023-12-25 13:23:09,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:09,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027560605] [2023-12-25 13:23:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:09,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 921 [2023-12-25 13:23:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2023-12-25 13:23:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2023-12-25 13:23:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2023-12-25 13:23:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 982 [2023-12-25 13:23:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 994 [2023-12-25 13:23:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1007 [2023-12-25 13:23:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:12,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:12,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027560605] [2023-12-25 13:23:12,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027560605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:12,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:12,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:12,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105005235] [2023-12-25 13:23:12,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:12,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:12,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:12,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:12,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:12,404 INFO L87 Difference]: Start difference. First operand 5131 states and 7862 transitions. Second operand has 5 states, 5 states have (on average 239.4) internal successors, (1197), 5 states have internal predecessors, (1197), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:12,798 INFO L93 Difference]: Finished difference Result 6493 states and 9989 transitions. [2023-12-25 13:23:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:12,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 239.4) internal successors, (1197), 5 states have internal predecessors, (1197), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1264 [2023-12-25 13:23:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:12,806 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:12,806 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:12,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:12,807 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 3179 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:12,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 3832 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:13,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5179002413515688) internal successors, (7547), 4972 states have internal predecessors, (7547), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7861 transitions. [2023-12-25 13:23:13,024 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7861 transitions. Word has length 1264 [2023-12-25 13:23:13,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:13,024 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7861 transitions. [2023-12-25 13:23:13,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 239.4) internal successors, (1197), 5 states have internal predecessors, (1197), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:13,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7861 transitions. [2023-12-25 13:23:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1266 [2023-12-25 13:23:13,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:13,038 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:13,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-12-25 13:23:13,039 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:13,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash 226818313, now seen corresponding path program 1 times [2023-12-25 13:23:13,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:13,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988104501] [2023-12-25 13:23:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:13,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2023-12-25 13:23:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 937 [2023-12-25 13:23:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2023-12-25 13:23:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 972 [2023-12-25 13:23:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 983 [2023-12-25 13:23:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2023-12-25 13:23:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1008 [2023-12-25 13:23:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:14,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:14,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988104501] [2023-12-25 13:23:14,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988104501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:14,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:14,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:14,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535697648] [2023-12-25 13:23:14,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:14,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:14,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:14,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:14,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:14,930 INFO L87 Difference]: Start difference. First operand 5131 states and 7861 transitions. Second operand has 5 states, 5 states have (on average 239.6) internal successors, (1198), 5 states have internal predecessors, (1198), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:15,297 INFO L93 Difference]: Finished difference Result 6493 states and 9987 transitions. [2023-12-25 13:23:15,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 239.6) internal successors, (1198), 5 states have internal predecessors, (1198), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1265 [2023-12-25 13:23:15,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:15,302 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:15,302 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:15,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:15,304 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 3163 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3170 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:15,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3170 Valid, 3832 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:15,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5176991150442478) internal successors, (7546), 4972 states have internal predecessors, (7546), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:15,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7860 transitions. [2023-12-25 13:23:15,553 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7860 transitions. Word has length 1265 [2023-12-25 13:23:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:15,553 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7860 transitions. [2023-12-25 13:23:15,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 239.6) internal successors, (1198), 5 states have internal predecessors, (1198), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7860 transitions. [2023-12-25 13:23:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1267 [2023-12-25 13:23:15,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:15,568 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:15,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-12-25 13:23:15,568 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:15,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:15,568 INFO L85 PathProgramCache]: Analyzing trace with hash 27121929, now seen corresponding path program 1 times [2023-12-25 13:23:15,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:15,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407470377] [2023-12-25 13:23:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:15,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 923 [2023-12-25 13:23:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 938 [2023-12-25 13:23:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 957 [2023-12-25 13:23:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2023-12-25 13:23:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2023-12-25 13:23:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 996 [2023-12-25 13:23:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1009 [2023-12-25 13:23:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:17,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407470377] [2023-12-25 13:23:17,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407470377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:17,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:17,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:17,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687174732] [2023-12-25 13:23:17,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:17,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:17,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:17,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:17,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:17,546 INFO L87 Difference]: Start difference. First operand 5131 states and 7860 transitions. Second operand has 5 states, 5 states have (on average 239.8) internal successors, (1199), 5 states have internal predecessors, (1199), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:17,890 INFO L93 Difference]: Finished difference Result 6493 states and 9985 transitions. [2023-12-25 13:23:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:17,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 239.8) internal successors, (1199), 5 states have internal predecessors, (1199), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1266 [2023-12-25 13:23:17,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:17,895 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:17,895 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:17,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:17,897 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 3147 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:17,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3154 Valid, 3832 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:18,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5174979887369269) internal successors, (7545), 4972 states have internal predecessors, (7545), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7859 transitions. [2023-12-25 13:23:18,158 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7859 transitions. Word has length 1266 [2023-12-25 13:23:18,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:18,159 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7859 transitions. [2023-12-25 13:23:18,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 239.8) internal successors, (1199), 5 states have internal predecessors, (1199), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:18,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7859 transitions. [2023-12-25 13:23:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1268 [2023-12-25 13:23:18,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:18,173 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:18,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-25 13:23:18,173 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:18,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1954498629, now seen corresponding path program 1 times [2023-12-25 13:23:18,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:18,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994919381] [2023-12-25 13:23:18,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:18,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 924 [2023-12-25 13:23:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2023-12-25 13:23:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2023-12-25 13:23:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2023-12-25 13:23:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:23:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2023-12-25 13:23:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1010 [2023-12-25 13:23:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:20,379 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:20,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:20,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994919381] [2023-12-25 13:23:20,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994919381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:20,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:20,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:20,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861884778] [2023-12-25 13:23:20,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:20,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:20,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:20,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:20,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:20,382 INFO L87 Difference]: Start difference. First operand 5131 states and 7859 transitions. Second operand has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:20,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:20,719 INFO L93 Difference]: Finished difference Result 6493 states and 9983 transitions. [2023-12-25 13:23:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:20,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1267 [2023-12-25 13:23:20,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:20,724 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:20,724 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:20,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:20,726 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 3131 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:20,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 3832 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:20,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:21,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:21,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5172968624296057) internal successors, (7544), 4972 states have internal predecessors, (7544), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7858 transitions. [2023-12-25 13:23:21,013 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7858 transitions. Word has length 1267 [2023-12-25 13:23:21,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:21,013 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7858 transitions. [2023-12-25 13:23:21,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:21,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7858 transitions. [2023-12-25 13:23:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1269 [2023-12-25 13:23:21,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:21,031 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:21,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-12-25 13:23:21,031 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:21,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash -797779077, now seen corresponding path program 1 times [2023-12-25 13:23:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:21,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940760418] [2023-12-25 13:23:21,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:21,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 925 [2023-12-25 13:23:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2023-12-25 13:23:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 959 [2023-12-25 13:23:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2023-12-25 13:23:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:23:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 998 [2023-12-25 13:23:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1011 [2023-12-25 13:23:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:23,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940760418] [2023-12-25 13:23:23,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940760418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:23,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:23,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:23,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450507159] [2023-12-25 13:23:23,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:23,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:23,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:23,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:23,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:23,114 INFO L87 Difference]: Start difference. First operand 5131 states and 7858 transitions. Second operand has 5 states, 5 states have (on average 240.2) internal successors, (1201), 5 states have internal predecessors, (1201), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:23,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:23,509 INFO L93 Difference]: Finished difference Result 6493 states and 9981 transitions. [2023-12-25 13:23:23,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:23,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 240.2) internal successors, (1201), 5 states have internal predecessors, (1201), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1268 [2023-12-25 13:23:23,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:23,515 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:23,515 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:23,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:23,517 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 3115 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:23,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3122 Valid, 3832 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5170957361222848) internal successors, (7543), 4972 states have internal predecessors, (7543), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7857 transitions. [2023-12-25 13:23:23,762 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7857 transitions. Word has length 1268 [2023-12-25 13:23:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:23,762 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7857 transitions. [2023-12-25 13:23:23,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.2) internal successors, (1201), 5 states have internal predecessors, (1201), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7857 transitions. [2023-12-25 13:23:23,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1270 [2023-12-25 13:23:23,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:23,776 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:23,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-12-25 13:23:23,776 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:23,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:23,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2132889873, now seen corresponding path program 1 times [2023-12-25 13:23:23,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:23,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419207399] [2023-12-25 13:23:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:23,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 926 [2023-12-25 13:23:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 941 [2023-12-25 13:23:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 960 [2023-12-25 13:23:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 976 [2023-12-25 13:23:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2023-12-25 13:23:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 999 [2023-12-25 13:23:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:23:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:25,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:25,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419207399] [2023-12-25 13:23:25,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419207399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:25,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:25,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:25,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742458384] [2023-12-25 13:23:25,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:25,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:25,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:25,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:25,853 INFO L87 Difference]: Start difference. First operand 5131 states and 7857 transitions. Second operand has 5 states, 5 states have (on average 240.4) internal successors, (1202), 5 states have internal predecessors, (1202), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:26,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:26,268 INFO L93 Difference]: Finished difference Result 6493 states and 9979 transitions. [2023-12-25 13:23:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:26,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 240.4) internal successors, (1202), 5 states have internal predecessors, (1202), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1269 [2023-12-25 13:23:26,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:26,272 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:26,272 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:26,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:26,274 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 1684 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:26,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 3842 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:26,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5168946098149638) internal successors, (7542), 4972 states have internal predecessors, (7542), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7856 transitions. [2023-12-25 13:23:26,489 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7856 transitions. Word has length 1269 [2023-12-25 13:23:26,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:26,490 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7856 transitions. [2023-12-25 13:23:26,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.4) internal successors, (1202), 5 states have internal predecessors, (1202), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:26,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7856 transitions. [2023-12-25 13:23:26,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1271 [2023-12-25 13:23:26,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:26,503 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:26,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-12-25 13:23:26,504 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:26,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:26,504 INFO L85 PathProgramCache]: Analyzing trace with hash 288025515, now seen corresponding path program 1 times [2023-12-25 13:23:26,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:26,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932971901] [2023-12-25 13:23:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:26,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 927 [2023-12-25 13:23:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 942 [2023-12-25 13:23:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 961 [2023-12-25 13:23:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 977 [2023-12-25 13:23:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2023-12-25 13:23:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1000 [2023-12-25 13:23:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:23:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:28,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:28,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932971901] [2023-12-25 13:23:28,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932971901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:28,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:28,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:28,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110540986] [2023-12-25 13:23:28,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:28,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:28,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:28,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:28,404 INFO L87 Difference]: Start difference. First operand 5131 states and 7856 transitions. Second operand has 5 states, 5 states have (on average 240.6) internal successors, (1203), 5 states have internal predecessors, (1203), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:28,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:28,768 INFO L93 Difference]: Finished difference Result 6493 states and 9977 transitions. [2023-12-25 13:23:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:28,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 240.6) internal successors, (1203), 5 states have internal predecessors, (1203), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1270 [2023-12-25 13:23:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:28,773 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:28,773 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:28,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:28,775 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 3083 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3090 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:28,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3090 Valid, 3832 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:29,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5166934835076429) internal successors, (7541), 4972 states have internal predecessors, (7541), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7855 transitions. [2023-12-25 13:23:29,079 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7855 transitions. Word has length 1270 [2023-12-25 13:23:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:29,080 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7855 transitions. [2023-12-25 13:23:29,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.6) internal successors, (1203), 5 states have internal predecessors, (1203), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:29,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7855 transitions. [2023-12-25 13:23:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1272 [2023-12-25 13:23:29,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:29,097 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:29,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-12-25 13:23:29,097 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:29,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash -569607391, now seen corresponding path program 1 times [2023-12-25 13:23:29,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564643872] [2023-12-25 13:23:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2023-12-25 13:23:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2023-12-25 13:23:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2023-12-25 13:23:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 978 [2023-12-25 13:23:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 989 [2023-12-25 13:23:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:23:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1014 [2023-12-25 13:23:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:31,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:31,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564643872] [2023-12-25 13:23:31,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564643872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:31,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:31,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:31,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496887512] [2023-12-25 13:23:31,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:31,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:31,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:31,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:31,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:31,112 INFO L87 Difference]: Start difference. First operand 5131 states and 7855 transitions. Second operand has 5 states, 5 states have (on average 240.8) internal successors, (1204), 5 states have internal predecessors, (1204), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:31,472 INFO L93 Difference]: Finished difference Result 6493 states and 9975 transitions. [2023-12-25 13:23:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:31,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 240.8) internal successors, (1204), 5 states have internal predecessors, (1204), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1271 [2023-12-25 13:23:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:31,477 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:31,477 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:31,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:31,479 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 3067 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3074 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:31,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3074 Valid, 3832 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:31,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:31,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5164923572003217) internal successors, (7540), 4972 states have internal predecessors, (7540), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7854 transitions. [2023-12-25 13:23:31,698 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7854 transitions. Word has length 1271 [2023-12-25 13:23:31,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:31,698 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7854 transitions. [2023-12-25 13:23:31,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.8) internal successors, (1204), 5 states have internal predecessors, (1204), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:31,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7854 transitions. [2023-12-25 13:23:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1273 [2023-12-25 13:23:31,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:31,712 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:31,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-12-25 13:23:31,712 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:31,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1949105309, now seen corresponding path program 1 times [2023-12-25 13:23:31,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135279389] [2023-12-25 13:23:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:31,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 929 [2023-12-25 13:23:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 944 [2023-12-25 13:23:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2023-12-25 13:23:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 979 [2023-12-25 13:23:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 990 [2023-12-25 13:23:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:23:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-12-25 13:23:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:33,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:33,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135279389] [2023-12-25 13:23:33,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135279389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:33,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:33,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:33,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689736259] [2023-12-25 13:23:33,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:33,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:33,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:33,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:33,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:33,643 INFO L87 Difference]: Start difference. First operand 5131 states and 7854 transitions. Second operand has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:33,954 INFO L93 Difference]: Finished difference Result 6493 states and 9973 transitions. [2023-12-25 13:23:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:33,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1272 [2023-12-25 13:23:33,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:33,959 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:33,959 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:33,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:33,961 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 3039 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:33,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 3912 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:33,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5162912308930008) internal successors, (7539), 4972 states have internal predecessors, (7539), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7853 transitions. [2023-12-25 13:23:34,215 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7853 transitions. Word has length 1272 [2023-12-25 13:23:34,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:34,215 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7853 transitions. [2023-12-25 13:23:34,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7853 transitions. [2023-12-25 13:23:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1274 [2023-12-25 13:23:34,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:34,229 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:34,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-25 13:23:34,229 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:34,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:34,229 INFO L85 PathProgramCache]: Analyzing trace with hash -343439915, now seen corresponding path program 1 times [2023-12-25 13:23:34,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:34,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150955935] [2023-12-25 13:23:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:34,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2023-12-25 13:23:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 945 [2023-12-25 13:23:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2023-12-25 13:23:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 980 [2023-12-25 13:23:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 991 [2023-12-25 13:23:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2023-12-25 13:23:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2023-12-25 13:23:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:36,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:36,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150955935] [2023-12-25 13:23:36,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150955935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:36,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:36,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:36,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840328014] [2023-12-25 13:23:36,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:36,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:36,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:36,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:36,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:36,220 INFO L87 Difference]: Start difference. First operand 5131 states and 7853 transitions. Second operand has 5 states, 5 states have (on average 241.2) internal successors, (1206), 5 states have internal predecessors, (1206), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:36,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:36,530 INFO L93 Difference]: Finished difference Result 6493 states and 9971 transitions. [2023-12-25 13:23:36,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:36,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 241.2) internal successors, (1206), 5 states have internal predecessors, (1206), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1273 [2023-12-25 13:23:36,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:36,535 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:36,535 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:36,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:36,537 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 3023 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3030 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:36,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3030 Valid, 3912 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:36,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5160901045856798) internal successors, (7538), 4972 states have internal predecessors, (7538), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7852 transitions. [2023-12-25 13:23:36,760 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7852 transitions. Word has length 1273 [2023-12-25 13:23:36,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:36,761 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7852 transitions. [2023-12-25 13:23:36,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 241.2) internal successors, (1206), 5 states have internal predecessors, (1206), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:36,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7852 transitions. [2023-12-25 13:23:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2023-12-25 13:23:36,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:36,775 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:36,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-12-25 13:23:36,775 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:36,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1028248909, now seen corresponding path program 1 times [2023-12-25 13:23:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:36,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743766995] [2023-12-25 13:23:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:36,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2023-12-25 13:23:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2023-12-25 13:23:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2023-12-25 13:23:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 981 [2023-12-25 13:23:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 992 [2023-12-25 13:23:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2023-12-25 13:23:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2023-12-25 13:23:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:38,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:38,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743766995] [2023-12-25 13:23:38,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743766995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:38,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:38,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:38,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799048501] [2023-12-25 13:23:38,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:38,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:38,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:38,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:38,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:38,764 INFO L87 Difference]: Start difference. First operand 5131 states and 7852 transitions. Second operand has 5 states, 5 states have (on average 241.4) internal successors, (1207), 5 states have internal predecessors, (1207), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:39,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:39,075 INFO L93 Difference]: Finished difference Result 6493 states and 9969 transitions. [2023-12-25 13:23:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:39,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 241.4) internal successors, (1207), 5 states have internal predecessors, (1207), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1274 [2023-12-25 13:23:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:39,080 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:39,080 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:39,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:39,082 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 1632 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:39,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 3922 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:39,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.515888978278359) internal successors, (7537), 4972 states have internal predecessors, (7537), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7851 transitions. [2023-12-25 13:23:39,304 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7851 transitions. Word has length 1274 [2023-12-25 13:23:39,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:39,305 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7851 transitions. [2023-12-25 13:23:39,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 241.4) internal successors, (1207), 5 states have internal predecessors, (1207), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:39,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7851 transitions. [2023-12-25 13:23:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1276 [2023-12-25 13:23:39,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:39,319 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:39,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-12-25 13:23:39,319 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:39,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash -457171065, now seen corresponding path program 1 times [2023-12-25 13:23:39,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:39,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705660697] [2023-12-25 13:23:39,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:39,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2023-12-25 13:23:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2023-12-25 13:23:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:23:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 982 [2023-12-25 13:23:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 993 [2023-12-25 13:23:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1005 [2023-12-25 13:23:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1018 [2023-12-25 13:23:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:41,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:41,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705660697] [2023-12-25 13:23:41,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705660697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:41,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:41,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:41,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571438185] [2023-12-25 13:23:41,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:41,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:41,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:41,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:41,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:41,348 INFO L87 Difference]: Start difference. First operand 5131 states and 7851 transitions. Second operand has 5 states, 5 states have (on average 241.6) internal successors, (1208), 5 states have internal predecessors, (1208), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:41,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:41,690 INFO L93 Difference]: Finished difference Result 6493 states and 9967 transitions. [2023-12-25 13:23:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:41,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 241.6) internal successors, (1208), 5 states have internal predecessors, (1208), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1275 [2023-12-25 13:23:41,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:41,695 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:41,695 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:41,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:41,696 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 2991 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:41,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2998 Valid, 3912 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:41,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5156878519710377) internal successors, (7536), 4972 states have internal predecessors, (7536), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:41,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7850 transitions. [2023-12-25 13:23:41,914 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7850 transitions. Word has length 1275 [2023-12-25 13:23:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:41,915 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7850 transitions. [2023-12-25 13:23:41,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 241.6) internal successors, (1208), 5 states have internal predecessors, (1208), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7850 transitions. [2023-12-25 13:23:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1277 [2023-12-25 13:23:41,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:41,929 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:41,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2023-12-25 13:23:41,929 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:41,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:41,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1161573567, now seen corresponding path program 1 times [2023-12-25 13:23:41,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:41,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451286426] [2023-12-25 13:23:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:41,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2023-12-25 13:23:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 948 [2023-12-25 13:23:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2023-12-25 13:23:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 983 [2023-12-25 13:23:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 994 [2023-12-25 13:23:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2023-12-25 13:23:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1019 [2023-12-25 13:23:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:44,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:44,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451286426] [2023-12-25 13:23:44,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451286426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:44,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:44,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:44,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299908292] [2023-12-25 13:23:44,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:44,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:44,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:44,133 INFO L87 Difference]: Start difference. First operand 5131 states and 7850 transitions. Second operand has 5 states, 5 states have (on average 241.8) internal successors, (1209), 5 states have internal predecessors, (1209), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:44,408 INFO L93 Difference]: Finished difference Result 6493 states and 9965 transitions. [2023-12-25 13:23:44,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:44,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 241.8) internal successors, (1209), 5 states have internal predecessors, (1209), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1276 [2023-12-25 13:23:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:44,413 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:44,413 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:44,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:44,415 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 2969 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:44,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 3952 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:44,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:44,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5154867256637168) internal successors, (7535), 4972 states have internal predecessors, (7535), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:44,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7849 transitions. [2023-12-25 13:23:44,637 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7849 transitions. Word has length 1276 [2023-12-25 13:23:44,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:44,638 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7849 transitions. [2023-12-25 13:23:44,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 241.8) internal successors, (1209), 5 states have internal predecessors, (1209), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:44,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7849 transitions. [2023-12-25 13:23:44,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1278 [2023-12-25 13:23:44,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:44,652 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:44,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2023-12-25 13:23:44,652 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:44,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:44,652 INFO L85 PathProgramCache]: Analyzing trace with hash 861076923, now seen corresponding path program 1 times [2023-12-25 13:23:44,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:44,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928813176] [2023-12-25 13:23:44,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:44,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 934 [2023-12-25 13:23:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2023-12-25 13:23:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:23:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2023-12-25 13:23:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2023-12-25 13:23:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1007 [2023-12-25 13:23:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1020 [2023-12-25 13:23:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:46,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:46,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928813176] [2023-12-25 13:23:46,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928813176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:46,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:46,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:46,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923225722] [2023-12-25 13:23:46,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:46,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:46,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:46,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:46,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:46,818 INFO L87 Difference]: Start difference. First operand 5131 states and 7849 transitions. Second operand has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:47,093 INFO L93 Difference]: Finished difference Result 6493 states and 9963 transitions. [2023-12-25 13:23:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:47,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1277 [2023-12-25 13:23:47,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:47,098 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:47,098 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:47,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:47,100 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 1602 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 3962 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:47,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 3962 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:47,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:47,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5152855993563958) internal successors, (7534), 4972 states have internal predecessors, (7534), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7848 transitions. [2023-12-25 13:23:47,375 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7848 transitions. Word has length 1277 [2023-12-25 13:23:47,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:47,375 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7848 transitions. [2023-12-25 13:23:47,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:47,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7848 transitions. [2023-12-25 13:23:47,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1279 [2023-12-25 13:23:47,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:47,389 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:47,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2023-12-25 13:23:47,390 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:47,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:47,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1704924655, now seen corresponding path program 1 times [2023-12-25 13:23:47,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:47,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224330821] [2023-12-25 13:23:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:47,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 935 [2023-12-25 13:23:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 950 [2023-12-25 13:23:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2023-12-25 13:23:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:23:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 996 [2023-12-25 13:23:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1008 [2023-12-25 13:23:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1021 [2023-12-25 13:23:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:49,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:49,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224330821] [2023-12-25 13:23:49,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224330821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:49,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:49,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:49,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805578018] [2023-12-25 13:23:49,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:49,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:49,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:49,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:49,663 INFO L87 Difference]: Start difference. First operand 5131 states and 7848 transitions. Second operand has 5 states, 5 states have (on average 242.2) internal successors, (1211), 5 states have internal predecessors, (1211), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:23:50,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:50,403 INFO L93 Difference]: Finished difference Result 6493 states and 9961 transitions. [2023-12-25 13:23:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:50,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 242.2) internal successors, (1211), 5 states have internal predecessors, (1211), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1278 [2023-12-25 13:23:50,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:50,408 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:50,408 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:50,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:50,410 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 1523 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:50,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 3152 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:23:50,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.515084473049075) internal successors, (7533), 4972 states have internal predecessors, (7533), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7847 transitions. [2023-12-25 13:23:50,629 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7847 transitions. Word has length 1278 [2023-12-25 13:23:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:50,629 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7847 transitions. [2023-12-25 13:23:50,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 242.2) internal successors, (1211), 5 states have internal predecessors, (1211), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:23:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7847 transitions. [2023-12-25 13:23:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1280 [2023-12-25 13:23:50,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:50,643 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:50,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2023-12-25 13:23:50,643 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:50,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1517345555, now seen corresponding path program 1 times [2023-12-25 13:23:50,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:50,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083760477] [2023-12-25 13:23:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2023-12-25 13:23:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:23:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 970 [2023-12-25 13:23:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:23:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2023-12-25 13:23:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1009 [2023-12-25 13:23:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1022 [2023-12-25 13:23:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:52,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:52,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083760477] [2023-12-25 13:23:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083760477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:52,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:52,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:52,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540526327] [2023-12-25 13:23:52,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:52,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:52,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:52,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:52,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:52,769 INFO L87 Difference]: Start difference. First operand 5131 states and 7847 transitions. Second operand has 5 states, 5 states have (on average 242.4) internal successors, (1212), 5 states have internal predecessors, (1212), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:53,109 INFO L93 Difference]: Finished difference Result 6493 states and 9959 transitions. [2023-12-25 13:23:53,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:53,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 242.4) internal successors, (1212), 5 states have internal predecessors, (1212), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1279 [2023-12-25 13:23:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:53,114 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:53,114 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:53,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:53,116 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 1522 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 3828 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:53,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 3828 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:53,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:53,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:53,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5148833467417537) internal successors, (7532), 4972 states have internal predecessors, (7532), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7846 transitions. [2023-12-25 13:23:53,336 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7846 transitions. Word has length 1279 [2023-12-25 13:23:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:53,336 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7846 transitions. [2023-12-25 13:23:53,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 242.4) internal successors, (1212), 5 states have internal predecessors, (1212), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7846 transitions. [2023-12-25 13:23:53,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1281 [2023-12-25 13:23:53,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:53,350 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:53,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2023-12-25 13:23:53,350 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:53,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:53,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1049289783, now seen corresponding path program 1 times [2023-12-25 13:23:53,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:53,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449779166] [2023-12-25 13:23:53,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:53,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 937 [2023-12-25 13:23:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2023-12-25 13:23:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2023-12-25 13:23:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2023-12-25 13:23:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 998 [2023-12-25 13:23:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1010 [2023-12-25 13:23:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1023 [2023-12-25 13:23:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:55,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449779166] [2023-12-25 13:23:55,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449779166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:55,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548756320] [2023-12-25 13:23:55,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:55,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:55,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:55,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:55,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:55,516 INFO L87 Difference]: Start difference. First operand 5131 states and 7846 transitions. Second operand has 5 states, 5 states have (on average 242.6) internal successors, (1213), 5 states have internal predecessors, (1213), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:55,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:55,925 INFO L93 Difference]: Finished difference Result 6493 states and 9957 transitions. [2023-12-25 13:23:55,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:55,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 242.6) internal successors, (1213), 5 states have internal predecessors, (1213), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1280 [2023-12-25 13:23:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:55,931 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:55,931 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:55,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:55,933 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 1514 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 3828 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:55,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 3828 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:23:55,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5146822204344328) internal successors, (7531), 4972 states have internal predecessors, (7531), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7845 transitions. [2023-12-25 13:23:56,168 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7845 transitions. Word has length 1280 [2023-12-25 13:23:56,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:56,169 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7845 transitions. [2023-12-25 13:23:56,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 242.6) internal successors, (1213), 5 states have internal predecessors, (1213), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7845 transitions. [2023-12-25 13:23:56,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1282 [2023-12-25 13:23:56,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:56,187 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:56,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2023-12-25 13:23:56,187 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:56,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash -333274529, now seen corresponding path program 1 times [2023-12-25 13:23:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:56,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861010970] [2023-12-25 13:23:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:56,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:23:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:23:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:23:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:23:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:23:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:23:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:23:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 938 [2023-12-25 13:23:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:23:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 972 [2023-12-25 13:23:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2023-12-25 13:23:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 999 [2023-12-25 13:23:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1011 [2023-12-25 13:23:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:23:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:23:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:23:58,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:23:58,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861010970] [2023-12-25 13:23:58,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861010970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:23:58,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:23:58,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:23:58,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138293616] [2023-12-25 13:23:58,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:23:58,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:23:58,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:23:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:23:58,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:23:58,261 INFO L87 Difference]: Start difference. First operand 5131 states and 7845 transitions. Second operand has 5 states, 5 states have (on average 242.8) internal successors, (1214), 5 states have internal predecessors, (1214), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:23:58,649 INFO L93 Difference]: Finished difference Result 6493 states and 9955 transitions. [2023-12-25 13:23:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:23:58,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 242.8) internal successors, (1214), 5 states have internal predecessors, (1214), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1281 [2023-12-25 13:23:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:23:58,656 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:23:58,656 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:23:58,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:23:58,659 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2743 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:23:58,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 3818 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:23:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:23:58,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:23:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5144810941271118) internal successors, (7530), 4972 states have internal predecessors, (7530), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:23:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7844 transitions. [2023-12-25 13:23:58,894 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7844 transitions. Word has length 1281 [2023-12-25 13:23:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:23:58,894 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7844 transitions. [2023-12-25 13:23:58,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 242.8) internal successors, (1214), 5 states have internal predecessors, (1214), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:23:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7844 transitions. [2023-12-25 13:23:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2023-12-25 13:23:58,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:23:58,908 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:23:58,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2023-12-25 13:23:58,909 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:23:58,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:23:58,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1494402965, now seen corresponding path program 1 times [2023-12-25 13:23:58,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:23:58,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197347574] [2023-12-25 13:23:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:23:58,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:23:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2023-12-25 13:24:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2023-12-25 13:24:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2023-12-25 13:24:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 989 [2023-12-25 13:24:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1000 [2023-12-25 13:24:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:24:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2023-12-25 13:24:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:01,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:01,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197347574] [2023-12-25 13:24:01,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197347574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:01,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:01,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:01,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598306928] [2023-12-25 13:24:01,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:01,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:01,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:01,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:01,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:01,117 INFO L87 Difference]: Start difference. First operand 5131 states and 7844 transitions. Second operand has 5 states, 5 states have (on average 243.0) internal successors, (1215), 5 states have internal predecessors, (1215), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:01,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:01,468 INFO L93 Difference]: Finished difference Result 6493 states and 9953 transitions. [2023-12-25 13:24:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:01,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 243.0) internal successors, (1215), 5 states have internal predecessors, (1215), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1282 [2023-12-25 13:24:01,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:01,473 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:01,473 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:01,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:01,474 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2727 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:01,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 3818 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:01,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:01,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.514279967819791) internal successors, (7529), 4972 states have internal predecessors, (7529), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:01,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7843 transitions. [2023-12-25 13:24:01,740 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7843 transitions. Word has length 1282 [2023-12-25 13:24:01,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:01,740 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7843 transitions. [2023-12-25 13:24:01,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.0) internal successors, (1215), 5 states have internal predecessors, (1215), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:01,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7843 transitions. [2023-12-25 13:24:01,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2023-12-25 13:24:01,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:01,754 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:01,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2023-12-25 13:24:01,754 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:01,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:01,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1175403121, now seen corresponding path program 1 times [2023-12-25 13:24:01,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:01,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122928964] [2023-12-25 13:24:01,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:01,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2023-12-25 13:24:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2023-12-25 13:24:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2023-12-25 13:24:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 990 [2023-12-25 13:24:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:24:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:24:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1026 [2023-12-25 13:24:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:03,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:03,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122928964] [2023-12-25 13:24:03,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122928964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:03,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:03,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:03,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946573884] [2023-12-25 13:24:03,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:03,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:03,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:03,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:03,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:03,867 INFO L87 Difference]: Start difference. First operand 5131 states and 7843 transitions. Second operand has 5 states, 5 states have (on average 243.2) internal successors, (1216), 5 states have internal predecessors, (1216), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:04,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:04,228 INFO L93 Difference]: Finished difference Result 6493 states and 9951 transitions. [2023-12-25 13:24:04,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:04,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 243.2) internal successors, (1216), 5 states have internal predecessors, (1216), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1283 [2023-12-25 13:24:04,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:04,234 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:04,234 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:04,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:04,236 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2711 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:04,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 3818 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:04,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:04,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5140788415124697) internal successors, (7528), 4972 states have internal predecessors, (7528), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:04,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7842 transitions. [2023-12-25 13:24:04,476 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7842 transitions. Word has length 1283 [2023-12-25 13:24:04,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:04,476 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7842 transitions. [2023-12-25 13:24:04,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.2) internal successors, (1216), 5 states have internal predecessors, (1216), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7842 transitions. [2023-12-25 13:24:04,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1285 [2023-12-25 13:24:04,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:04,490 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:04,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2023-12-25 13:24:04,490 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:04,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1525774749, now seen corresponding path program 1 times [2023-12-25 13:24:04,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:04,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984670144] [2023-12-25 13:24:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:04,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 941 [2023-12-25 13:24:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2023-12-25 13:24:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2023-12-25 13:24:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 991 [2023-12-25 13:24:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:24:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1014 [2023-12-25 13:24:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1027 [2023-12-25 13:24:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:06,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:06,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984670144] [2023-12-25 13:24:06,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984670144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:06,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:06,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:06,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179090911] [2023-12-25 13:24:06,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:06,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:06,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:06,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:06,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:06,943 INFO L87 Difference]: Start difference. First operand 5131 states and 7842 transitions. Second operand has 5 states, 5 states have (on average 243.4) internal successors, (1217), 5 states have internal predecessors, (1217), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:07,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:07,390 INFO L93 Difference]: Finished difference Result 6493 states and 9949 transitions. [2023-12-25 13:24:07,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:07,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 243.4) internal successors, (1217), 5 states have internal predecessors, (1217), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1284 [2023-12-25 13:24:07,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:07,397 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:07,397 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:07,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:07,400 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2695 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2702 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:07,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2702 Valid, 3818 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:07,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:07,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5138777152051488) internal successors, (7527), 4972 states have internal predecessors, (7527), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7841 transitions. [2023-12-25 13:24:07,728 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7841 transitions. Word has length 1284 [2023-12-25 13:24:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:07,729 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7841 transitions. [2023-12-25 13:24:07,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.4) internal successors, (1217), 5 states have internal predecessors, (1217), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7841 transitions. [2023-12-25 13:24:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1286 [2023-12-25 13:24:07,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:07,746 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:07,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2023-12-25 13:24:07,747 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:07,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:07,747 INFO L85 PathProgramCache]: Analyzing trace with hash -2077109887, now seen corresponding path program 1 times [2023-12-25 13:24:07,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:07,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891045212] [2023-12-25 13:24:07,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:09,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 942 [2023-12-25 13:24:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 957 [2023-12-25 13:24:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 976 [2023-12-25 13:24:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 992 [2023-12-25 13:24:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2023-12-25 13:24:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-12-25 13:24:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1028 [2023-12-25 13:24:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:10,017 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:10,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:10,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891045212] [2023-12-25 13:24:10,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891045212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:10,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:10,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442853067] [2023-12-25 13:24:10,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:10,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:10,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:10,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:10,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:10,019 INFO L87 Difference]: Start difference. First operand 5131 states and 7841 transitions. Second operand has 5 states, 5 states have (on average 243.6) internal successors, (1218), 5 states have internal predecessors, (1218), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:10,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:10,436 INFO L93 Difference]: Finished difference Result 6493 states and 9947 transitions. [2023-12-25 13:24:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:10,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 243.6) internal successors, (1218), 5 states have internal predecessors, (1218), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1285 [2023-12-25 13:24:10,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:10,441 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:10,441 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:10,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:10,442 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2679 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:10,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 3818 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 13:24:10,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5136765888978279) internal successors, (7526), 4972 states have internal predecessors, (7526), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7840 transitions. [2023-12-25 13:24:10,669 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7840 transitions. Word has length 1285 [2023-12-25 13:24:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:10,669 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7840 transitions. [2023-12-25 13:24:10,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.6) internal successors, (1218), 5 states have internal predecessors, (1218), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7840 transitions. [2023-12-25 13:24:10,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1287 [2023-12-25 13:24:10,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:10,683 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:10,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2023-12-25 13:24:10,683 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:10,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:10,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1491624273, now seen corresponding path program 1 times [2023-12-25 13:24:10,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:10,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743938934] [2023-12-25 13:24:10,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:10,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2023-12-25 13:24:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2023-12-25 13:24:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 977 [2023-12-25 13:24:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 993 [2023-12-25 13:24:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2023-12-25 13:24:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2023-12-25 13:24:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2023-12-25 13:24:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:12,795 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:12,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:12,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743938934] [2023-12-25 13:24:12,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743938934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:12,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:12,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:12,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876116033] [2023-12-25 13:24:12,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:12,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:12,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:12,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:12,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:12,797 INFO L87 Difference]: Start difference. First operand 5131 states and 7840 transitions. Second operand has 5 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:13,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:13,134 INFO L93 Difference]: Finished difference Result 6493 states and 9945 transitions. [2023-12-25 13:24:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:13,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1286 [2023-12-25 13:24:13,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:13,139 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:13,139 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:13,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:13,141 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 1466 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 3828 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:13,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 3828 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:13,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.513475462590507) internal successors, (7525), 4972 states have internal predecessors, (7525), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7839 transitions. [2023-12-25 13:24:13,362 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7839 transitions. Word has length 1286 [2023-12-25 13:24:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:13,363 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7839 transitions. [2023-12-25 13:24:13,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7839 transitions. [2023-12-25 13:24:13,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1288 [2023-12-25 13:24:13,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:13,377 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:13,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2023-12-25 13:24:13,377 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:13,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:13,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1733115185, now seen corresponding path program 1 times [2023-12-25 13:24:13,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:13,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681570831] [2023-12-25 13:24:13,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:13,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 944 [2023-12-25 13:24:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 959 [2023-12-25 13:24:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 978 [2023-12-25 13:24:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 994 [2023-12-25 13:24:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1005 [2023-12-25 13:24:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2023-12-25 13:24:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1030 [2023-12-25 13:24:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:15,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:15,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681570831] [2023-12-25 13:24:15,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681570831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:15,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:15,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973918268] [2023-12-25 13:24:15,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:15,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:15,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:15,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:15,443 INFO L87 Difference]: Start difference. First operand 5131 states and 7839 transitions. Second operand has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:15,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:15,739 INFO L93 Difference]: Finished difference Result 6493 states and 9943 transitions. [2023-12-25 13:24:15,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:15,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1287 [2023-12-25 13:24:15,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:15,744 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:15,744 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:15,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:15,746 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 1446 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:15,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 3900 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5132743362831858) internal successors, (7524), 4972 states have internal predecessors, (7524), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7838 transitions. [2023-12-25 13:24:16,024 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7838 transitions. Word has length 1287 [2023-12-25 13:24:16,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:16,025 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7838 transitions. [2023-12-25 13:24:16,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7838 transitions. [2023-12-25 13:24:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2023-12-25 13:24:16,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:16,039 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:16,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2023-12-25 13:24:16,039 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:16,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:16,039 INFO L85 PathProgramCache]: Analyzing trace with hash -216600573, now seen corresponding path program 1 times [2023-12-25 13:24:16,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:16,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409053171] [2023-12-25 13:24:16,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:16,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 945 [2023-12-25 13:24:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 960 [2023-12-25 13:24:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 979 [2023-12-25 13:24:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2023-12-25 13:24:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2023-12-25 13:24:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1018 [2023-12-25 13:24:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1031 [2023-12-25 13:24:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:18,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:18,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409053171] [2023-12-25 13:24:18,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409053171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:18,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:18,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:18,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011939278] [2023-12-25 13:24:18,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:18,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:18,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:18,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:18,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:18,224 INFO L87 Difference]: Start difference. First operand 5131 states and 7838 transitions. Second operand has 5 states, 5 states have (on average 244.2) internal successors, (1221), 5 states have internal predecessors, (1221), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:18,539 INFO L93 Difference]: Finished difference Result 6493 states and 9941 transitions. [2023-12-25 13:24:18,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:18,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 244.2) internal successors, (1221), 5 states have internal predecessors, (1221), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1288 [2023-12-25 13:24:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:18,545 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:18,545 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:18,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:18,547 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 2619 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:18,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 3890 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:18,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5130732099758648) internal successors, (7523), 4972 states have internal predecessors, (7523), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7837 transitions. [2023-12-25 13:24:18,769 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7837 transitions. Word has length 1288 [2023-12-25 13:24:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:18,770 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7837 transitions. [2023-12-25 13:24:18,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 244.2) internal successors, (1221), 5 states have internal predecessors, (1221), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7837 transitions. [2023-12-25 13:24:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1290 [2023-12-25 13:24:18,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:18,784 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:18,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2023-12-25 13:24:18,784 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:18,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash -742451293, now seen corresponding path program 1 times [2023-12-25 13:24:18,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:18,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336161331] [2023-12-25 13:24:18,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:18,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2023-12-25 13:24:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 961 [2023-12-25 13:24:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 980 [2023-12-25 13:24:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 996 [2023-12-25 13:24:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1007 [2023-12-25 13:24:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1019 [2023-12-25 13:24:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1032 [2023-12-25 13:24:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:20,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:20,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336161331] [2023-12-25 13:24:20,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336161331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:20,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:20,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207737334] [2023-12-25 13:24:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:20,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:20,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:20,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:20,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:20,911 INFO L87 Difference]: Start difference. First operand 5131 states and 7837 transitions. Second operand has 5 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:21,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:21,224 INFO L93 Difference]: Finished difference Result 6493 states and 9939 transitions. [2023-12-25 13:24:21,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:21,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1289 [2023-12-25 13:24:21,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:21,229 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:21,229 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:21,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:21,231 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 2603 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:21,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 3890 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:21,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:21,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5128720836685439) internal successors, (7522), 4972 states have internal predecessors, (7522), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7836 transitions. [2023-12-25 13:24:21,455 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7836 transitions. Word has length 1289 [2023-12-25 13:24:21,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:21,455 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7836 transitions. [2023-12-25 13:24:21,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:21,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7836 transitions. [2023-12-25 13:24:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2023-12-25 13:24:21,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:21,470 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:21,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2023-12-25 13:24:21,470 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:21,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1847776457, now seen corresponding path program 1 times [2023-12-25 13:24:21,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:21,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802679326] [2023-12-25 13:24:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2023-12-25 13:24:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2023-12-25 13:24:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 981 [2023-12-25 13:24:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2023-12-25 13:24:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1008 [2023-12-25 13:24:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1020 [2023-12-25 13:24:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1033 [2023-12-25 13:24:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:23,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:23,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802679326] [2023-12-25 13:24:23,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802679326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:23,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:23,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:23,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337315784] [2023-12-25 13:24:23,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:23,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:23,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:23,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:23,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:23,733 INFO L87 Difference]: Start difference. First operand 5131 states and 7836 transitions. Second operand has 5 states, 5 states have (on average 244.6) internal successors, (1223), 5 states have internal predecessors, (1223), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:24,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:24,091 INFO L93 Difference]: Finished difference Result 6493 states and 9937 transitions. [2023-12-25 13:24:24,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:24,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 244.6) internal successors, (1223), 5 states have internal predecessors, (1223), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1290 [2023-12-25 13:24:24,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:24,097 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:24,097 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:24,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:24,099 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 2587 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:24,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 3890 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:24,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.512670957361223) internal successors, (7521), 4972 states have internal predecessors, (7521), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7835 transitions. [2023-12-25 13:24:24,351 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7835 transitions. Word has length 1290 [2023-12-25 13:24:24,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:24,351 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7835 transitions. [2023-12-25 13:24:24,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 244.6) internal successors, (1223), 5 states have internal predecessors, (1223), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7835 transitions. [2023-12-25 13:24:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1292 [2023-12-25 13:24:24,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:24,365 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:24,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2023-12-25 13:24:24,366 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:24,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1355353043, now seen corresponding path program 1 times [2023-12-25 13:24:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:24,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810142361] [2023-12-25 13:24:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 948 [2023-12-25 13:24:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2023-12-25 13:24:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 982 [2023-12-25 13:24:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 998 [2023-12-25 13:24:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1009 [2023-12-25 13:24:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1021 [2023-12-25 13:24:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2023-12-25 13:24:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:26,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:26,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810142361] [2023-12-25 13:24:26,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810142361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:26,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:26,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:26,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624963409] [2023-12-25 13:24:26,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:26,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:26,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:26,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:26,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:26,715 INFO L87 Difference]: Start difference. First operand 5131 states and 7835 transitions. Second operand has 5 states, 5 states have (on average 244.8) internal successors, (1224), 5 states have internal predecessors, (1224), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:26,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:26,989 INFO L93 Difference]: Finished difference Result 6493 states and 9935 transitions. [2023-12-25 13:24:26,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:26,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 244.8) internal successors, (1224), 5 states have internal predecessors, (1224), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1291 [2023-12-25 13:24:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:26,995 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:26,996 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:26,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:26,997 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 2565 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:26,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 3926 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:27,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5124698310539018) internal successors, (7520), 4972 states have internal predecessors, (7520), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7834 transitions. [2023-12-25 13:24:27,224 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7834 transitions. Word has length 1291 [2023-12-25 13:24:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:27,224 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7834 transitions. [2023-12-25 13:24:27,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 244.8) internal successors, (1224), 5 states have internal predecessors, (1224), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7834 transitions. [2023-12-25 13:24:27,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1293 [2023-12-25 13:24:27,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:27,239 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:27,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2023-12-25 13:24:27,240 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:27,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1500432233, now seen corresponding path program 1 times [2023-12-25 13:24:27,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:27,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36254664] [2023-12-25 13:24:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:27,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2023-12-25 13:24:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2023-12-25 13:24:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 983 [2023-12-25 13:24:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 999 [2023-12-25 13:24:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1010 [2023-12-25 13:24:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1022 [2023-12-25 13:24:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1035 [2023-12-25 13:24:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:29,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:29,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36254664] [2023-12-25 13:24:29,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36254664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:29,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:29,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:29,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607931751] [2023-12-25 13:24:29,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:29,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:29,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:29,530 INFO L87 Difference]: Start difference. First operand 5131 states and 7834 transitions. Second operand has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:29,846 INFO L93 Difference]: Finished difference Result 6493 states and 9933 transitions. [2023-12-25 13:24:29,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:29,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1292 [2023-12-25 13:24:29,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:29,851 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:29,851 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:29,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:29,853 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 2549 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2556 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:29,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2556 Valid, 3926 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:29,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:30,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5122687047465808) internal successors, (7519), 4972 states have internal predecessors, (7519), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:30,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7833 transitions. [2023-12-25 13:24:30,074 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7833 transitions. Word has length 1292 [2023-12-25 13:24:30,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:30,074 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7833 transitions. [2023-12-25 13:24:30,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:30,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7833 transitions. [2023-12-25 13:24:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1294 [2023-12-25 13:24:30,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:30,088 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:30,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2023-12-25 13:24:30,089 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:30,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:30,089 INFO L85 PathProgramCache]: Analyzing trace with hash -842074939, now seen corresponding path program 1 times [2023-12-25 13:24:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275519338] [2023-12-25 13:24:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:30,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 950 [2023-12-25 13:24:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2023-12-25 13:24:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2023-12-25 13:24:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1000 [2023-12-25 13:24:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1011 [2023-12-25 13:24:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1023 [2023-12-25 13:24:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2023-12-25 13:24:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:32,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:32,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275519338] [2023-12-25 13:24:32,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275519338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:32,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:32,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:32,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943904864] [2023-12-25 13:24:32,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:32,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:32,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:32,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:32,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:32,415 INFO L87 Difference]: Start difference. First operand 5131 states and 7833 transitions. Second operand has 5 states, 5 states have (on average 245.2) internal successors, (1226), 5 states have internal predecessors, (1226), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:24:33,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:33,128 INFO L93 Difference]: Finished difference Result 6493 states and 9931 transitions. [2023-12-25 13:24:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:33,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.2) internal successors, (1226), 5 states have internal predecessors, (1226), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1293 [2023-12-25 13:24:33,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:33,133 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:33,133 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:33,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:33,135 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 2462 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:33,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2464 Valid, 3114 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 13:24:33,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5120675784392599) internal successors, (7518), 4972 states have internal predecessors, (7518), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7832 transitions. [2023-12-25 13:24:33,352 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7832 transitions. Word has length 1293 [2023-12-25 13:24:33,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:33,353 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7832 transitions. [2023-12-25 13:24:33,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.2) internal successors, (1226), 5 states have internal predecessors, (1226), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:24:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7832 transitions. [2023-12-25 13:24:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:24:33,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:33,366 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:33,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2023-12-25 13:24:33,366 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:33,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1918834205, now seen corresponding path program 1 times [2023-12-25 13:24:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:33,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296618870] [2023-12-25 13:24:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:33,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:24:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:24:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:24:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:24:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:24:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:24:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:24:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:39,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:39,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296618870] [2023-12-25 13:24:39,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296618870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:39,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:39,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:24:39,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235719013] [2023-12-25 13:24:39,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:39,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:24:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:24:39,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:24:39,560 INFO L87 Difference]: Start difference. First operand 5131 states and 7832 transitions. Second operand has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:39,830 INFO L93 Difference]: Finished difference Result 6493 states and 9929 transitions. [2023-12-25 13:24:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:39,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:24:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:39,835 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:39,835 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:39,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:39,836 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1335 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:39,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 3924 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:39,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:40,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:40,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.511866452131939) internal successors, (7517), 4972 states have internal predecessors, (7517), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:40,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7831 transitions. [2023-12-25 13:24:40,064 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7831 transitions. Word has length 1294 [2023-12-25 13:24:40,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:40,065 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7831 transitions. [2023-12-25 13:24:40,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:40,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7831 transitions. [2023-12-25 13:24:40,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:24:40,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:40,080 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:40,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2023-12-25 13:24:40,080 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:40,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash -861065953, now seen corresponding path program 1 times [2023-12-25 13:24:40,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193882937] [2023-12-25 13:24:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:40,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:24:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:24:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:24:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:24:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:24:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:24:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:24:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:46,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:46,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193882937] [2023-12-25 13:24:46,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193882937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:46,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:46,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:24:46,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392695357] [2023-12-25 13:24:46,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:46,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:24:46,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:46,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:24:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:24:46,741 INFO L87 Difference]: Start difference. First operand 5131 states and 7831 transitions. Second operand has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:46,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:46,999 INFO L93 Difference]: Finished difference Result 6493 states and 9927 transitions. [2023-12-25 13:24:46,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:47,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:24:47,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:47,005 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:47,005 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:47,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:47,006 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1147 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:47,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 3924 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:24:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5116653258246178) internal successors, (7516), 4972 states have internal predecessors, (7516), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7830 transitions. [2023-12-25 13:24:47,243 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7830 transitions. Word has length 1294 [2023-12-25 13:24:47,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:47,243 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7830 transitions. [2023-12-25 13:24:47,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:47,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7830 transitions. [2023-12-25 13:24:47,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:24:47,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:47,257 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:47,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2023-12-25 13:24:47,258 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:47,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:47,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1672349859, now seen corresponding path program 1 times [2023-12-25 13:24:47,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:47,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960986094] [2023-12-25 13:24:47,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:47,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:24:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:53,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:24:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:24:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:53,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:24:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:24:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:24:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:24:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:24:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:24:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:24:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:24:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:24:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:24:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:24:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:24:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:24:54,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:24:54,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960986094] [2023-12-25 13:24:54,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960986094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:24:54,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:24:54,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:24:54,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44081240] [2023-12-25 13:24:54,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:24:54,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:24:54,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:24:54,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:24:54,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:24:54,011 INFO L87 Difference]: Start difference. First operand 5131 states and 7830 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:54,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:24:54,331 INFO L93 Difference]: Finished difference Result 6493 states and 9925 transitions. [2023-12-25 13:24:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:24:54,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:24:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:24:54,336 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:24:54,336 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:24:54,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:24:54,338 INFO L413 NwaCegarLoop]: 1939 mSDtfsCounter, 3082 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:24:54,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3082 Valid, 3880 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:24:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:24:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:24:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5114641995172968) internal successors, (7515), 4972 states have internal predecessors, (7515), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:24:54,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7829 transitions. [2023-12-25 13:24:54,558 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7829 transitions. Word has length 1294 [2023-12-25 13:24:54,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:24:54,559 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7829 transitions. [2023-12-25 13:24:54,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:24:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7829 transitions. [2023-12-25 13:24:54,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:24:54,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:24:54,573 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:24:54,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2023-12-25 13:24:54,573 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:24:54,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:24:54,573 INFO L85 PathProgramCache]: Analyzing trace with hash 365385567, now seen corresponding path program 1 times [2023-12-25 13:24:54,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:24:54,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451903587] [2023-12-25 13:24:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:24:54,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:24:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:01,101 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:01,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:01,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451903587] [2023-12-25 13:25:01,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451903587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:01,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:01,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:25:01,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2781351] [2023-12-25 13:25:01,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:01,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:25:01,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:01,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:25:01,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:01,103 INFO L87 Difference]: Start difference. First operand 5131 states and 7829 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:01,444 INFO L93 Difference]: Finished difference Result 6493 states and 9923 transitions. [2023-12-25 13:25:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:01,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:01,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:01,448 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:01,448 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:01,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:25:01,450 INFO L413 NwaCegarLoop]: 1939 mSDtfsCounter, 1721 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:01,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 3890 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:01,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:01,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5112630732099759) internal successors, (7514), 4972 states have internal predecessors, (7514), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:01,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7828 transitions. [2023-12-25 13:25:01,672 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7828 transitions. Word has length 1294 [2023-12-25 13:25:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:01,673 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7828 transitions. [2023-12-25 13:25:01,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:01,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7828 transitions. [2023-12-25 13:25:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:01,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:01,687 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:01,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2023-12-25 13:25:01,687 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:01,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:01,687 INFO L85 PathProgramCache]: Analyzing trace with hash -385280611, now seen corresponding path program 1 times [2023-12-25 13:25:01,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:01,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603868619] [2023-12-25 13:25:01,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:01,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:08,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:08,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603868619] [2023-12-25 13:25:08,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603868619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:08,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:08,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:25:08,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972313038] [2023-12-25 13:25:08,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:08,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:25:08,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:25:08,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:08,119 INFO L87 Difference]: Start difference. First operand 5131 states and 7828 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:08,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:08,426 INFO L93 Difference]: Finished difference Result 6493 states and 9921 transitions. [2023-12-25 13:25:08,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:08,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:08,432 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:08,432 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:08,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:25:08,434 INFO L413 NwaCegarLoop]: 1939 mSDtfsCounter, 3064 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:08,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 3880 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:08,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.511061946902655) internal successors, (7513), 4972 states have internal predecessors, (7513), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7827 transitions. [2023-12-25 13:25:08,694 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7827 transitions. Word has length 1294 [2023-12-25 13:25:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:08,695 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7827 transitions. [2023-12-25 13:25:08,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7827 transitions. [2023-12-25 13:25:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:08,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:08,709 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:08,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2023-12-25 13:25:08,709 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:08,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:08,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1927692001, now seen corresponding path program 1 times [2023-12-25 13:25:08,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:08,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036327764] [2023-12-25 13:25:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:15,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:15,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036327764] [2023-12-25 13:25:15,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036327764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:15,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:15,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:25:15,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351524941] [2023-12-25 13:25:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:15,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:25:15,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:25:15,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:15,907 INFO L87 Difference]: Start difference. First operand 5131 states and 7827 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:16,204 INFO L93 Difference]: Finished difference Result 6493 states and 9919 transitions. [2023-12-25 13:25:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:16,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:16,209 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:16,209 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:16,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:25:16,211 INFO L413 NwaCegarLoop]: 1939 mSDtfsCounter, 1719 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:16,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 3890 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:16,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5108608205953338) internal successors, (7512), 4972 states have internal predecessors, (7512), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7826 transitions. [2023-12-25 13:25:16,433 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7826 transitions. Word has length 1294 [2023-12-25 13:25:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:16,433 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7826 transitions. [2023-12-25 13:25:16,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7826 transitions. [2023-12-25 13:25:16,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:16,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:16,447 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:16,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2023-12-25 13:25:16,448 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:16,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:16,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1248125533, now seen corresponding path program 1 times [2023-12-25 13:25:16,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:16,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753435262] [2023-12-25 13:25:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:22,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:22,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753435262] [2023-12-25 13:25:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753435262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:22,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:22,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:25:22,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003783573] [2023-12-25 13:25:22,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:22,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:25:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:22,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:25:22,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:25:22,579 INFO L87 Difference]: Start difference. First operand 5131 states and 7826 transitions. Second operand has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:22,875 INFO L93 Difference]: Finished difference Result 6493 states and 9917 transitions. [2023-12-25 13:25:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:22,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:22,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:22,881 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:22,881 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:22,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:22,883 INFO L413 NwaCegarLoop]: 1939 mSDtfsCounter, 1156 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:22,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 3880 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:22,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5106596942880128) internal successors, (7511), 4972 states have internal predecessors, (7511), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:23,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7825 transitions. [2023-12-25 13:25:23,110 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7825 transitions. Word has length 1294 [2023-12-25 13:25:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:23,110 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7825 transitions. [2023-12-25 13:25:23,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7825 transitions. [2023-12-25 13:25:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:23,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:23,124 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:23,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2023-12-25 13:25:23,124 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:23,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:23,125 INFO L85 PathProgramCache]: Analyzing trace with hash -805050341, now seen corresponding path program 1 times [2023-12-25 13:25:23,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:23,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820691196] [2023-12-25 13:25:23,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:23,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:29,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820691196] [2023-12-25 13:25:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820691196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:29,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:25:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773195928] [2023-12-25 13:25:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:29,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:25:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:25:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:29,729 INFO L87 Difference]: Start difference. First operand 5131 states and 7825 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:30,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:30,111 INFO L93 Difference]: Finished difference Result 6493 states and 9915 transitions. [2023-12-25 13:25:30,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:30,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:30,116 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:30,116 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:30,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:25:30,117 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 3116 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:30,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 3790 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:30,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.510458567980692) internal successors, (7510), 4972 states have internal predecessors, (7510), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7824 transitions. [2023-12-25 13:25:30,342 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7824 transitions. Word has length 1294 [2023-12-25 13:25:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:30,344 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7824 transitions. [2023-12-25 13:25:30,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7824 transitions. [2023-12-25 13:25:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:30,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:30,358 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:30,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2023-12-25 13:25:30,358 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:30,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash 889281053, now seen corresponding path program 1 times [2023-12-25 13:25:30,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:30,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40778719] [2023-12-25 13:25:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:37,105 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:37,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:37,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40778719] [2023-12-25 13:25:37,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40778719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:37,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:37,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:25:37,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856017799] [2023-12-25 13:25:37,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:37,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:25:37,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:37,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:25:37,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:37,108 INFO L87 Difference]: Start difference. First operand 5131 states and 7824 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:37,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:37,460 INFO L93 Difference]: Finished difference Result 6493 states and 9913 transitions. [2023-12-25 13:25:37,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:37,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:37,466 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:37,466 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:37,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:25:37,468 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1704 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:37,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 3800 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:37,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:37,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.510257441673371) internal successors, (7509), 4972 states have internal predecessors, (7509), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7823 transitions. [2023-12-25 13:25:37,739 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7823 transitions. Word has length 1294 [2023-12-25 13:25:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:37,739 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7823 transitions. [2023-12-25 13:25:37,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:37,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7823 transitions. [2023-12-25 13:25:37,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:37,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:37,753 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:37,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2023-12-25 13:25:37,753 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:37,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:37,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1238058587, now seen corresponding path program 1 times [2023-12-25 13:25:37,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:37,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957272843] [2023-12-25 13:25:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:37,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:44,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:44,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957272843] [2023-12-25 13:25:44,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957272843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:44,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:44,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:25:44,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301001336] [2023-12-25 13:25:44,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:44,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:25:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:25:44,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:25:44,879 INFO L87 Difference]: Start difference. First operand 5131 states and 7823 transitions. Second operand has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:45,199 INFO L93 Difference]: Finished difference Result 6493 states and 9911 transitions. [2023-12-25 13:25:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:45,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:45,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:45,205 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:45,205 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:45,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:45,214 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1396 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:45,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 3790 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:45,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:45,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:45,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5100563153660498) internal successors, (7508), 4972 states have internal predecessors, (7508), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:45,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7822 transitions. [2023-12-25 13:25:45,442 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7822 transitions. Word has length 1294 [2023-12-25 13:25:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:45,443 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7822 transitions. [2023-12-25 13:25:45,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7822 transitions. [2023-12-25 13:25:45,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:45,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:45,457 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:45,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2023-12-25 13:25:45,457 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:45,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:45,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1963688925, now seen corresponding path program 1 times [2023-12-25 13:25:45,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:45,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884004450] [2023-12-25 13:25:45,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:45,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:52,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:52,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884004450] [2023-12-25 13:25:52,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884004450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:52,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:52,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:25:52,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783225023] [2023-12-25 13:25:52,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:52,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:25:52,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:52,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:25:52,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:52,290 INFO L87 Difference]: Start difference. First operand 5131 states and 7822 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:52,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:52,647 INFO L93 Difference]: Finished difference Result 6493 states and 9909 transitions. [2023-12-25 13:25:52,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:52,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:52,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:52,652 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:52,652 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:52,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:25:52,654 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1702 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:52,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 3800 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:52,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:25:52,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:25:52,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5098551890587288) internal successors, (7507), 4972 states have internal predecessors, (7507), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:25:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7821 transitions. [2023-12-25 13:25:52,876 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7821 transitions. Word has length 1294 [2023-12-25 13:25:52,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:25:52,876 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7821 transitions. [2023-12-25 13:25:52,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7821 transitions. [2023-12-25 13:25:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:25:52,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:25:52,890 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:25:52,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2023-12-25 13:25:52,890 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:25:52,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:25:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash 626044127, now seen corresponding path program 1 times [2023-12-25 13:25:52,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:25:52,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409342765] [2023-12-25 13:25:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:25:52,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:25:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:25:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:25:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:25:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:25:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:25:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:25:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:25:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:25:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:25:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:25:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:25:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:25:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:25:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:25:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:25:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:25:59,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:25:59,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409342765] [2023-12-25 13:25:59,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409342765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:25:59,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:25:59,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:25:59,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104919388] [2023-12-25 13:25:59,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:25:59,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:25:59,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:25:59,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:25:59,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:25:59,441 INFO L87 Difference]: Start difference. First operand 5131 states and 7821 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:25:59,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:25:59,784 INFO L93 Difference]: Finished difference Result 6493 states and 9907 transitions. [2023-12-25 13:25:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:25:59,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:25:59,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:25:59,789 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:25:59,789 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:25:59,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:25:59,790 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1701 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:25:59,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 3800 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:25:59,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:26:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:26:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.509654062751408) internal successors, (7506), 4972 states have internal predecessors, (7506), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:26:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7820 transitions. [2023-12-25 13:26:00,016 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7820 transitions. Word has length 1294 [2023-12-25 13:26:00,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:26:00,017 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7820 transitions. [2023-12-25 13:26:00,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:00,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7820 transitions. [2023-12-25 13:26:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:26:00,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:26:00,032 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:26:00,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2023-12-25 13:26:00,032 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:26:00,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:26:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash -905788899, now seen corresponding path program 1 times [2023-12-25 13:26:00,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:26:00,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028624544] [2023-12-25 13:26:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:26:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:26:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:26:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:26:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:26:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:26:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:26:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:26:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:26:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:26:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:26:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:26:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:26:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:26:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:06,362 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:26:06,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:06,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028624544] [2023-12-25 13:26:06,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028624544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:26:06,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:26:06,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:26:06,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931280282] [2023-12-25 13:26:06,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:26:06,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:26:06,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:06,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:26:06,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:26:06,364 INFO L87 Difference]: Start difference. First operand 5131 states and 7820 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:06,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:26:06,747 INFO L93 Difference]: Finished difference Result 6493 states and 9905 transitions. [2023-12-25 13:26:06,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:26:06,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:26:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:26:06,752 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:26:06,752 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:26:06,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:26:06,753 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1700 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:26:06,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 3800 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:26:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:26:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:26:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.509452936444087) internal successors, (7505), 4972 states have internal predecessors, (7505), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:26:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7819 transitions. [2023-12-25 13:26:06,978 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7819 transitions. Word has length 1294 [2023-12-25 13:26:06,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:26:06,978 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7819 transitions. [2023-12-25 13:26:06,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7819 transitions. [2023-12-25 13:26:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:26:06,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:26:06,992 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:26:06,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2023-12-25 13:26:06,993 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:26:06,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:26:06,993 INFO L85 PathProgramCache]: Analyzing trace with hash 239531679, now seen corresponding path program 1 times [2023-12-25 13:26:06,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:26:06,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244210838] [2023-12-25 13:26:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:06,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:26:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:26:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:26:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:26:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:26:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:26:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:26:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:26:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:26:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:26:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:26:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:26:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:26:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:26:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:26:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:13,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244210838] [2023-12-25 13:26:13,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244210838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:26:13,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:26:13,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:26:13,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274872869] [2023-12-25 13:26:13,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:26:13,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:26:13,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:13,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:26:13,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:26:13,599 INFO L87 Difference]: Start difference. First operand 5131 states and 7819 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:26:13,962 INFO L93 Difference]: Finished difference Result 6493 states and 9903 transitions. [2023-12-25 13:26:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:26:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:26:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:26:13,968 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:26:13,968 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:26:13,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:26:13,970 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 2917 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:26:13,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2917 Valid, 3790 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:26:13,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:26:14,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:26:14,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5092518101367658) internal successors, (7504), 4972 states have internal predecessors, (7504), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:26:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7818 transitions. [2023-12-25 13:26:14,214 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7818 transitions. Word has length 1294 [2023-12-25 13:26:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:26:14,215 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7818 transitions. [2023-12-25 13:26:14,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7818 transitions. [2023-12-25 13:26:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:26:14,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:26:14,229 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:26:14,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2023-12-25 13:26:14,229 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:26:14,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:26:14,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1651161635, now seen corresponding path program 1 times [2023-12-25 13:26:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:26:14,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868355984] [2023-12-25 13:26:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:26:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:26:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:26:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:26:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:26:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:26:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:26:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:26:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:26:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:26:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:26:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:26:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:26:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:26:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:22,063 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:26:22,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:22,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868355984] [2023-12-25 13:26:22,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868355984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:26:22,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:26:22,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:26:22,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385488154] [2023-12-25 13:26:22,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:26:22,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:26:22,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:22,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:26:22,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:26:22,065 INFO L87 Difference]: Start difference. First operand 5131 states and 7818 transitions. Second operand has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:22,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:26:22,395 INFO L93 Difference]: Finished difference Result 6493 states and 9901 transitions. [2023-12-25 13:26:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:26:22,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:26:22,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:26:22,401 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:26:22,401 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:26:22,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:26:22,403 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1204 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:26:22,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 3790 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:26:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:26:22,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:26:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5090506838294448) internal successors, (7503), 4972 states have internal predecessors, (7503), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:26:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7817 transitions. [2023-12-25 13:26:22,634 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7817 transitions. Word has length 1294 [2023-12-25 13:26:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:26:22,635 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7817 transitions. [2023-12-25 13:26:22,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:22,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7817 transitions. [2023-12-25 13:26:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:26:22,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:26:22,649 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:26:22,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2023-12-25 13:26:22,649 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:26:22,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:26:22,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2109736549, now seen corresponding path program 1 times [2023-12-25 13:26:22,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:26:22,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228533145] [2023-12-25 13:26:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:22,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:26:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:26:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:26:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:26:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:26:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:26:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:26:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:26:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:26:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:26:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:26:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:26:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:26:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:26:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:26:29,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:29,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228533145] [2023-12-25 13:26:29,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228533145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:26:29,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:26:29,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:26:29,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517985115] [2023-12-25 13:26:29,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:26:29,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:26:29,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:29,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:26:29,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:26:29,173 INFO L87 Difference]: Start difference. First operand 5131 states and 7817 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:26:29,525 INFO L93 Difference]: Finished difference Result 6493 states and 9899 transitions. [2023-12-25 13:26:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:26:29,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:26:29,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:26:29,531 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:26:29,531 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:26:29,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:26:29,533 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1697 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:26:29,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 3800 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:26:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:26:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:26:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.508849557522124) internal successors, (7502), 4972 states have internal predecessors, (7502), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:26:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7816 transitions. [2023-12-25 13:26:29,757 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7816 transitions. Word has length 1294 [2023-12-25 13:26:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:26:29,758 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7816 transitions. [2023-12-25 13:26:29,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:29,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7816 transitions. [2023-12-25 13:26:29,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:26:29,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:26:29,772 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:26:29,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2023-12-25 13:26:29,772 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:26:29,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:26:29,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1990778781, now seen corresponding path program 1 times [2023-12-25 13:26:29,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:26:29,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581138972] [2023-12-25 13:26:29,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:29,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:26:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:26:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:26:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:26:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:26:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:26:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:26:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:26:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:26:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:26:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:26:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:26:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:26:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:26:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:26:35,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:35,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581138972] [2023-12-25 13:26:35,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581138972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:26:35,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:26:35,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 13:26:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566242908] [2023-12-25 13:26:35,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:26:35,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 13:26:35,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 13:26:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:26:35,993 INFO L87 Difference]: Start difference. First operand 5131 states and 7816 transitions. Second operand has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:36,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:26:36,376 INFO L93 Difference]: Finished difference Result 6493 states and 9897 transitions. [2023-12-25 13:26:36,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:26:36,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:26:36,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:26:36,381 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:26:36,381 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:26:36,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:26:36,382 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1696 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:26:36,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 3800 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:26:36,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:26:36,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:26:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.508648431214803) internal successors, (7501), 4972 states have internal predecessors, (7501), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:26:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7815 transitions. [2023-12-25 13:26:36,606 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7815 transitions. Word has length 1294 [2023-12-25 13:26:36,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:26:36,607 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7815 transitions. [2023-12-25 13:26:36,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:36,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7815 transitions. [2023-12-25 13:26:36,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:26:36,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:26:36,621 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:26:36,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2023-12-25 13:26:36,621 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:26:36,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:26:36,622 INFO L85 PathProgramCache]: Analyzing trace with hash -213788709, now seen corresponding path program 1 times [2023-12-25 13:26:36,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:26:36,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714525279] [2023-12-25 13:26:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:36,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:26:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:26:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:26:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:26:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:26:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:26:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:26:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:26:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:26:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:26:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:26:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:26:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:26:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:26:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:26:43,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:43,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714525279] [2023-12-25 13:26:43,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714525279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:26:43,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:26:43,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:26:43,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375266278] [2023-12-25 13:26:43,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:26:43,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:26:43,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:43,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:26:43,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:26:43,343 INFO L87 Difference]: Start difference. First operand 5131 states and 7815 transitions. Second operand has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:26:43,673 INFO L93 Difference]: Finished difference Result 6493 states and 9895 transitions. [2023-12-25 13:26:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:26:43,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1294 [2023-12-25 13:26:43,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:26:43,679 INFO L225 Difference]: With dead ends: 6493 [2023-12-25 13:26:43,679 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 13:26:43,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 13:26:43,681 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 1173 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:26:43,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 3790 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:26:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 13:26:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2023-12-25 13:26:43,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4972 states have (on average 1.5084473049074818) internal successors, (7500), 4972 states have internal predecessors, (7500), 157 states have call successors, (157), 1 states have call predecessors, (157), 1 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-25 13:26:43,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7814 transitions. [2023-12-25 13:26:43,910 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7814 transitions. Word has length 1294 [2023-12-25 13:26:43,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:26:43,910 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7814 transitions. [2023-12-25 13:26:43,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:26:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7814 transitions. [2023-12-25 13:26:43,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-25 13:26:43,924 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:26:43,925 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:26:43,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2023-12-25 13:26:43,925 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:26:43,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:26:43,925 INFO L85 PathProgramCache]: Analyzing trace with hash 488830105, now seen corresponding path program 1 times [2023-12-25 13:26:43,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:26:43,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693178233] [2023-12-25 13:26:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:26:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:26:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:26:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:26:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:26:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:26:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:26:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:26:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:26:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-12-25 13:26:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 966 [2023-12-25 13:26:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2023-12-25 13:26:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-12-25 13:26:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-12-25 13:26:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-12-25 13:26:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-12-25 13:26:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:26:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:26:59,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:26:59,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693178233] [2023-12-25 13:26:59,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693178233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:26:59,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:26:59,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:26:59,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211381097] [2023-12-25 13:26:59,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:26:59,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:26:59,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:26:59,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:26:59,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:26:59,017 INFO L87 Difference]: Start difference. First operand 5131 states and 7814 transitions. Second operand has 6 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:27:00,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:27:00,136 INFO L93 Difference]: Finished difference Result 9842 states and 14903 transitions. [2023-12-25 13:27:00,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:27:00,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1294 [2023-12-25 13:27:00,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:27:00,144 INFO L225 Difference]: With dead ends: 9842 [2023-12-25 13:27:00,144 INFO L226 Difference]: Without dead ends: 8480 [2023-12-25 13:27:00,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:27:00,145 INFO L413 NwaCegarLoop]: 1637 mSDtfsCounter, 1887 mSDsluCounter, 5314 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 6951 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:27:00,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 6951 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:27:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8480 states. [2023-12-25 13:27:00,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8480 to 7477. [2023-12-25 13:27:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7477 states, 7243 states have (on average 1.5028303189286207) internal successors, (10885), 7243 states have internal predecessors, (10885), 232 states have call successors, (232), 1 states have call predecessors, (232), 1 states have return successors, (232), 232 states have call predecessors, (232), 232 states have call successors, (232) [2023-12-25 13:27:00,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7477 states to 7477 states and 11349 transitions. [2023-12-25 13:27:00,473 INFO L78 Accepts]: Start accepts. Automaton has 7477 states and 11349 transitions. Word has length 1294 [2023-12-25 13:27:00,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:27:00,474 INFO L495 AbstractCegarLoop]: Abstraction has 7477 states and 11349 transitions. [2023-12-25 13:27:00,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:27:00,474 INFO L276 IsEmpty]: Start isEmpty. Operand 7477 states and 11349 transitions. [2023-12-25 13:27:00,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1296 [2023-12-25 13:27:00,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:27:00,490 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:27:00,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2023-12-25 13:27:00,490 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:27:00,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:27:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash 32598725, now seen corresponding path program 1 times [2023-12-25 13:27:00,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:27:00,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334826432] [2023-12-25 13:27:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:27:00,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:27:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:27:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:27:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:27:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:27:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:27:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:27:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:27:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2023-12-25 13:27:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2023-12-25 13:27:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:27:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:27:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:27:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2023-12-25 13:27:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1038 [2023-12-25 13:27:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:27:19,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:27:19,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334826432] [2023-12-25 13:27:19,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334826432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:27:19,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:27:19,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:27:19,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190865434] [2023-12-25 13:27:19,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:27:19,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:27:19,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:27:19,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:27:19,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:27:19,489 INFO L87 Difference]: Start difference. First operand 7477 states and 11349 transitions. Second operand has 6 states, 6 states have (on average 204.66666666666666) internal successors, (1228), 6 states have internal predecessors, (1228), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:27:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:27:20,870 INFO L93 Difference]: Finished difference Result 8919 states and 13561 transitions. [2023-12-25 13:27:20,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:27:20,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 204.66666666666666) internal successors, (1228), 6 states have internal predecessors, (1228), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1295 [2023-12-25 13:27:20,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:27:20,880 INFO L225 Difference]: With dead ends: 8919 [2023-12-25 13:27:20,880 INFO L226 Difference]: Without dead ends: 7557 [2023-12-25 13:27:20,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:27:20,883 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 3627 mSDsluCounter, 4601 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3634 SdHoareTripleChecker+Valid, 6146 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:27:20,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3634 Valid, 6146 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 13:27:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7557 states. [2023-12-25 13:27:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7557 to 7478. [2023-12-25 13:27:21,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7478 states, 7244 states have (on average 1.5027609055770292) internal successors, (10886), 7244 states have internal predecessors, (10886), 232 states have call successors, (232), 1 states have call predecessors, (232), 1 states have return successors, (232), 232 states have call predecessors, (232), 232 states have call successors, (232) [2023-12-25 13:27:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 11350 transitions. [2023-12-25 13:27:21,284 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 11350 transitions. Word has length 1295 [2023-12-25 13:27:21,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:27:21,285 INFO L495 AbstractCegarLoop]: Abstraction has 7478 states and 11350 transitions. [2023-12-25 13:27:21,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.66666666666666) internal successors, (1228), 6 states have internal predecessors, (1228), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:27:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 11350 transitions. [2023-12-25 13:27:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1296 [2023-12-25 13:27:21,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:27:21,304 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:27:21,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2023-12-25 13:27:21,304 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:27:21,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:27:21,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1142184761, now seen corresponding path program 1 times [2023-12-25 13:27:21,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:27:21,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337141515] [2023-12-25 13:27:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:27:21,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:27:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:27:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:27:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:27:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:27:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:27:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:27:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:27:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2023-12-25 13:27:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2023-12-25 13:27:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:27:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:27:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:27:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2023-12-25 13:27:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1038 [2023-12-25 13:27:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2023-12-25 13:27:46,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:27:46,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337141515] [2023-12-25 13:27:46,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337141515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:27:46,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:27:46,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 13:27:46,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417860818] [2023-12-25 13:27:46,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:27:46,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 13:27:46,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:27:46,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 13:27:46,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:27:46,526 INFO L87 Difference]: Start difference. First operand 7478 states and 11350 transitions. Second operand has 10 states, 10 states have (on average 122.5) internal successors, (1225), 10 states have internal predecessors, (1225), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 13:27:51,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:27:51,041 INFO L93 Difference]: Finished difference Result 18046 states and 27350 transitions. [2023-12-25 13:27:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 13:27:51,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 122.5) internal successors, (1225), 10 states have internal predecessors, (1225), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 1295 [2023-12-25 13:27:51,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:27:51,056 INFO L225 Difference]: With dead ends: 18046 [2023-12-25 13:27:51,056 INFO L226 Difference]: Without dead ends: 14756 [2023-12-25 13:27:51,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2023-12-25 13:27:51,073 INFO L413 NwaCegarLoop]: 3873 mSDtfsCounter, 5978 mSDsluCounter, 21190 mSDsCounter, 0 mSdLazyCounter, 8593 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5981 SdHoareTripleChecker+Valid, 25063 SdHoareTripleChecker+Invalid, 8614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 8593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-25 13:27:51,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5981 Valid, 25063 Invalid, 8614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 8593 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-25 13:27:51,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14756 states. [2023-12-25 13:27:51,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14756 to 8049. [2023-12-25 13:27:51,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8049 states, 7773 states have (on average 1.5019940820789914) internal successors, (11675), 7773 states have internal predecessors, (11675), 274 states have call successors, (274), 1 states have call predecessors, (274), 1 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2023-12-25 13:27:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8049 states to 8049 states and 12223 transitions. [2023-12-25 13:27:51,498 INFO L78 Accepts]: Start accepts. Automaton has 8049 states and 12223 transitions. Word has length 1295 [2023-12-25 13:27:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:27:51,498 INFO L495 AbstractCegarLoop]: Abstraction has 8049 states and 12223 transitions. [2023-12-25 13:27:51,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 122.5) internal successors, (1225), 10 states have internal predecessors, (1225), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 13:27:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8049 states and 12223 transitions. [2023-12-25 13:27:51,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1296 [2023-12-25 13:27:51,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:27:51,516 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:27:51,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2023-12-25 13:27:51,516 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:27:51,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:27:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1381458835, now seen corresponding path program 1 times [2023-12-25 13:27:51,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:27:51,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241504224] [2023-12-25 13:27:51,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:27:51,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:27:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:27:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:27:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:27:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:27:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:27:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:27:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:27:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2023-12-25 13:27:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2023-12-25 13:27:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:27:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:27:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:27:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2023-12-25 13:27:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1038 [2023-12-25 13:27:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:27:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2023-12-25 13:27:53,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:27:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241504224] [2023-12-25 13:27:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241504224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:27:53,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:27:53,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 13:27:53,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643625925] [2023-12-25 13:27:53,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:27:53,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:27:53,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:27:53,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:27:53,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:27:53,793 INFO L87 Difference]: Start difference. First operand 8049 states and 12223 transitions. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 13:27:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:27:54,249 INFO L93 Difference]: Finished difference Result 12669 states and 19247 transitions. [2023-12-25 13:27:54,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:27:54,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 1295 [2023-12-25 13:27:54,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:27:54,258 INFO L225 Difference]: With dead ends: 12669 [2023-12-25 13:27:54,258 INFO L226 Difference]: Without dead ends: 8124 [2023-12-25 13:27:54,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 13:27:54,262 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 1 mSDsluCounter, 3921 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:27:54,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5896 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:27:54,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8124 states. [2023-12-25 13:27:54,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8124 to 8099. [2023-12-25 13:27:54,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 7823 states have (on average 1.4987856321104436) internal successors, (11725), 7823 states have internal predecessors, (11725), 274 states have call successors, (274), 1 states have call predecessors, (274), 1 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2023-12-25 13:27:54,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 12273 transitions. [2023-12-25 13:27:54,659 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 12273 transitions. Word has length 1295 [2023-12-25 13:27:54,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:27:54,659 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 12273 transitions. [2023-12-25 13:27:54,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 13:27:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 12273 transitions. [2023-12-25 13:27:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1297 [2023-12-25 13:27:54,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:27:54,677 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:27:54,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2023-12-25 13:27:54,677 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:27:54,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:27:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1398745749, now seen corresponding path program 1 times [2023-12-25 13:27:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:27:54,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735625451] [2023-12-25 13:27:54,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:27:54,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:28:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:28:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:28:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:28:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:28:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:28:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:28:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:28:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2023-12-25 13:28:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2023-12-25 13:28:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:28:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:28:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:28:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1026 [2023-12-25 13:28:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1039 [2023-12-25 13:28:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 320 proven. 3 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:28:20,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:28:20,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735625451] [2023-12-25 13:28:20,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735625451] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:28:20,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46134777] [2023-12-25 13:28:20,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:28:20,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:28:20,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:28:20,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:28:20,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-25 13:28:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:22,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 8850 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 13:28:22,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:28:22,686 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2023-12-25 13:28:22,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:28:22,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46134777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:28:22,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:28:22,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2023-12-25 13:28:22,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211074343] [2023-12-25 13:28:22,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:28:22,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:28:22,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:28:22,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:28:22,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-25 13:28:22,689 INFO L87 Difference]: Start difference. First operand 8099 states and 12273 transitions. Second operand has 9 states, 8 states have (on average 116.75) internal successors, (934), 8 states have internal predecessors, (934), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:28:23,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:28:23,274 INFO L93 Difference]: Finished difference Result 15682 states and 23680 transitions. [2023-12-25 13:28:23,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:28:23,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 116.75) internal successors, (934), 8 states have internal predecessors, (934), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 1296 [2023-12-25 13:28:23,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:28:23,282 INFO L225 Difference]: With dead ends: 15682 [2023-12-25 13:28:23,283 INFO L226 Difference]: Without dead ends: 8066 [2023-12-25 13:28:23,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1317 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2023-12-25 13:28:23,289 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 3596 mSDsluCounter, 9744 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3603 SdHoareTripleChecker+Valid, 11702 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:28:23,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3603 Valid, 11702 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:28:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8066 states. [2023-12-25 13:28:23,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 7968. [2023-12-25 13:28:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7968 states, 7692 states have (on average 1.4923296931877275) internal successors, (11479), 7692 states have internal predecessors, (11479), 274 states have call successors, (274), 1 states have call predecessors, (274), 1 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2023-12-25 13:28:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7968 states to 7968 states and 12027 transitions. [2023-12-25 13:28:23,753 INFO L78 Accepts]: Start accepts. Automaton has 7968 states and 12027 transitions. Word has length 1296 [2023-12-25 13:28:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:28:23,753 INFO L495 AbstractCegarLoop]: Abstraction has 7968 states and 12027 transitions. [2023-12-25 13:28:23,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 116.75) internal successors, (934), 8 states have internal predecessors, (934), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:28:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 7968 states and 12027 transitions. [2023-12-25 13:28:23,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1297 [2023-12-25 13:28:23,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:28:23,771 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:28:23,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-25 13:28:23,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2023-12-25 13:28:23,973 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:28:23,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:28:23,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1680612961, now seen corresponding path program 1 times [2023-12-25 13:28:23,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:28:23,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93247737] [2023-12-25 13:28:23,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:28:23,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:28:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:28:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:28:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:28:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-25 13:28:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-25 13:28:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-25 13:28:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-25 13:28:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2023-12-25 13:28:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2023-12-25 13:28:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:28:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:28:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:28:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1026 [2023-12-25 13:28:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1039 [2023-12-25 13:28:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2023-12-25 13:28:39,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:28:39,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93247737] [2023-12-25 13:28:39,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93247737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:28:39,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:28:39,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:28:39,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079670879] [2023-12-25 13:28:39,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:28:39,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:28:39,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:28:39,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:28:39,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:28:39,278 INFO L87 Difference]: Start difference. First operand 7968 states and 12027 transitions. Second operand has 8 states, 8 states have (on average 123.125) internal successors, (985), 8 states have internal predecessors, (985), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:28:40,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:28:40,147 INFO L93 Difference]: Finished difference Result 15809 states and 23889 transitions. [2023-12-25 13:28:40,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:28:40,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 123.125) internal successors, (985), 8 states have internal predecessors, (985), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1296 [2023-12-25 13:28:40,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:28:40,161 INFO L225 Difference]: With dead ends: 15809 [2023-12-25 13:28:40,162 INFO L226 Difference]: Without dead ends: 13775 [2023-12-25 13:28:40,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:28:40,166 INFO L413 NwaCegarLoop]: 5174 mSDtfsCounter, 4691 mSDsluCounter, 24942 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 30116 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:28:40,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4705 Valid, 30116 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:28:40,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13775 states. [2023-12-25 13:28:40,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13775 to 9560. [2023-12-25 13:28:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9560 states, 9196 states have (on average 1.4891257068290562) internal successors, (13694), 9196 states have internal predecessors, (13694), 362 states have call successors, (362), 1 states have call predecessors, (362), 1 states have return successors, (362), 362 states have call predecessors, (362), 362 states have call successors, (362) [2023-12-25 13:28:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9560 states to 9560 states and 14418 transitions. [2023-12-25 13:28:40,705 INFO L78 Accepts]: Start accepts. Automaton has 9560 states and 14418 transitions. Word has length 1296 [2023-12-25 13:28:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:28:40,705 INFO L495 AbstractCegarLoop]: Abstraction has 9560 states and 14418 transitions. [2023-12-25 13:28:40,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 123.125) internal successors, (985), 8 states have internal predecessors, (985), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:28:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 9560 states and 14418 transitions. [2023-12-25 13:28:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1297 [2023-12-25 13:28:40,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:28:40,724 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:28:40,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2023-12-25 13:28:40,724 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:28:40,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:28:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1787436067, now seen corresponding path program 1 times [2023-12-25 13:28:40,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:28:40,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272676319] [2023-12-25 13:28:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:28:40,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:28:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:28:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:28:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:28:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-25 13:28:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-25 13:28:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-25 13:28:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-25 13:28:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2023-12-25 13:28:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2023-12-25 13:28:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 986 [2023-12-25 13:28:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-12-25 13:28:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-12-25 13:28:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1026 [2023-12-25 13:28:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1039 [2023-12-25 13:28:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:28:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-12-25 13:28:56,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:28:56,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272676319] [2023-12-25 13:28:56,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272676319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:28:56,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:28:56,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 13:28:56,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309230283] [2023-12-25 13:28:56,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:28:56,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 13:28:56,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:28:56,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 13:28:56,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:28:56,172 INFO L87 Difference]: Start difference. First operand 9560 states and 14418 transitions. Second operand has 10 states, 10 states have (on average 98.9) internal successors, (989), 10 states have internal predecessors, (989), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:29:00,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:29:00,986 INFO L93 Difference]: Finished difference Result 23855 states and 35998 transitions. [2023-12-25 13:29:00,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 13:29:00,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 98.9) internal successors, (989), 10 states have internal predecessors, (989), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1296 [2023-12-25 13:29:00,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:29:01,007 INFO L225 Difference]: With dead ends: 23855 [2023-12-25 13:29:01,007 INFO L226 Difference]: Without dead ends: 21830 [2023-12-25 13:29:01,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-25 13:29:01,012 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 17573 mSDsluCounter, 10927 mSDsCounter, 0 mSdLazyCounter, 4554 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17587 SdHoareTripleChecker+Valid, 12522 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:29:01,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17587 Valid, 12522 Invalid, 4636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4554 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-25 13:29:01,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21830 states. [2023-12-25 13:29:01,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21830 to 12342. [2023-12-25 13:29:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12342 states, 11802 states have (on average 1.4824605998983222) internal successors, (17496), 11802 states have internal predecessors, (17496), 538 states have call successors, (538), 1 states have call predecessors, (538), 1 states have return successors, (538), 538 states have call predecessors, (538), 538 states have call successors, (538) [2023-12-25 13:29:01,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12342 states to 12342 states and 18572 transitions. [2023-12-25 13:29:01,960 INFO L78 Accepts]: Start accepts. Automaton has 12342 states and 18572 transitions. Word has length 1296 [2023-12-25 13:29:01,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:29:01,960 INFO L495 AbstractCegarLoop]: Abstraction has 12342 states and 18572 transitions. [2023-12-25 13:29:01,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.9) internal successors, (989), 10 states have internal predecessors, (989), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:29:01,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12342 states and 18572 transitions. [2023-12-25 13:29:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1298 [2023-12-25 13:29:01,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:29:01,982 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:29:01,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2023-12-25 13:29:01,982 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:29:01,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:29:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash 186602109, now seen corresponding path program 1 times [2023-12-25 13:29:01,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:29:01,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284714590] [2023-12-25 13:29:01,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:01,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:29:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:29:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:29:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:29:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:29:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:29:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:29:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:29:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:29:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:29:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2023-12-25 13:29:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2023-12-25 13:29:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1014 [2023-12-25 13:29:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1027 [2023-12-25 13:29:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2023-12-25 13:29:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:04,736 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2023-12-25 13:29:04,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:29:04,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284714590] [2023-12-25 13:29:04,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284714590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:29:04,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:29:04,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:29:04,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786094558] [2023-12-25 13:29:04,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:29:04,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:29:04,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:29:04,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:29:04,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:29:04,738 INFO L87 Difference]: Start difference. First operand 12342 states and 18572 transitions. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:29:06,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:29:06,816 INFO L93 Difference]: Finished difference Result 18678 states and 28151 transitions. [2023-12-25 13:29:06,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:29:06,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1297 [2023-12-25 13:29:06,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:29:06,830 INFO L225 Difference]: With dead ends: 18678 [2023-12-25 13:29:06,830 INFO L226 Difference]: Without dead ends: 15524 [2023-12-25 13:29:06,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:29:06,834 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 3461 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 6546 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 13:29:06,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3468 Valid, 6546 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 13:29:06,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15524 states. [2023-12-25 13:29:07,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15524 to 12354. [2023-12-25 13:29:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 11814 states have (on average 1.4819705434230575) internal successors, (17508), 11814 states have internal predecessors, (17508), 538 states have call successors, (538), 1 states have call predecessors, (538), 1 states have return successors, (538), 538 states have call predecessors, (538), 538 states have call successors, (538) [2023-12-25 13:29:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 18584 transitions. [2023-12-25 13:29:07,738 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 18584 transitions. Word has length 1297 [2023-12-25 13:29:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:29:07,738 INFO L495 AbstractCegarLoop]: Abstraction has 12354 states and 18584 transitions. [2023-12-25 13:29:07,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:29:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 18584 transitions. [2023-12-25 13:29:07,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1298 [2023-12-25 13:29:07,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:29:07,760 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:29:07,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2023-12-25 13:29:07,761 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:29:07,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:29:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1208351813, now seen corresponding path program 1 times [2023-12-25 13:29:07,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:29:07,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515641328] [2023-12-25 13:29:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:07,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:29:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:29:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:29:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:29:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:29:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:29:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:29:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:29:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:29:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:29:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2023-12-25 13:29:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2023-12-25 13:29:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1014 [2023-12-25 13:29:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1027 [2023-12-25 13:29:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2023-12-25 13:29:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:29:26,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:29:26,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515641328] [2023-12-25 13:29:26,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515641328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:29:26,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:29:26,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 13:29:26,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434371351] [2023-12-25 13:29:26,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:29:26,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 13:29:26,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:29:26,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 13:29:26,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 13:29:26,909 INFO L87 Difference]: Start difference. First operand 12354 states and 18584 transitions. Second operand has 7 states, 7 states have (on average 175.71428571428572) internal successors, (1230), 7 states have internal predecessors, (1230), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:29:29,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:29:29,530 INFO L93 Difference]: Finished difference Result 15204 states and 22929 transitions. [2023-12-25 13:29:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 13:29:29,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 175.71428571428572) internal successors, (1230), 7 states have internal predecessors, (1230), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1297 [2023-12-25 13:29:29,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:29:29,546 INFO L225 Difference]: With dead ends: 15204 [2023-12-25 13:29:29,546 INFO L226 Difference]: Without dead ends: 13793 [2023-12-25 13:29:29,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:29:29,550 INFO L413 NwaCegarLoop]: 2717 mSDtfsCounter, 4383 mSDsluCounter, 8451 mSDsCounter, 0 mSdLazyCounter, 3414 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 11168 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 13:29:29,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 11168 Invalid, 3427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3414 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 13:29:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13793 states. [2023-12-25 13:29:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13793 to 12404. [2023-12-25 13:29:30,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12404 states, 11862 states have (on average 1.4819591974371944) internal successors, (17579), 11862 states have internal predecessors, (17579), 540 states have call successors, (540), 1 states have call predecessors, (540), 1 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2023-12-25 13:29:30,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12404 states to 12404 states and 18659 transitions. [2023-12-25 13:29:30,461 INFO L78 Accepts]: Start accepts. Automaton has 12404 states and 18659 transitions. Word has length 1297 [2023-12-25 13:29:30,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:29:30,461 INFO L495 AbstractCegarLoop]: Abstraction has 12404 states and 18659 transitions. [2023-12-25 13:29:30,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 175.71428571428572) internal successors, (1230), 7 states have internal predecessors, (1230), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:29:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 12404 states and 18659 transitions. [2023-12-25 13:29:30,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2023-12-25 13:29:30,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:29:30,486 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:29:30,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2023-12-25 13:29:30,486 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:29:30,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:29:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash 831768025, now seen corresponding path program 1 times [2023-12-25 13:29:30,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:29:30,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690454636] [2023-12-25 13:29:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:30,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:29:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-25 13:29:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-25 13:29:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-25 13:29:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-25 13:29:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-25 13:29:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-25 13:29:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-25 13:29:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:29:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:29:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2023-12-25 13:29:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2023-12-25 13:29:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-12-25 13:29:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1028 [2023-12-25 13:29:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2023-12-25 13:29:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 322 proven. 3 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:29:54,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:29:54,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690454636] [2023-12-25 13:29:54,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690454636] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:29:54,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738504053] [2023-12-25 13:29:54,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:29:54,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:29:54,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:29:54,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:29:54,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-25 13:29:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:29:56,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 8858 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 13:29:56,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:29:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 521 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-25 13:29:57,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:29:57,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738504053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:29:57,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:29:57,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-12-25 13:29:57,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30621241] [2023-12-25 13:29:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:29:57,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:29:57,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:29:57,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:29:57,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-25 13:29:57,936 INFO L87 Difference]: Start difference. First operand 12404 states and 18659 transitions. Second operand has 6 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:29:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:29:59,833 INFO L93 Difference]: Finished difference Result 16881 states and 25444 transitions. [2023-12-25 13:29:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 13:29:59,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1298 [2023-12-25 13:29:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:29:59,851 INFO L225 Difference]: With dead ends: 16881 [2023-12-25 13:29:59,851 INFO L226 Difference]: Without dead ends: 15420 [2023-12-25 13:29:59,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1337 GetRequests, 1323 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-12-25 13:29:59,857 INFO L413 NwaCegarLoop]: 1517 mSDtfsCounter, 5510 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:29:59,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5510 Valid, 5002 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 13:29:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15420 states. [2023-12-25 13:30:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15420 to 15351. [2023-12-25 13:30:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15351 states, 14809 states have (on average 1.4878114660004051) internal successors, (22033), 14809 states have internal predecessors, (22033), 540 states have call successors, (540), 1 states have call predecessors, (540), 1 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2023-12-25 13:30:00,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15351 states to 15351 states and 23113 transitions. [2023-12-25 13:30:00,903 INFO L78 Accepts]: Start accepts. Automaton has 15351 states and 23113 transitions. Word has length 1298 [2023-12-25 13:30:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:30:00,903 INFO L495 AbstractCegarLoop]: Abstraction has 15351 states and 23113 transitions. [2023-12-25 13:30:00,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:30:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 15351 states and 23113 transitions. [2023-12-25 13:30:00,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2023-12-25 13:30:00,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:30:00,931 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:30:00,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-25 13:30:01,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable133 [2023-12-25 13:30:01,154 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:30:01,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:30:01,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1981009609, now seen corresponding path program 1 times [2023-12-25 13:30:01,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:30:01,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892911157] [2023-12-25 13:30:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:30:01,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:30:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:30:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:30:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:30:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-25 13:30:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-25 13:30:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-25 13:30:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-25 13:30:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:30:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:30:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2023-12-25 13:30:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2023-12-25 13:30:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-12-25 13:30:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1028 [2023-12-25 13:30:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2023-12-25 13:30:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 322 proven. 3 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:30:26,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:30:26,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892911157] [2023-12-25 13:30:26,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892911157] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:30:26,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289220680] [2023-12-25 13:30:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:30:26,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:30:26,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:30:26,820 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:30:26,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-25 13:30:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:28,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 8858 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 13:30:28,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:30:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2023-12-25 13:30:28,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:30:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289220680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:30:28,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:30:28,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2023-12-25 13:30:28,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863706154] [2023-12-25 13:30:28,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:30:28,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:30:28,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:30:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:30:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-25 13:30:28,939 INFO L87 Difference]: Start difference. First operand 15351 states and 23113 transitions. Second operand has 9 states, 8 states have (on average 118.375) internal successors, (947), 9 states have internal predecessors, (947), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 13:30:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:30:30,091 INFO L93 Difference]: Finished difference Result 27584 states and 41573 transitions. [2023-12-25 13:30:30,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:30:30,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 118.375) internal successors, (947), 9 states have internal predecessors, (947), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 1298 [2023-12-25 13:30:30,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:30:30,108 INFO L225 Difference]: With dead ends: 27584 [2023-12-25 13:30:30,108 INFO L226 Difference]: Without dead ends: 15351 [2023-12-25 13:30:30,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1337 GetRequests, 1319 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2023-12-25 13:30:30,119 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 1804 mSDsluCounter, 9753 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 11708 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:30:30,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 11708 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:30:30,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15351 states. [2023-12-25 13:30:31,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15351 to 15155. [2023-12-25 13:30:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15155 states, 14613 states have (on average 1.4876479846711832) internal successors, (21739), 14613 states have internal predecessors, (21739), 540 states have call successors, (540), 1 states have call predecessors, (540), 1 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2023-12-25 13:30:31,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15155 states to 15155 states and 22819 transitions. [2023-12-25 13:30:31,114 INFO L78 Accepts]: Start accepts. Automaton has 15155 states and 22819 transitions. Word has length 1298 [2023-12-25 13:30:31,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:30:31,115 INFO L495 AbstractCegarLoop]: Abstraction has 15155 states and 22819 transitions. [2023-12-25 13:30:31,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 118.375) internal successors, (947), 9 states have internal predecessors, (947), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 13:30:31,115 INFO L276 IsEmpty]: Start isEmpty. Operand 15155 states and 22819 transitions. [2023-12-25 13:30:31,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2023-12-25 13:30:31,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:30:31,140 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:30:31,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-25 13:30:31,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:30:31,352 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:30:31,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:30:31,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1852421559, now seen corresponding path program 1 times [2023-12-25 13:30:31,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:30:31,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567376298] [2023-12-25 13:30:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:30:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:30:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:30:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:30:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:30:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-25 13:30:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-25 13:30:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-25 13:30:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-25 13:30:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:30:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:30:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2023-12-25 13:30:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2023-12-25 13:30:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-12-25 13:30:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1028 [2023-12-25 13:30:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2023-12-25 13:30:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:30:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2023-12-25 13:30:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:30:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567376298] [2023-12-25 13:30:56,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567376298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:30:56,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:30:56,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 13:30:56,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753283850] [2023-12-25 13:30:56,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:30:56,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 13:30:56,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:30:56,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 13:30:56,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:30:56,338 INFO L87 Difference]: Start difference. First operand 15155 states and 22819 transitions. Second operand has 10 states, 10 states have (on average 120.4) internal successors, (1204), 10 states have internal predecessors, (1204), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 13:31:00,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:31:00,535 INFO L93 Difference]: Finished difference Result 34604 states and 52147 transitions. [2023-12-25 13:31:00,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 13:31:00,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 120.4) internal successors, (1204), 10 states have internal predecessors, (1204), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1298 [2023-12-25 13:31:00,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:31:00,565 INFO L225 Difference]: With dead ends: 34604 [2023-12-25 13:31:00,565 INFO L226 Difference]: Without dead ends: 28223 [2023-12-25 13:31:00,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2023-12-25 13:31:00,576 INFO L413 NwaCegarLoop]: 2806 mSDtfsCounter, 6608 mSDsluCounter, 15777 mSDsCounter, 0 mSdLazyCounter, 6331 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6611 SdHoareTripleChecker+Valid, 18583 SdHoareTripleChecker+Invalid, 6351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 13:31:00,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6611 Valid, 18583 Invalid, 6351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 6331 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 13:31:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28223 states. [2023-12-25 13:31:01,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28223 to 15264. [2023-12-25 13:31:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15264 states, 14722 states have (on average 1.486482814834941) internal successors, (21884), 14722 states have internal predecessors, (21884), 540 states have call successors, (540), 1 states have call predecessors, (540), 1 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2023-12-25 13:31:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15264 states to 15264 states and 22964 transitions. [2023-12-25 13:31:01,625 INFO L78 Accepts]: Start accepts. Automaton has 15264 states and 22964 transitions. Word has length 1298 [2023-12-25 13:31:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:31:01,626 INFO L495 AbstractCegarLoop]: Abstraction has 15264 states and 22964 transitions. [2023-12-25 13:31:01,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.4) internal successors, (1204), 10 states have internal predecessors, (1204), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 13:31:01,626 INFO L276 IsEmpty]: Start isEmpty. Operand 15264 states and 22964 transitions. [2023-12-25 13:31:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2023-12-25 13:31:01,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:31:01,652 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:31:01,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2023-12-25 13:31:01,652 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:31:01,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:31:01,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1959151111, now seen corresponding path program 1 times [2023-12-25 13:31:01,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:31:01,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339843118] [2023-12-25 13:31:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:31:01,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:31:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:31:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:31:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:31:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-25 13:31:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-25 13:31:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-25 13:31:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-25 13:31:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:31:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:31:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2023-12-25 13:31:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2023-12-25 13:31:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-12-25 13:31:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1028 [2023-12-25 13:31:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2023-12-25 13:31:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:26,020 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2023-12-25 13:31:26,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:31:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339843118] [2023-12-25 13:31:26,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339843118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:31:26,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:31:26,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 13:31:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684507528] [2023-12-25 13:31:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:31:26,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 13:31:26,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:31:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 13:31:26,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 13:31:26,022 INFO L87 Difference]: Start difference. First operand 15264 states and 22964 transitions. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:31:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:31:29,057 INFO L93 Difference]: Finished difference Result 33970 states and 51093 transitions. [2023-12-25 13:31:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 13:31:29,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1298 [2023-12-25 13:31:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:31:29,085 INFO L225 Difference]: With dead ends: 33970 [2023-12-25 13:31:29,085 INFO L226 Difference]: Without dead ends: 27994 [2023-12-25 13:31:29,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-25 13:31:29,095 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 4842 mSDsluCounter, 6793 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 8416 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 13:31:29,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4849 Valid, 8416 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 13:31:29,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27994 states. [2023-12-25 13:31:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27994 to 27886. [2023-12-25 13:31:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27886 states, 26900 states have (on average 1.4856877323420075) internal successors, (39965), 26900 states have internal predecessors, (39965), 984 states have call successors, (984), 1 states have call predecessors, (984), 1 states have return successors, (984), 984 states have call predecessors, (984), 984 states have call successors, (984) [2023-12-25 13:31:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27886 states to 27886 states and 41933 transitions. [2023-12-25 13:31:30,898 INFO L78 Accepts]: Start accepts. Automaton has 27886 states and 41933 transitions. Word has length 1298 [2023-12-25 13:31:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:31:30,899 INFO L495 AbstractCegarLoop]: Abstraction has 27886 states and 41933 transitions. [2023-12-25 13:31:30,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:31:30,899 INFO L276 IsEmpty]: Start isEmpty. Operand 27886 states and 41933 transitions. [2023-12-25 13:31:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2023-12-25 13:31:30,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:31:30,943 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:31:30,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2023-12-25 13:31:30,943 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:31:30,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:31:30,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1536540427, now seen corresponding path program 1 times [2023-12-25 13:31:30,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:31:30,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744289895] [2023-12-25 13:31:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:31:30,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:31:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:31:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:31:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:31:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-25 13:31:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-25 13:31:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-25 13:31:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-25 13:31:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-12-25 13:31:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 968 [2023-12-25 13:31:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2023-12-25 13:31:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2023-12-25 13:31:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-12-25 13:31:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1028 [2023-12-25 13:31:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2023-12-25 13:31:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 280 proven. 1 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-25 13:31:57,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:31:57,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744289895] [2023-12-25 13:31:57,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744289895] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:31:57,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865842850] [2023-12-25 13:31:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:31:57,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:31:57,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:31:57,343 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:31:57,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-25 13:31:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:31:59,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 8859 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 13:31:59,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:31:59,478 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2023-12-25 13:31:59,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:31:59,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865842850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:31:59,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:31:59,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2023-12-25 13:31:59,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604930840] [2023-12-25 13:31:59,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:31:59,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:31:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:31:59,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:31:59,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:31:59,481 INFO L87 Difference]: Start difference. First operand 27886 states and 41933 transitions. Second operand has 9 states, 8 states have (on average 121.625) internal successors, (973), 9 states have internal predecessors, (973), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 13:32:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:32:01,650 INFO L93 Difference]: Finished difference Result 44114 states and 65971 transitions. [2023-12-25 13:32:01,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:32:01,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 121.625) internal successors, (973), 9 states have internal predecessors, (973), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 1298 [2023-12-25 13:32:01,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:32:01,683 INFO L225 Difference]: With dead ends: 44114 [2023-12-25 13:32:01,683 INFO L226 Difference]: Without dead ends: 27886 [2023-12-25 13:32:01,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 1319 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:32:01,698 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1803 mSDsluCounter, 9748 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 11702 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:32:01,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 11702 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:32:01,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27886 states. [2023-12-25 13:32:03,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27886 to 27886. [2023-12-25 13:32:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27886 states, 26900 states have (on average 1.4748327137546469) internal successors, (39673), 26900 states have internal predecessors, (39673), 984 states have call successors, (984), 1 states have call predecessors, (984), 1 states have return successors, (984), 984 states have call predecessors, (984), 984 states have call successors, (984) [2023-12-25 13:32:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27886 states to 27886 states and 41641 transitions. [2023-12-25 13:32:03,579 INFO L78 Accepts]: Start accepts. Automaton has 27886 states and 41641 transitions. Word has length 1298 [2023-12-25 13:32:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:32:03,579 INFO L495 AbstractCegarLoop]: Abstraction has 27886 states and 41641 transitions. [2023-12-25 13:32:03,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 121.625) internal successors, (973), 9 states have internal predecessors, (973), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 13:32:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 27886 states and 41641 transitions. [2023-12-25 13:32:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1301 [2023-12-25 13:32:03,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:32:03,622 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:32:03,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-25 13:32:03,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:32:03,844 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:32:03,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:32:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2257179, now seen corresponding path program 1 times [2023-12-25 13:32:03,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:32:03,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088968091] [2023-12-25 13:32:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:32:03,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:32:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:32:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:32:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:32:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-25 13:32:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-25 13:32:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-25 13:32:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-25 13:32:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2023-12-25 13:32:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2023-12-25 13:32:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 989 [2023-12-25 13:32:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2023-12-25 13:32:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2023-12-25 13:32:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1030 [2023-12-25 13:32:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1043 [2023-12-25 13:32:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:29,877 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2023-12-25 13:32:29,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:32:29,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088968091] [2023-12-25 13:32:29,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088968091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:32:29,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:32:29,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:32:29,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543580337] [2023-12-25 13:32:29,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:32:29,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:32:29,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:32:29,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:32:29,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:32:29,879 INFO L87 Difference]: Start difference. First operand 27886 states and 41641 transitions. Second operand has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:32:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:32:31,577 INFO L93 Difference]: Finished difference Result 27990 states and 41743 transitions. [2023-12-25 13:32:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:32:31,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 1300 [2023-12-25 13:32:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:32:31,594 INFO L225 Difference]: With dead ends: 27990 [2023-12-25 13:32:31,594 INFO L226 Difference]: Without dead ends: 15656 [2023-12-25 13:32:31,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:32:31,604 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 3360 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 5057 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 13:32:31,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3360 Valid, 5057 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 13:32:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15656 states. [2023-12-25 13:32:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15656 to 15558. [2023-12-25 13:32:32,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15558 states, 15016 states have (on average 1.4672349493873202) internal successors, (22032), 15016 states have internal predecessors, (22032), 540 states have call successors, (540), 1 states have call predecessors, (540), 1 states have return successors, (540), 540 states have call predecessors, (540), 540 states have call successors, (540) [2023-12-25 13:32:32,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15558 states to 15558 states and 23112 transitions. [2023-12-25 13:32:32,614 INFO L78 Accepts]: Start accepts. Automaton has 15558 states and 23112 transitions. Word has length 1300 [2023-12-25 13:32:32,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:32:32,615 INFO L495 AbstractCegarLoop]: Abstraction has 15558 states and 23112 transitions. [2023-12-25 13:32:32,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 13:32:32,615 INFO L276 IsEmpty]: Start isEmpty. Operand 15558 states and 23112 transitions. [2023-12-25 13:32:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1301 [2023-12-25 13:32:32,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:32:32,640 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:32:32,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2023-12-25 13:32:32,640 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:32:32,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:32:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash 2127125087, now seen corresponding path program 1 times [2023-12-25 13:32:32,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:32:32,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35607266] [2023-12-25 13:32:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:32:32,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:32:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:32:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:32:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:32:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-25 13:32:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-25 13:32:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-25 13:32:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-25 13:32:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2023-12-25 13:32:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2023-12-25 13:32:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 989 [2023-12-25 13:32:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2023-12-25 13:32:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2023-12-25 13:32:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1030 [2023-12-25 13:32:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1043 [2023-12-25 13:32:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 281 proven. 1 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-25 13:32:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:32:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35607266] [2023-12-25 13:32:54,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35607266] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:32:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255275600] [2023-12-25 13:32:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:32:54,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:32:54,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:32:54,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:32:54,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-25 13:32:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:32:56,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 8865 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 13:32:56,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:32:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2023-12-25 13:32:56,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:32:56,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255275600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:32:56,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:32:56,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2023-12-25 13:32:56,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266568518] [2023-12-25 13:32:56,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:32:56,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:32:56,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:32:56,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:32:56,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-12-25 13:32:56,512 INFO L87 Difference]: Start difference. First operand 15558 states and 23112 transitions. Second operand has 9 states, 8 states have (on average 123.25) internal successors, (986), 9 states have internal predecessors, (986), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 13:32:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:32:57,613 INFO L93 Difference]: Finished difference Result 21948 states and 32742 transitions. [2023-12-25 13:32:57,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:32:57,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 123.25) internal successors, (986), 9 states have internal predecessors, (986), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 1300 [2023-12-25 13:32:57,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:32:57,629 INFO L225 Difference]: With dead ends: 21948 [2023-12-25 13:32:57,629 INFO L226 Difference]: Without dead ends: 15558 [2023-12-25 13:32:57,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 1321 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-12-25 13:32:57,635 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 3538 mSDsluCounter, 9729 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3545 SdHoareTripleChecker+Valid, 11684 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:32:57,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3545 Valid, 11684 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 13:32:57,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15558 states. [2023-12-25 13:32:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15558 to 14304. [2023-12-25 13:32:58,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14304 states, 13840 states have (on average 1.464378612716763) internal successors, (20267), 13840 states have internal predecessors, (20267), 462 states have call successors, (462), 1 states have call predecessors, (462), 1 states have return successors, (462), 462 states have call predecessors, (462), 462 states have call successors, (462) [2023-12-25 13:32:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14304 states to 14304 states and 21191 transitions. [2023-12-25 13:32:58,547 INFO L78 Accepts]: Start accepts. Automaton has 14304 states and 21191 transitions. Word has length 1300 [2023-12-25 13:32:58,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:32:58,547 INFO L495 AbstractCegarLoop]: Abstraction has 14304 states and 21191 transitions. [2023-12-25 13:32:58,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 123.25) internal successors, (986), 9 states have internal predecessors, (986), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 13:32:58,548 INFO L276 IsEmpty]: Start isEmpty. Operand 14304 states and 21191 transitions. [2023-12-25 13:32:58,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1302 [2023-12-25 13:32:58,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:32:58,580 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:32:58,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-25 13:32:58,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable139 [2023-12-25 13:32:58,795 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:32:58,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:32:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash -475258221, now seen corresponding path program 1 times [2023-12-25 13:32:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:32:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379848478] [2023-12-25 13:32:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:32:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:33:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:33:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-25 13:33:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-25 13:33:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-25 13:33:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-25 13:33:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-25 13:33:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-25 13:33:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2023-12-25 13:33:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 970 [2023-12-25 13:33:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 990 [2023-12-25 13:33:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1007 [2023-12-25 13:33:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1018 [2023-12-25 13:33:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1031 [2023-12-25 13:33:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1044 [2023-12-25 13:33:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:33:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-25 13:33:31,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:33:31,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379848478] [2023-12-25 13:33:31,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379848478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:33:31,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:33:31,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 13:33:31,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825067134] [2023-12-25 13:33:31,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:33:31,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 13:33:31,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:33:31,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 13:33:31,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:33:31,241 INFO L87 Difference]: Start difference. First operand 14304 states and 21191 transitions. Second operand has 9 states, 9 states have (on average 137.11111111111111) internal successors, (1234), 9 states have internal predecessors, (1234), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:33:35,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:33:35,638 INFO L93 Difference]: Finished difference Result 49256 states and 72855 transitions. [2023-12-25 13:33:35,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 13:33:35,639 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 137.11111111111111) internal successors, (1234), 9 states have internal predecessors, (1234), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1301 [2023-12-25 13:33:35,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:33:35,677 INFO L225 Difference]: With dead ends: 49256 [2023-12-25 13:33:35,677 INFO L226 Difference]: Without dead ends: 37306 [2023-12-25 13:33:35,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-12-25 13:33:35,689 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 8937 mSDsluCounter, 6674 mSDsCounter, 0 mSdLazyCounter, 2815 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8944 SdHoareTripleChecker+Valid, 8298 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:33:35,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8944 Valid, 8298 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2815 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 13:33:35,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37306 states. [2023-12-25 13:33:37,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37306 to 25767. [2023-12-25 13:33:37,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25767 states, 24939 states have (on average 1.4593207426119732) internal successors, (36394), 24939 states have internal predecessors, (36394), 826 states have call successors, (826), 1 states have call predecessors, (826), 1 states have return successors, (826), 826 states have call predecessors, (826), 826 states have call successors, (826) [2023-12-25 13:33:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25767 states to 25767 states and 38046 transitions. [2023-12-25 13:33:37,440 INFO L78 Accepts]: Start accepts. Automaton has 25767 states and 38046 transitions. Word has length 1301 [2023-12-25 13:33:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:33:37,440 INFO L495 AbstractCegarLoop]: Abstraction has 25767 states and 38046 transitions. [2023-12-25 13:33:37,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.11111111111111) internal successors, (1234), 9 states have internal predecessors, (1234), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 13:33:37,441 INFO L276 IsEmpty]: Start isEmpty. Operand 25767 states and 38046 transitions. [2023-12-25 13:33:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1303 [2023-12-25 13:33:37,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:33:37,487 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:33:37,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2023-12-25 13:33:37,487 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:33:37,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:33:37,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1418115279, now seen corresponding path program 1 times [2023-12-25 13:33:37,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:33:37,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122495742] [2023-12-25 13:33:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:33:37,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:34:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:34:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:34:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-25 13:34:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-25 13:34:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-25 13:34:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-25 13:34:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-25 13:34:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2023-12-25 13:34:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2023-12-25 13:34:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 991 [2023-12-25 13:34:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1008 [2023-12-25 13:34:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1019 [2023-12-25 13:34:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1032 [2023-12-25 13:34:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1045 [2023-12-25 13:34:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-12-25 13:34:03,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:34:03,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122495742] [2023-12-25 13:34:03,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122495742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:34:03,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 13:34:03,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 13:34:03,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970526405] [2023-12-25 13:34:03,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:34:03,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 13:34:03,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:34:03,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 13:34:03,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 13:34:03,913 INFO L87 Difference]: Start difference. First operand 25767 states and 38046 transitions. Second operand has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 13:34:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:34:06,363 INFO L93 Difference]: Finished difference Result 42524 states and 62597 transitions. [2023-12-25 13:34:06,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 13:34:06,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 1302 [2023-12-25 13:34:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:34:06,392 INFO L225 Difference]: With dead ends: 42524 [2023-12-25 13:34:06,392 INFO L226 Difference]: Without dead ends: 26647 [2023-12-25 13:34:06,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-25 13:34:06,402 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 3326 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 13:34:06,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3326 Valid, 5195 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 13:34:06,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26647 states. [2023-12-25 13:34:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26647 to 26427. [2023-12-25 13:34:08,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26427 states, 25599 states have (on average 1.4388843314191961) internal successors, (36834), 25599 states have internal predecessors, (36834), 826 states have call successors, (826), 1 states have call predecessors, (826), 1 states have return successors, (826), 826 states have call predecessors, (826), 826 states have call successors, (826) [2023-12-25 13:34:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26427 states to 26427 states and 38486 transitions. [2023-12-25 13:34:08,160 INFO L78 Accepts]: Start accepts. Automaton has 26427 states and 38486 transitions. Word has length 1302 [2023-12-25 13:34:08,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 13:34:08,161 INFO L495 AbstractCegarLoop]: Abstraction has 26427 states and 38486 transitions. [2023-12-25 13:34:08,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 13:34:08,161 INFO L276 IsEmpty]: Start isEmpty. Operand 26427 states and 38486 transitions. [2023-12-25 13:34:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1303 [2023-12-25 13:34:08,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 13:34:08,201 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:34:08,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2023-12-25 13:34:08,202 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 13:34:08,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 13:34:08,202 INFO L85 PathProgramCache]: Analyzing trace with hash 630981233, now seen corresponding path program 1 times [2023-12-25 13:34:08,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 13:34:08,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019676333] [2023-12-25 13:34:08,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:34:08,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 13:34:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-25 13:34:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-25 13:34:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-25 13:34:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-25 13:34:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-25 13:34:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-25 13:34:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-25 13:34:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2023-12-25 13:34:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2023-12-25 13:34:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 991 [2023-12-25 13:34:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1008 [2023-12-25 13:34:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1019 [2023-12-25 13:34:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1032 [2023-12-25 13:34:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1045 [2023-12-25 13:34:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 282 proven. 1 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-25 13:34:35,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 13:34:35,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019676333] [2023-12-25 13:34:35,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019676333] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 13:34:35,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144533083] [2023-12-25 13:34:35,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 13:34:35,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:34:35,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 13:34:35,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-25 13:34:35,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-25 13:34:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 13:34:36,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 8873 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 13:34:37,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 13:34:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 523 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-25 13:34:38,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 13:34:38,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144533083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 13:34:38,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 13:34:38,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-25 13:34:38,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498629920] [2023-12-25 13:34:38,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 13:34:38,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 13:34:38,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 13:34:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 13:34:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 13:34:38,297 INFO L87 Difference]: Start difference. First operand 26427 states and 38486 transitions. Second operand has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 13:34:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 13:34:39,923 INFO L93 Difference]: Finished difference Result 32804 states and 48229 transitions. [2023-12-25 13:34:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 13:34:39,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1302 [2023-12-25 13:34:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 13:34:39,952 INFO L225 Difference]: With dead ends: 32804 [2023-12-25 13:34:39,952 INFO L226 Difference]: Without dead ends: 26427 [2023-12-25 13:34:39,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1337 GetRequests, 1328 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-25 13:34:39,962 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 1311 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 13:34:39,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 3874 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 13:34:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26427 states. Received shutdown request... [2023-12-25 13:34:40,705 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 13:34:40,707 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 13:34:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26427 to 26427. [2023-12-25 13:34:41,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26427 states, 25599 states have (on average 1.4385718192116879) internal successors, (36826), 25599 states have internal predecessors, (36826), 826 states have call successors, (826), 1 states have call predecessors, (826), 1 states have return successors, (826), 826 states have call predecessors, (826), 826 states have call successors, (826) [2023-12-25 13:34:41,686 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 13:34:41,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-25 13:34:41,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-25 13:34:41,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 13:34:41,908 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-25 13:34:41,911 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 13:34:41,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 13:34:41,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 01:34:41 BoogieIcfgContainer [2023-12-25 13:34:41,914 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 13:34:41,914 INFO L158 Benchmark]: Toolchain (without parser) took 823560.28ms. Allocated memory was 180.4MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 119.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-25 13:34:41,914 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 13:34:41,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.10ms. Allocated memory was 180.4MB in the beginning and 244.3MB in the end (delta: 64.0MB). Free memory was 119.7MB in the beginning and 187.5MB in the end (delta: -67.8MB). Peak memory consumption was 102.0MB. Max. memory is 8.0GB. [2023-12-25 13:34:41,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 487.75ms. Allocated memory is still 244.3MB. Free memory was 187.5MB in the beginning and 102.0MB in the end (delta: 85.5MB). Peak memory consumption was 134.7MB. Max. memory is 8.0GB. [2023-12-25 13:34:41,914 INFO L158 Benchmark]: Boogie Preprocessor took 790.29ms. Allocated memory was 244.3MB in the beginning and 446.7MB in the end (delta: 202.4MB). Free memory was 102.0MB in the beginning and 292.3MB in the end (delta: -190.3MB). Peak memory consumption was 57.1MB. Max. memory is 8.0GB. [2023-12-25 13:34:41,914 INFO L158 Benchmark]: RCFGBuilder took 2960.63ms. Allocated memory was 446.7MB in the beginning and 793.8MB in the end (delta: 347.1MB). Free memory was 292.3MB in the beginning and 582.3MB in the end (delta: -289.9MB). Peak memory consumption was 221.2MB. Max. memory is 8.0GB. [2023-12-25 13:34:41,914 INFO L158 Benchmark]: TraceAbstraction took 818524.94ms. Allocated memory was 793.8MB in the beginning and 2.7GB in the end (delta: 1.9GB). Free memory was 581.7MB in the beginning and 1.4GB in the end (delta: -857.7MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-25 13:34:41,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 790.10ms. Allocated memory was 180.4MB in the beginning and 244.3MB in the end (delta: 64.0MB). Free memory was 119.7MB in the beginning and 187.5MB in the end (delta: -67.8MB). Peak memory consumption was 102.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 487.75ms. Allocated memory is still 244.3MB. Free memory was 187.5MB in the beginning and 102.0MB in the end (delta: 85.5MB). Peak memory consumption was 134.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 790.29ms. Allocated memory was 244.3MB in the beginning and 446.7MB in the end (delta: 202.4MB). Free memory was 102.0MB in the beginning and 292.3MB in the end (delta: -190.3MB). Peak memory consumption was 57.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2960.63ms. Allocated memory was 446.7MB in the beginning and 793.8MB in the end (delta: 347.1MB). Free memory was 292.3MB in the beginning and 582.3MB in the end (delta: -289.9MB). Peak memory consumption was 221.2MB. Max. memory is 8.0GB. * TraceAbstraction took 818524.94ms. Allocated memory was 793.8MB in the beginning and 2.7GB in the end (delta: 1.9GB). Free memory was 581.7MB in the beginning and 1.4GB in the end (delta: -857.7MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 1259 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 818.5s, OverallIterations: 143, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.4s, AutomataDifference: 93.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 446379 SdHoareTripleChecker+Valid, 52.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 445808 mSDsluCounter, 862464 SdHoareTripleChecker+Invalid, 43.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 569861 mSDsCounter, 704 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90365 IncrementalHoareTripleChecker+Invalid, 91069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 704 mSolverCounterUnsat, 292603 mSDtfsCounter, 90365 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11750 GetRequests, 10942 SyntacticMatches, 1 SemanticMatches, 807 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27886occurred in iteration=137, InterpolantAutomatonStates: 763, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 34.2s AutomataMinimizationTime, 143 MinimizatonAttempts, 88196 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.3s SsaConstructionTime, 475.4s SatisfiabilityAnalysisTime, 199.2s InterpolantComputationTime, 131823 NumberOfCodeBlocks, 131823 NumberOfCodeBlocksAsserted, 149 NumberOfCheckSat, 131674 ConstructedInterpolants, 0 QuantifiedInterpolants, 725307 SizeOfPredicates, 22 NumberOfNonLiveVariables, 53163 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 149 InterpolantComputations, 143 PerfectInterpolantSequences, 56567/56579 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown