/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-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 01:48:03,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 01:48:03,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 01:48:03,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 01:48:03,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 01:48:03,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 01:48:03,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 01:48:03,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 01:48:03,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 01:48:03,290 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 01:48:03,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 01:48:03,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 01:48:03,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 01:48:03,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 01:48:03,291 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 01:48:03,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 01:48:03,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 01:48:03,292 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 01:48:03,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 01:48:03,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 01:48:03,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 01:48:03,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 01:48:03,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 01:48:03,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 01:48:03,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 01:48:03,294 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 01:48:03,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 01:48:03,295 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 01:48:03,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 01:48:03,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 01:48:03,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 01:48:03,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 01:48:03,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:48:03,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 01:48:03,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 01:48:03,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 01:48:03,297 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 01:48:03,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 01:48:03,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 01:48:03,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 01:48:03,298 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 01:48:03,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 01:48:03,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 01:48:03,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 01:48:03,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 01:48:03,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 01:48:03,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 01:48:03,503 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 01:48:03,504 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 01:48:03,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.i [2023-12-21 01:48:04,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 01:48:04,615 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 01:48:04,616 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.i [2023-12-21 01:48:04,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98275d044/6edbde6ffa844ccda8e41274effe1724/FLAG94387240f [2023-12-21 01:48:04,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98275d044/6edbde6ffa844ccda8e41274effe1724 [2023-12-21 01:48:04,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 01:48:04,638 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 01:48:04,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 01:48:04,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 01:48:04,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 01:48:04,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e34f653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04, skipping insertion in model container [2023-12-21 01:48:04,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 01:48:04,785 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.i[916,929] [2023-12-21 01:48:04,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:48:04,843 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 01:48:04,850 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.i[916,929] [2023-12-21 01:48:04,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:48:04,895 INFO L206 MainTranslator]: Completed translation [2023-12-21 01:48:04,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04 WrapperNode [2023-12-21 01:48:04,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 01:48:04,896 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 01:48:04,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 01:48:04,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 01:48:04,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,947 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 434 [2023-12-21 01:48:04,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 01:48:04,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 01:48:04,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 01:48:04,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 01:48:04,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,971 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,986 INFO L175 MemorySlicer]: Split 123 memory accesses to 6 slices as follows [2, 8, 8, 73, 7, 25]. 59 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 6, 1, 3]. The 16 writes are split as follows [0, 1, 3, 7, 1, 4]. [2023-12-21 01:48:04,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:04,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:05,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:05,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:05,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:05,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 01:48:05,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 01:48:05,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 01:48:05,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 01:48:05,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (1/1) ... [2023-12-21 01:48:05,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:48:05,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:48:05,051 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) [2023-12-21 01:48:05,073 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 [2023-12-21 01:48:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 01:48:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 01:48:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 01:48:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 01:48:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 01:48:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 01:48:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 01:48:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 01:48:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 01:48:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 01:48:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 01:48:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 01:48:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 01:48:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 01:48:05,084 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 01:48:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 01:48:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 01:48:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 01:48:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 01:48:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 01:48:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 01:48:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 01:48:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 01:48:05,177 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 01:48:05,178 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 01:48:05,507 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 01:48:05,535 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 01:48:05,535 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 01:48:05,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:48:05 BoogieIcfgContainer [2023-12-21 01:48:05,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 01:48:05,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 01:48:05,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 01:48:05,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 01:48:05,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:48:04" (1/3) ... [2023-12-21 01:48:05,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4786cbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:48:05, skipping insertion in model container [2023-12-21 01:48:05,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:48:04" (2/3) ... [2023-12-21 01:48:05,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4786cbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:48:05, skipping insertion in model container [2023-12-21 01:48:05,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:48:05" (3/3) ... [2023-12-21 01:48:05,552 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-66.i [2023-12-21 01:48:05,565 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 01:48:05,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 01:48:05,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 01:48:05,617 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;@2928056e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 01:48:05,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 01:48:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:48:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 01:48:05,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:05,639 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:05,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:05,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1390896871, now seen corresponding path program 1 times [2023-12-21 01:48:05,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:05,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104580119] [2023-12-21 01:48:05,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:05,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:05,939 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:05,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104580119] [2023-12-21 01:48:05,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104580119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:05,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:05,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 01:48:05,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640569162] [2023-12-21 01:48:05,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:05,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 01:48:05,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:05,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 01:48:05,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:48:05,980 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:06,026 INFO L93 Difference]: Finished difference Result 155 states and 248 transitions. [2023-12-21 01:48:06,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 01:48:06,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2023-12-21 01:48:06,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:06,034 INFO L225 Difference]: With dead ends: 155 [2023-12-21 01:48:06,034 INFO L226 Difference]: Without dead ends: 77 [2023-12-21 01:48:06,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:48:06,040 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:06,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:06,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-21 01:48:06,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-12-21 01:48:06,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 61 states have internal predecessors, (85), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:48:06,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2023-12-21 01:48:06,071 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 104 [2023-12-21 01:48:06,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:06,072 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2023-12-21 01:48:06,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2023-12-21 01:48:06,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 01:48:06,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:06,074 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:06,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 01:48:06,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:06,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2012143819, now seen corresponding path program 1 times [2023-12-21 01:48:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656226192] [2023-12-21 01:48:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:06,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:06,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656226192] [2023-12-21 01:48:06,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656226192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:06,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:06,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:48:06,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41910474] [2023-12-21 01:48:06,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:06,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:48:06,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:06,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:48:06,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:06,326 INFO L87 Difference]: Start difference. First operand 77 states and 113 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:06,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:06,371 INFO L93 Difference]: Finished difference Result 161 states and 236 transitions. [2023-12-21 01:48:06,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:48:06,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2023-12-21 01:48:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:06,378 INFO L225 Difference]: With dead ends: 161 [2023-12-21 01:48:06,378 INFO L226 Difference]: Without dead ends: 85 [2023-12-21 01:48:06,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:48:06,379 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 12 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:06,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 315 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:06,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-21 01:48:06,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2023-12-21 01:48:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:48:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2023-12-21 01:48:06,387 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 104 [2023-12-21 01:48:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:06,388 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2023-12-21 01:48:06,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2023-12-21 01:48:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 01:48:06,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:06,396 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:06,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 01:48:06,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:06,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:06,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2069402121, now seen corresponding path program 1 times [2023-12-21 01:48:06,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:06,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817155039] [2023-12-21 01:48:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:06,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:06,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:06,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817155039] [2023-12-21 01:48:06,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817155039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:06,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:06,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:48:06,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740175111] [2023-12-21 01:48:06,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:06,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:48:06,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:06,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:48:06,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:06,590 INFO L87 Difference]: Start difference. First operand 79 states and 115 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:06,632 INFO L93 Difference]: Finished difference Result 161 states and 234 transitions. [2023-12-21 01:48:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:48:06,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2023-12-21 01:48:06,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:06,635 INFO L225 Difference]: With dead ends: 161 [2023-12-21 01:48:06,635 INFO L226 Difference]: Without dead ends: 83 [2023-12-21 01:48:06,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:48:06,636 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 3 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:06,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 316 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-21 01:48:06,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2023-12-21 01:48:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:48:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2023-12-21 01:48:06,642 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 104 [2023-12-21 01:48:06,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:06,643 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2023-12-21 01:48:06,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2023-12-21 01:48:06,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 01:48:06,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:06,645 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:06,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 01:48:06,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:06,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:06,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2069461703, now seen corresponding path program 1 times [2023-12-21 01:48:06,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:06,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901711837] [2023-12-21 01:48:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:06,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:07,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:07,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901711837] [2023-12-21 01:48:07,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901711837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:07,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:07,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:48:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302610255] [2023-12-21 01:48:07,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:07,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:48:07,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:07,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:48:07,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:07,243 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:07,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:07,413 INFO L93 Difference]: Finished difference Result 241 states and 349 transitions. [2023-12-21 01:48:07,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 01:48:07,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2023-12-21 01:48:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:07,420 INFO L225 Difference]: With dead ends: 241 [2023-12-21 01:48:07,420 INFO L226 Difference]: Without dead ends: 161 [2023-12-21 01:48:07,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:07,430 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 76 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:07,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 228 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:48:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-21 01:48:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2023-12-21 01:48:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 122 states have (on average 1.3524590163934427) internal successors, (165), 122 states have internal predecessors, (165), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 01:48:07,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2023-12-21 01:48:07,446 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 104 [2023-12-21 01:48:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:07,446 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2023-12-21 01:48:07,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2023-12-21 01:48:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 01:48:07,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:07,465 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:07,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 01:48:07,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:07,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:07,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1641233836, now seen corresponding path program 1 times [2023-12-21 01:48:07,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151064261] [2023-12-21 01:48:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:07,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:09,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:09,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151064261] [2023-12-21 01:48:09,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151064261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:09,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:09,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 01:48:09,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266755215] [2023-12-21 01:48:09,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:09,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 01:48:09,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:09,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 01:48:09,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:48:09,504 INFO L87 Difference]: Start difference. First operand 153 states and 221 transitions. Second operand has 13 states, 10 states have (on average 3.8) internal successors, (38), 13 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:10,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:10,979 INFO L93 Difference]: Finished difference Result 422 states and 596 transitions. [2023-12-21 01:48:10,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 01:48:10,979 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.8) internal successors, (38), 13 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 105 [2023-12-21 01:48:10,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:10,981 INFO L225 Difference]: With dead ends: 422 [2023-12-21 01:48:10,981 INFO L226 Difference]: Without dead ends: 342 [2023-12-21 01:48:10,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2023-12-21 01:48:10,982 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 530 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:10,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 869 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 01:48:10,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-12-21 01:48:11,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 237. [2023-12-21 01:48:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 188 states have (on average 1.3297872340425532) internal successors, (250), 190 states have internal predecessors, (250), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:48:11,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 334 transitions. [2023-12-21 01:48:11,018 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 334 transitions. Word has length 105 [2023-12-21 01:48:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:11,019 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 334 transitions. [2023-12-21 01:48:11,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.8) internal successors, (38), 13 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 334 transitions. [2023-12-21 01:48:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 01:48:11,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:11,021 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:11,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 01:48:11,022 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:11,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:11,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1383068398, now seen corresponding path program 1 times [2023-12-21 01:48:11,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:11,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728007951] [2023-12-21 01:48:11,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:11,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:11,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:11,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728007951] [2023-12-21 01:48:11,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728007951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:11,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:11,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:48:11,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369370597] [2023-12-21 01:48:11,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:11,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:48:11,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:11,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:48:11,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:48:11,405 INFO L87 Difference]: Start difference. First operand 237 states and 334 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:11,716 INFO L93 Difference]: Finished difference Result 499 states and 698 transitions. [2023-12-21 01:48:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:48:11,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 105 [2023-12-21 01:48:11,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:11,720 INFO L225 Difference]: With dead ends: 499 [2023-12-21 01:48:11,720 INFO L226 Difference]: Without dead ends: 343 [2023-12-21 01:48:11,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:48:11,723 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 247 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:11,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 262 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-21 01:48:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 237. [2023-12-21 01:48:11,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 190 states have (on average 1.331578947368421) internal successors, (253), 191 states have internal predecessors, (253), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 01:48:11,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 333 transitions. [2023-12-21 01:48:11,768 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 333 transitions. Word has length 105 [2023-12-21 01:48:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:11,768 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 333 transitions. [2023-12-21 01:48:11,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 333 transitions. [2023-12-21 01:48:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 01:48:11,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:11,769 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:11,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 01:48:11,770 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:11,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1632665106, now seen corresponding path program 1 times [2023-12-21 01:48:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:11,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51562597] [2023-12-21 01:48:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:11,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:11,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:12,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:12,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51562597] [2023-12-21 01:48:12,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51562597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:12,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:12,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:48:12,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052889881] [2023-12-21 01:48:12,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:12,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:48:12,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:48:12,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:48:12,025 INFO L87 Difference]: Start difference. First operand 237 states and 333 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:12,286 INFO L93 Difference]: Finished difference Result 411 states and 570 transitions. [2023-12-21 01:48:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:48:12,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 105 [2023-12-21 01:48:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:12,288 INFO L225 Difference]: With dead ends: 411 [2023-12-21 01:48:12,288 INFO L226 Difference]: Without dead ends: 251 [2023-12-21 01:48:12,288 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 [2023-12-21 01:48:12,289 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 184 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:12,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 398 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-12-21 01:48:12,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 239. [2023-12-21 01:48:12,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 189 states have (on average 1.312169312169312) internal successors, (248), 190 states have internal predecessors, (248), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:48:12,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 332 transitions. [2023-12-21 01:48:12,314 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 332 transitions. Word has length 105 [2023-12-21 01:48:12,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:12,314 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 332 transitions. [2023-12-21 01:48:12,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:12,314 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 332 transitions. [2023-12-21 01:48:12,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:48:12,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:12,315 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:12,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 01:48:12,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:12,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:12,315 INFO L85 PathProgramCache]: Analyzing trace with hash 173160863, now seen corresponding path program 1 times [2023-12-21 01:48:12,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:12,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389195163] [2023-12-21 01:48:12,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:12,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:12,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:12,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389195163] [2023-12-21 01:48:12,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389195163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:12,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:12,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:48:12,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030902316] [2023-12-21 01:48:12,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:12,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:48:12,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:12,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:48:12,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:48:12,537 INFO L87 Difference]: Start difference. First operand 239 states and 332 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:12,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:12,604 INFO L93 Difference]: Finished difference Result 518 states and 722 transitions. [2023-12-21 01:48:12,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:48:12,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-21 01:48:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:12,606 INFO L225 Difference]: With dead ends: 518 [2023-12-21 01:48:12,606 INFO L226 Difference]: Without dead ends: 280 [2023-12-21 01:48:12,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:48:12,607 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 71 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:12,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 544 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:12,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-21 01:48:12,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 244. [2023-12-21 01:48:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 194 states have (on average 1.309278350515464) internal successors, (254), 195 states have internal predecessors, (254), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:48:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 338 transitions. [2023-12-21 01:48:12,633 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 338 transitions. Word has length 106 [2023-12-21 01:48:12,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:12,633 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 338 transitions. [2023-12-21 01:48:12,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 338 transitions. [2023-12-21 01:48:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:48:12,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:12,634 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:12,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 01:48:12,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:12,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:12,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1106702815, now seen corresponding path program 1 times [2023-12-21 01:48:12,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:12,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975633198] [2023-12-21 01:48:12,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:12,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:13,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:13,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975633198] [2023-12-21 01:48:13,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975633198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:13,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:13,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 01:48:13,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755596843] [2023-12-21 01:48:13,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:13,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 01:48:13,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:13,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 01:48:13,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:48:13,696 INFO L87 Difference]: Start difference. First operand 244 states and 338 transitions. Second operand has 11 states, 9 states have (on average 4.333333333333333) internal successors, (39), 11 states have internal predecessors, (39), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:14,464 INFO L93 Difference]: Finished difference Result 631 states and 872 transitions. [2023-12-21 01:48:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 01:48:14,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.333333333333333) internal successors, (39), 11 states have internal predecessors, (39), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 106 [2023-12-21 01:48:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:14,466 INFO L225 Difference]: With dead ends: 631 [2023-12-21 01:48:14,466 INFO L226 Difference]: Without dead ends: 388 [2023-12-21 01:48:14,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-12-21 01:48:14,467 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 527 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:14,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 578 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 01:48:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-21 01:48:14,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 314. [2023-12-21 01:48:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 250 states have (on average 1.304) internal successors, (326), 252 states have internal predecessors, (326), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-21 01:48:14,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 434 transitions. [2023-12-21 01:48:14,509 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 434 transitions. Word has length 106 [2023-12-21 01:48:14,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:14,509 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 434 transitions. [2023-12-21 01:48:14,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.333333333333333) internal successors, (39), 11 states have internal predecessors, (39), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:14,510 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 434 transitions. [2023-12-21 01:48:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:48:14,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:14,511 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:14,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 01:48:14,511 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:14,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash -848537377, now seen corresponding path program 1 times [2023-12-21 01:48:14,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:14,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155208510] [2023-12-21 01:48:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:14,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:14,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:14,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155208510] [2023-12-21 01:48:14,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155208510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:14,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:14,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:48:14,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420449104] [2023-12-21 01:48:14,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:14,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:48:14,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:14,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:48:14,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:14,827 INFO L87 Difference]: Start difference. First operand 314 states and 434 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:14,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:14,958 INFO L93 Difference]: Finished difference Result 633 states and 875 transitions. [2023-12-21 01:48:14,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 01:48:14,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 01:48:14,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:14,960 INFO L225 Difference]: With dead ends: 633 [2023-12-21 01:48:14,960 INFO L226 Difference]: Without dead ends: 320 [2023-12-21 01:48:14,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:48:14,961 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 108 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 249 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 [2023-12-21 01:48:14,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 249 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:48:14,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-12-21 01:48:14,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 312. [2023-12-21 01:48:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 248 states have (on average 1.2943548387096775) internal successors, (321), 250 states have internal predecessors, (321), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-21 01:48:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 429 transitions. [2023-12-21 01:48:14,999 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 429 transitions. Word has length 106 [2023-12-21 01:48:14,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:14,999 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 429 transitions. [2023-12-21 01:48:14,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:14,999 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 429 transitions. [2023-12-21 01:48:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:48:15,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:15,001 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:15,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 01:48:15,002 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:15,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:15,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1194119775, now seen corresponding path program 1 times [2023-12-21 01:48:15,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:15,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886882405] [2023-12-21 01:48:15,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:15,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:15,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:15,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886882405] [2023-12-21 01:48:15,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886882405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:15,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:15,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:48:15,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850969640] [2023-12-21 01:48:15,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:15,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:48:15,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:15,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:48:15,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:15,262 INFO L87 Difference]: Start difference. First operand 312 states and 429 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:15,413 INFO L93 Difference]: Finished difference Result 595 states and 817 transitions. [2023-12-21 01:48:15,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 01:48:15,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 01:48:15,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:15,416 INFO L225 Difference]: With dead ends: 595 [2023-12-21 01:48:15,416 INFO L226 Difference]: Without dead ends: 284 [2023-12-21 01:48:15,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:15,417 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 74 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:15,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 224 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:48:15,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-12-21 01:48:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 276. [2023-12-21 01:48:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 212 states have (on average 1.2688679245283019) internal successors, (269), 214 states have internal predecessors, (269), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-21 01:48:15,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 377 transitions. [2023-12-21 01:48:15,452 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 377 transitions. Word has length 106 [2023-12-21 01:48:15,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:15,453 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 377 transitions. [2023-12-21 01:48:15,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:15,453 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 377 transitions. [2023-12-21 01:48:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:15,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:15,454 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:15,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 01:48:15,454 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:15,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:15,454 INFO L85 PathProgramCache]: Analyzing trace with hash -242824702, now seen corresponding path program 1 times [2023-12-21 01:48:15,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:15,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107309250] [2023-12-21 01:48:15,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:15,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:15,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:15,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107309250] [2023-12-21 01:48:15,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107309250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:15,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:15,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:48:15,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336144316] [2023-12-21 01:48:15,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:15,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:48:15,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:15,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:48:15,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:48:15,531 INFO L87 Difference]: Start difference. First operand 276 states and 377 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:15,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:15,570 INFO L93 Difference]: Finished difference Result 577 states and 789 transitions. [2023-12-21 01:48:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:48:15,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 01:48:15,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:15,572 INFO L225 Difference]: With dead ends: 577 [2023-12-21 01:48:15,572 INFO L226 Difference]: Without dead ends: 330 [2023-12-21 01:48:15,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:48:15,573 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 30 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:15,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 218 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-21 01:48:15,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 279. [2023-12-21 01:48:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 217 states have internal predecessors, (272), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-21 01:48:15,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 380 transitions. [2023-12-21 01:48:15,605 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 380 transitions. Word has length 108 [2023-12-21 01:48:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:15,607 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 380 transitions. [2023-12-21 01:48:15,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 380 transitions. [2023-12-21 01:48:15,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:15,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:15,608 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:15,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 01:48:15,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:15,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash 15340736, now seen corresponding path program 1 times [2023-12-21 01:48:15,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:15,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073159173] [2023-12-21 01:48:15,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:15,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:15,716 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:15,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:15,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073159173] [2023-12-21 01:48:15,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073159173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:15,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:15,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:48:15,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599761163] [2023-12-21 01:48:15,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:15,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:48:15,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:15,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:48:15,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:48:15,718 INFO L87 Difference]: Start difference. First operand 279 states and 380 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:15,779 INFO L93 Difference]: Finished difference Result 574 states and 783 transitions. [2023-12-21 01:48:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:48:15,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 01:48:15,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:15,781 INFO L225 Difference]: With dead ends: 574 [2023-12-21 01:48:15,781 INFO L226 Difference]: Without dead ends: 324 [2023-12-21 01:48:15,782 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 [2023-12-21 01:48:15,782 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 63 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:15,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 401 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:15,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-12-21 01:48:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 288. [2023-12-21 01:48:15,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 224 states have (on average 1.2544642857142858) internal successors, (281), 226 states have internal predecessors, (281), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-21 01:48:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 389 transitions. [2023-12-21 01:48:15,821 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 389 transitions. Word has length 108 [2023-12-21 01:48:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:15,821 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 389 transitions. [2023-12-21 01:48:15,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 389 transitions. [2023-12-21 01:48:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:15,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:15,822 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:15,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 01:48:15,822 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:15,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash -922931083, now seen corresponding path program 1 times [2023-12-21 01:48:15,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:15,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130379170] [2023-12-21 01:48:15,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:15,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:17,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:17,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130379170] [2023-12-21 01:48:17,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130379170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:17,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:17,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 01:48:17,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734445863] [2023-12-21 01:48:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:17,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 01:48:17,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:17,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 01:48:17,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:48:17,288 INFO L87 Difference]: Start difference. First operand 288 states and 389 transitions. Second operand has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 15 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:20,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:20,508 INFO L93 Difference]: Finished difference Result 822 states and 1117 transitions. [2023-12-21 01:48:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 01:48:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 15 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2023-12-21 01:48:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:20,512 INFO L225 Difference]: With dead ends: 822 [2023-12-21 01:48:20,512 INFO L226 Difference]: Without dead ends: 647 [2023-12-21 01:48:20,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=1234, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 01:48:20,513 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 672 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:20,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1234 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 01:48:20,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-12-21 01:48:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 438. [2023-12-21 01:48:20,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 347 states have (on average 1.2737752161383284) internal successors, (442), 351 states have internal predecessors, (442), 76 states have call successors, (76), 14 states have call predecessors, (76), 14 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-21 01:48:20,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 594 transitions. [2023-12-21 01:48:20,557 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 594 transitions. Word has length 108 [2023-12-21 01:48:20,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:20,557 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 594 transitions. [2023-12-21 01:48:20,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 15 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 594 transitions. [2023-12-21 01:48:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:20,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:20,558 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:20,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 01:48:20,559 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:20,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:20,559 INFO L85 PathProgramCache]: Analyzing trace with hash -664765645, now seen corresponding path program 1 times [2023-12-21 01:48:20,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:20,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540395520] [2023-12-21 01:48:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:20,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:20,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:20,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540395520] [2023-12-21 01:48:20,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540395520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:20,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:20,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:20,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350870683] [2023-12-21 01:48:20,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:20,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:20,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:20,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:20,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:20,981 INFO L87 Difference]: Start difference. First operand 438 states and 594 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:21,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:21,420 INFO L93 Difference]: Finished difference Result 853 states and 1161 transitions. [2023-12-21 01:48:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:48:21,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2023-12-21 01:48:21,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:21,422 INFO L225 Difference]: With dead ends: 853 [2023-12-21 01:48:21,422 INFO L226 Difference]: Without dead ends: 550 [2023-12-21 01:48:21,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:21,423 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 308 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:21,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 420 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-21 01:48:21,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 445. [2023-12-21 01:48:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 354 states have (on average 1.271186440677966) internal successors, (450), 358 states have internal predecessors, (450), 76 states have call successors, (76), 14 states have call predecessors, (76), 14 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-21 01:48:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 602 transitions. [2023-12-21 01:48:21,472 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 602 transitions. Word has length 108 [2023-12-21 01:48:21,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:21,473 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 602 transitions. [2023-12-21 01:48:21,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:21,473 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 602 transitions. [2023-12-21 01:48:21,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:21,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:21,474 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:21,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 01:48:21,474 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:21,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:21,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1943999437, now seen corresponding path program 1 times [2023-12-21 01:48:21,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:21,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287981684] [2023-12-21 01:48:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:21,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:21,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:21,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287981684] [2023-12-21 01:48:21,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287981684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:21,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:21,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:21,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506593982] [2023-12-21 01:48:21,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:21,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:21,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:21,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:21,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:21,768 INFO L87 Difference]: Start difference. First operand 445 states and 602 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:22,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:22,423 INFO L93 Difference]: Finished difference Result 834 states and 1133 transitions. [2023-12-21 01:48:22,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:48:22,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 01:48:22,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:22,427 INFO L225 Difference]: With dead ends: 834 [2023-12-21 01:48:22,427 INFO L226 Difference]: Without dead ends: 650 [2023-12-21 01:48:22,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:48:22,428 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 356 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:22,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 639 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 01:48:22,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-21 01:48:22,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 465. [2023-12-21 01:48:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 371 states have (on average 1.274932614555256) internal successors, (473), 375 states have internal predecessors, (473), 78 states have call successors, (78), 15 states have call predecessors, (78), 15 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-21 01:48:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 629 transitions. [2023-12-21 01:48:22,509 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 629 transitions. Word has length 108 [2023-12-21 01:48:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:22,509 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 629 transitions. [2023-12-21 01:48:22,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 629 transitions. [2023-12-21 01:48:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:22,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:22,510 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:22,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 01:48:22,511 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:22,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:22,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1685833999, now seen corresponding path program 1 times [2023-12-21 01:48:22,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:22,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592196574] [2023-12-21 01:48:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:22,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:22,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592196574] [2023-12-21 01:48:22,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592196574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:22,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:22,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:22,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122941502] [2023-12-21 01:48:22,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:22,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:22,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:22,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:22,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:22,859 INFO L87 Difference]: Start difference. First operand 465 states and 629 transitions. Second operand has 8 states, 6 states have (on average 6.833333333333333) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:23,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:23,100 INFO L93 Difference]: Finished difference Result 758 states and 1030 transitions. [2023-12-21 01:48:23,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 01:48:23,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.833333333333333) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 108 [2023-12-21 01:48:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:23,103 INFO L225 Difference]: With dead ends: 758 [2023-12-21 01:48:23,103 INFO L226 Difference]: Without dead ends: 562 [2023-12-21 01:48:23,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:48:23,106 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 149 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:23,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1071 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-12-21 01:48:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 467. [2023-12-21 01:48:23,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 373 states have (on average 1.2734584450402144) internal successors, (475), 377 states have internal predecessors, (475), 78 states have call successors, (78), 15 states have call predecessors, (78), 15 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-21 01:48:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 631 transitions. [2023-12-21 01:48:23,153 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 631 transitions. Word has length 108 [2023-12-21 01:48:23,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:23,153 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 631 transitions. [2023-12-21 01:48:23,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.833333333333333) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:23,153 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 631 transitions. [2023-12-21 01:48:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:23,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:23,154 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:23,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 01:48:23,154 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:23,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:23,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1740579533, now seen corresponding path program 1 times [2023-12-21 01:48:23,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:23,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343924388] [2023-12-21 01:48:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:23,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:24,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:24,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343924388] [2023-12-21 01:48:24,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343924388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:24,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:24,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 01:48:24,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222863670] [2023-12-21 01:48:24,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:24,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 01:48:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 01:48:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:24,135 INFO L87 Difference]: Start difference. First operand 467 states and 631 transitions. Second operand has 14 states, 11 states have (on average 3.727272727272727) internal successors, (41), 14 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:27,316 INFO L93 Difference]: Finished difference Result 967 states and 1310 transitions. [2023-12-21 01:48:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 01:48:27,317 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 3.727272727272727) internal successors, (41), 14 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2023-12-21 01:48:27,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:27,328 INFO L225 Difference]: With dead ends: 967 [2023-12-21 01:48:27,328 INFO L226 Difference]: Without dead ends: 707 [2023-12-21 01:48:27,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=197, Invalid=859, Unknown=0, NotChecked=0, Total=1056 [2023-12-21 01:48:27,329 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 519 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:27,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1169 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 01:48:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-12-21 01:48:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 475. [2023-12-21 01:48:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 381 states have (on average 1.2755905511811023) internal successors, (486), 385 states have internal predecessors, (486), 78 states have call successors, (78), 15 states have call predecessors, (78), 15 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-21 01:48:27,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 642 transitions. [2023-12-21 01:48:27,381 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 642 transitions. Word has length 108 [2023-12-21 01:48:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:27,382 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 642 transitions. [2023-12-21 01:48:27,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 3.727272727272727) internal successors, (41), 14 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 642 transitions. [2023-12-21 01:48:27,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:48:27,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:27,383 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:27,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 01:48:27,383 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:27,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:27,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1533319409, now seen corresponding path program 1 times [2023-12-21 01:48:27,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:27,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150754511] [2023-12-21 01:48:27,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:27,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:27,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:27,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150754511] [2023-12-21 01:48:27,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150754511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:27,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:27,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:48:27,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723199165] [2023-12-21 01:48:27,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:27,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:48:27,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:27,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:48:27,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:48:27,604 INFO L87 Difference]: Start difference. First operand 475 states and 642 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:27,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:27,981 INFO L93 Difference]: Finished difference Result 810 states and 1096 transitions. [2023-12-21 01:48:27,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:48:27,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 01:48:27,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:27,989 INFO L225 Difference]: With dead ends: 810 [2023-12-21 01:48:27,989 INFO L226 Difference]: Without dead ends: 550 [2023-12-21 01:48:27,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:48:27,990 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 202 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:27,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 425 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:27,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-21 01:48:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 535. [2023-12-21 01:48:28,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 424 states have (on average 1.2617924528301887) internal successors, (535), 429 states have internal predecessors, (535), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 01:48:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 719 transitions. [2023-12-21 01:48:28,054 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 719 transitions. Word has length 108 [2023-12-21 01:48:28,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:28,054 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 719 transitions. [2023-12-21 01:48:28,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:28,055 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 719 transitions. [2023-12-21 01:48:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 01:48:28,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:28,055 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:28,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 01:48:28,056 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:28,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2138828573, now seen corresponding path program 1 times [2023-12-21 01:48:28,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:28,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538049834] [2023-12-21 01:48:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:28,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:28,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:28,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538049834] [2023-12-21 01:48:28,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538049834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:28,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:28,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:28,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462691522] [2023-12-21 01:48:28,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:28,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:28,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:28,315 INFO L87 Difference]: Start difference. First operand 535 states and 719 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:28,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:28,584 INFO L93 Difference]: Finished difference Result 883 states and 1193 transitions. [2023-12-21 01:48:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 01:48:28,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-12-21 01:48:28,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:28,587 INFO L225 Difference]: With dead ends: 883 [2023-12-21 01:48:28,587 INFO L226 Difference]: Without dead ends: 625 [2023-12-21 01:48:28,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2023-12-21 01:48:28,588 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 206 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:28,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 596 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:48:28,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-12-21 01:48:28,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 536. [2023-12-21 01:48:28,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 425 states have (on average 1.2611764705882353) internal successors, (536), 430 states have internal predecessors, (536), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 01:48:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 720 transitions. [2023-12-21 01:48:28,651 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 720 transitions. Word has length 110 [2023-12-21 01:48:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:28,651 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 720 transitions. [2023-12-21 01:48:28,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:28,651 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 720 transitions. [2023-12-21 01:48:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 01:48:28,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:28,652 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:28,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 01:48:28,652 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:28,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash 454207881, now seen corresponding path program 1 times [2023-12-21 01:48:28,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:28,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318380813] [2023-12-21 01:48:28,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:28,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:29,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318380813] [2023-12-21 01:48:29,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318380813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:29,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:29,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:29,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987412841] [2023-12-21 01:48:29,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:29,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:29,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:29,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:29,083 INFO L87 Difference]: Start difference. First operand 536 states and 720 transitions. Second operand has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:29,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:29,368 INFO L93 Difference]: Finished difference Result 1027 states and 1388 transitions. [2023-12-21 01:48:29,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:48:29,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2023-12-21 01:48:29,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:29,372 INFO L225 Difference]: With dead ends: 1027 [2023-12-21 01:48:29,372 INFO L226 Difference]: Without dead ends: 674 [2023-12-21 01:48:29,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:48:29,373 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 177 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:29,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 520 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-12-21 01:48:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 539. [2023-12-21 01:48:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 428 states have (on average 1.264018691588785) internal successors, (541), 433 states have internal predecessors, (541), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 01:48:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 725 transitions. [2023-12-21 01:48:29,437 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 725 transitions. Word has length 110 [2023-12-21 01:48:29,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:29,438 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 725 transitions. [2023-12-21 01:48:29,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 725 transitions. [2023-12-21 01:48:29,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 01:48:29,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:29,439 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:29,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 01:48:29,439 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:29,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2111781837, now seen corresponding path program 1 times [2023-12-21 01:48:29,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:29,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586871378] [2023-12-21 01:48:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:29,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:33,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:33,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586871378] [2023-12-21 01:48:33,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586871378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:33,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:33,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 01:48:33,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85312511] [2023-12-21 01:48:33,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:33,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 01:48:33,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:33,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 01:48:33,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:33,634 INFO L87 Difference]: Start difference. First operand 539 states and 725 transitions. Second operand has 14 states, 10 states have (on average 4.3) internal successors, (43), 14 states have internal predecessors, (43), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-21 01:48:35,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:35,099 INFO L93 Difference]: Finished difference Result 999 states and 1334 transitions. [2023-12-21 01:48:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 01:48:35,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.3) internal successors, (43), 14 states have internal predecessors, (43), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 110 [2023-12-21 01:48:35,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:35,102 INFO L225 Difference]: With dead ends: 999 [2023-12-21 01:48:35,102 INFO L226 Difference]: Without dead ends: 683 [2023-12-21 01:48:35,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2023-12-21 01:48:35,104 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 572 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:35,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1051 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 01:48:35,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-12-21 01:48:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 490. [2023-12-21 01:48:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 390 states have (on average 1.2615384615384615) internal successors, (492), 394 states have internal predecessors, (492), 82 states have call successors, (82), 17 states have call predecessors, (82), 17 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-21 01:48:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 656 transitions. [2023-12-21 01:48:35,197 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 656 transitions. Word has length 110 [2023-12-21 01:48:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:35,198 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 656 transitions. [2023-12-21 01:48:35,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.3) internal successors, (43), 14 states have internal predecessors, (43), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-21 01:48:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 656 transitions. [2023-12-21 01:48:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 01:48:35,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:35,199 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:35,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 01:48:35,199 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:35,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:35,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1114110832, now seen corresponding path program 1 times [2023-12-21 01:48:35,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:35,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774465484] [2023-12-21 01:48:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:35,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:35,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:35,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774465484] [2023-12-21 01:48:35,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774465484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:35,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:35,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:35,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249617658] [2023-12-21 01:48:35,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:35,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:35,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:35,504 INFO L87 Difference]: Start difference. First operand 490 states and 656 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:36,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:36,000 INFO L93 Difference]: Finished difference Result 1059 states and 1423 transitions. [2023-12-21 01:48:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 01:48:36,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2023-12-21 01:48:36,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:36,004 INFO L225 Difference]: With dead ends: 1059 [2023-12-21 01:48:36,004 INFO L226 Difference]: Without dead ends: 610 [2023-12-21 01:48:36,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:36,006 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 273 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:36,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 601 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:36,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-12-21 01:48:36,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 489. [2023-12-21 01:48:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 389 states have (on average 1.2596401028277635) internal successors, (490), 393 states have internal predecessors, (490), 82 states have call successors, (82), 17 states have call predecessors, (82), 17 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-21 01:48:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 654 transitions. [2023-12-21 01:48:36,085 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 654 transitions. Word has length 111 [2023-12-21 01:48:36,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:36,085 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 654 transitions. [2023-12-21 01:48:36,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 654 transitions. [2023-12-21 01:48:36,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 01:48:36,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:36,087 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:36,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 01:48:36,087 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:36,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:36,087 INFO L85 PathProgramCache]: Analyzing trace with hash 102993582, now seen corresponding path program 1 times [2023-12-21 01:48:36,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:36,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92403816] [2023-12-21 01:48:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:36,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:36,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92403816] [2023-12-21 01:48:36,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92403816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:36,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:36,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:48:36,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986773229] [2023-12-21 01:48:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:36,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:48:36,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:36,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:48:36,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:48:36,288 INFO L87 Difference]: Start difference. First operand 489 states and 654 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:36,389 INFO L93 Difference]: Finished difference Result 1007 states and 1352 transitions. [2023-12-21 01:48:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:48:36,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2023-12-21 01:48:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:36,391 INFO L225 Difference]: With dead ends: 1007 [2023-12-21 01:48:36,391 INFO L226 Difference]: Without dead ends: 559 [2023-12-21 01:48:36,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:48:36,393 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 159 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:36,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 477 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:36,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-21 01:48:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 477. [2023-12-21 01:48:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.246684350132626) internal successors, (470), 381 states have internal predecessors, (470), 82 states have call successors, (82), 17 states have call predecessors, (82), 17 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-21 01:48:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 634 transitions. [2023-12-21 01:48:36,462 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 634 transitions. Word has length 111 [2023-12-21 01:48:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:36,462 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 634 transitions. [2023-12-21 01:48:36,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 634 transitions. [2023-12-21 01:48:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 01:48:36,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:36,463 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:36,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 01:48:36,463 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:36,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash -570509860, now seen corresponding path program 1 times [2023-12-21 01:48:36,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:36,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633607161] [2023-12-21 01:48:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:36,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:36,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633607161] [2023-12-21 01:48:36,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633607161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:36,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:36,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:48:36,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928533171] [2023-12-21 01:48:36,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:36,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:48:36,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:36,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:48:36,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:48:36,696 INFO L87 Difference]: Start difference. First operand 477 states and 634 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:36,837 INFO L93 Difference]: Finished difference Result 915 states and 1217 transitions. [2023-12-21 01:48:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 01:48:36,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-21 01:48:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:36,840 INFO L225 Difference]: With dead ends: 915 [2023-12-21 01:48:36,840 INFO L226 Difference]: Without dead ends: 479 [2023-12-21 01:48:36,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:48:36,841 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 59 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 258 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 [2023-12-21 01:48:36,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 258 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:48:36,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-12-21 01:48:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 477. [2023-12-21 01:48:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 377 states have (on average 1.2440318302387268) internal successors, (469), 381 states have internal predecessors, (469), 82 states have call successors, (82), 17 states have call predecessors, (82), 17 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-21 01:48:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 633 transitions. [2023-12-21 01:48:36,920 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 633 transitions. Word has length 111 [2023-12-21 01:48:36,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:36,921 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 633 transitions. [2023-12-21 01:48:36,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 633 transitions. [2023-12-21 01:48:36,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 01:48:36,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:36,921 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:36,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 01:48:36,922 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:36,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:36,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1016553638, now seen corresponding path program 1 times [2023-12-21 01:48:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:36,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159980187] [2023-12-21 01:48:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:36,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:37,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159980187] [2023-12-21 01:48:37,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159980187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:37,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:37,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 01:48:37,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582416239] [2023-12-21 01:48:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:37,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 01:48:37,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:37,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 01:48:37,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 01:48:37,923 INFO L87 Difference]: Start difference. First operand 477 states and 633 transitions. Second operand has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:38,639 INFO L93 Difference]: Finished difference Result 576 states and 760 transitions. [2023-12-21 01:48:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 01:48:38,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-12-21 01:48:38,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:38,642 INFO L225 Difference]: With dead ends: 576 [2023-12-21 01:48:38,642 INFO L226 Difference]: Without dead ends: 574 [2023-12-21 01:48:38,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2023-12-21 01:48:38,644 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 211 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:38,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 758 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 01:48:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-21 01:48:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 487. [2023-12-21 01:48:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 387 states have (on average 1.2377260981912144) internal successors, (479), 391 states have internal predecessors, (479), 82 states have call successors, (82), 17 states have call predecessors, (82), 17 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-21 01:48:38,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 643 transitions. [2023-12-21 01:48:38,717 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 643 transitions. Word has length 112 [2023-12-21 01:48:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:38,717 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 643 transitions. [2023-12-21 01:48:38,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 643 transitions. [2023-12-21 01:48:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 01:48:38,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:38,721 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:38,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 01:48:38,722 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:38,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:38,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1016613220, now seen corresponding path program 1 times [2023-12-21 01:48:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:38,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539140877] [2023-12-21 01:48:38,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:38,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:39,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:39,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539140877] [2023-12-21 01:48:39,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539140877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:39,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:39,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 01:48:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708837091] [2023-12-21 01:48:39,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:39,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 01:48:39,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:39,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 01:48:39,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:48:39,227 INFO L87 Difference]: Start difference. First operand 487 states and 643 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:39,678 INFO L93 Difference]: Finished difference Result 1203 states and 1577 transitions. [2023-12-21 01:48:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:48:39,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2023-12-21 01:48:39,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:39,681 INFO L225 Difference]: With dead ends: 1203 [2023-12-21 01:48:39,681 INFO L226 Difference]: Without dead ends: 757 [2023-12-21 01:48:39,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2023-12-21 01:48:39,683 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 305 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:39,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 503 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:39,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-12-21 01:48:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 507. [2023-12-21 01:48:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 402 states have (on average 1.2164179104477613) internal successors, (489), 406 states have internal predecessors, (489), 82 states have call successors, (82), 22 states have call predecessors, (82), 22 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-21 01:48:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 653 transitions. [2023-12-21 01:48:39,761 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 653 transitions. Word has length 112 [2023-12-21 01:48:39,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:39,762 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 653 transitions. [2023-12-21 01:48:39,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 653 transitions. [2023-12-21 01:48:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 01:48:39,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:39,763 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:39,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 01:48:39,763 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:39,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:39,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1073871522, now seen corresponding path program 1 times [2023-12-21 01:48:39,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:39,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160234719] [2023-12-21 01:48:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:39,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:40,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:40,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160234719] [2023-12-21 01:48:40,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160234719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:40,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:40,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984888747] [2023-12-21 01:48:40,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:40,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:40,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:40,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:40,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:40,100 INFO L87 Difference]: Start difference. First operand 507 states and 653 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:40,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:40,353 INFO L93 Difference]: Finished difference Result 1054 states and 1352 transitions. [2023-12-21 01:48:40,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:48:40,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-12-21 01:48:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:40,356 INFO L225 Difference]: With dead ends: 1054 [2023-12-21 01:48:40,356 INFO L226 Difference]: Without dead ends: 766 [2023-12-21 01:48:40,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:48:40,357 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 94 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:40,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 869 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:48:40,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-12-21 01:48:40,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 699. [2023-12-21 01:48:40,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 563 states have (on average 1.2131438721136767) internal successors, (683), 569 states have internal predecessors, (683), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:40,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 895 transitions. [2023-12-21 01:48:40,452 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 895 transitions. Word has length 112 [2023-12-21 01:48:40,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:40,452 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 895 transitions. [2023-12-21 01:48:40,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 895 transitions. [2023-12-21 01:48:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 01:48:40,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:40,453 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:40,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 01:48:40,453 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:40,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:40,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1845075430, now seen corresponding path program 1 times [2023-12-21 01:48:40,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:40,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121716762] [2023-12-21 01:48:40,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:40,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:40,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:40,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121716762] [2023-12-21 01:48:40,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121716762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:40,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:40,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 01:48:40,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201057230] [2023-12-21 01:48:40,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:40,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 01:48:40,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:40,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 01:48:40,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:48:40,830 INFO L87 Difference]: Start difference. First operand 699 states and 895 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:41,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:41,312 INFO L93 Difference]: Finished difference Result 1518 states and 1942 transitions. [2023-12-21 01:48:41,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:48:41,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2023-12-21 01:48:41,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:41,315 INFO L225 Difference]: With dead ends: 1518 [2023-12-21 01:48:41,315 INFO L226 Difference]: Without dead ends: 971 [2023-12-21 01:48:41,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:48:41,317 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 213 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:41,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 539 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-12-21 01:48:41,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 741. [2023-12-21 01:48:41,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 605 states have (on average 1.2148760330578512) internal successors, (735), 611 states have internal predecessors, (735), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 947 transitions. [2023-12-21 01:48:41,416 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 947 transitions. Word has length 113 [2023-12-21 01:48:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:41,416 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 947 transitions. [2023-12-21 01:48:41,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 947 transitions. [2023-12-21 01:48:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 01:48:41,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:41,417 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:41,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 01:48:41,417 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:41,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:41,417 INFO L85 PathProgramCache]: Analyzing trace with hash 256727528, now seen corresponding path program 1 times [2023-12-21 01:48:41,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:41,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685333651] [2023-12-21 01:48:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:41,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:41,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:41,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685333651] [2023-12-21 01:48:41,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685333651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:41,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:41,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:41,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311939798] [2023-12-21 01:48:41,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:41,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:41,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:41,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:41,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:41,768 INFO L87 Difference]: Start difference. First operand 741 states and 947 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:42,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:42,217 INFO L93 Difference]: Finished difference Result 1351 states and 1726 transitions. [2023-12-21 01:48:42,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 01:48:42,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2023-12-21 01:48:42,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:42,220 INFO L225 Difference]: With dead ends: 1351 [2023-12-21 01:48:42,220 INFO L226 Difference]: Without dead ends: 871 [2023-12-21 01:48:42,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:48:42,221 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 324 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:42,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 492 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-12-21 01:48:42,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 741. [2023-12-21 01:48:42,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 605 states have (on average 1.2115702479338843) internal successors, (733), 611 states have internal predecessors, (733), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:42,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 945 transitions. [2023-12-21 01:48:42,321 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 945 transitions. Word has length 113 [2023-12-21 01:48:42,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:42,321 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 945 transitions. [2023-12-21 01:48:42,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:42,321 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 945 transitions. [2023-12-21 01:48:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 01:48:42,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:42,322 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:42,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 01:48:42,322 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:42,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2079314532, now seen corresponding path program 1 times [2023-12-21 01:48:42,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:42,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348318145] [2023-12-21 01:48:42,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:42,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:42,617 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:42,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:42,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348318145] [2023-12-21 01:48:42,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348318145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:42,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:42,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:42,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288712493] [2023-12-21 01:48:42,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:42,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:42,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:42,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:42,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:42,619 INFO L87 Difference]: Start difference. First operand 741 states and 945 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:42,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:42,999 INFO L93 Difference]: Finished difference Result 1412 states and 1799 transitions. [2023-12-21 01:48:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:48:43,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2023-12-21 01:48:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:43,002 INFO L225 Difference]: With dead ends: 1412 [2023-12-21 01:48:43,002 INFO L226 Difference]: Without dead ends: 862 [2023-12-21 01:48:43,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:43,004 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 271 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:43,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 475 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-12-21 01:48:43,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 733. [2023-12-21 01:48:43,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 597 states have (on average 1.2077051926298157) internal successors, (721), 603 states have internal predecessors, (721), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:43,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 933 transitions. [2023-12-21 01:48:43,103 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 933 transitions. Word has length 113 [2023-12-21 01:48:43,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:43,103 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 933 transitions. [2023-12-21 01:48:43,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 933 transitions. [2023-12-21 01:48:43,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 01:48:43,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:43,104 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:43,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 01:48:43,105 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:43,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:43,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1204535514, now seen corresponding path program 1 times [2023-12-21 01:48:43,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178866131] [2023-12-21 01:48:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:43,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:43,431 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:43,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:43,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178866131] [2023-12-21 01:48:43,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178866131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:43,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:43,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:43,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021083175] [2023-12-21 01:48:43,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:43,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:43,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:43,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:43,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:43,433 INFO L87 Difference]: Start difference. First operand 733 states and 933 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:43,925 INFO L93 Difference]: Finished difference Result 1405 states and 1788 transitions. [2023-12-21 01:48:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:48:43,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2023-12-21 01:48:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:43,928 INFO L225 Difference]: With dead ends: 1405 [2023-12-21 01:48:43,928 INFO L226 Difference]: Without dead ends: 863 [2023-12-21 01:48:43,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:43,930 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 221 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:43,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 504 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:43,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-12-21 01:48:44,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 737. [2023-12-21 01:48:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 601 states have (on average 1.2029950083194676) internal successors, (723), 607 states have internal predecessors, (723), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:44,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 935 transitions. [2023-12-21 01:48:44,047 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 935 transitions. Word has length 113 [2023-12-21 01:48:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:44,047 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 935 transitions. [2023-12-21 01:48:44,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:44,048 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 935 transitions. [2023-12-21 01:48:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:48:44,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:44,049 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:44,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 01:48:44,049 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:44,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:44,049 INFO L85 PathProgramCache]: Analyzing trace with hash 844055378, now seen corresponding path program 1 times [2023-12-21 01:48:44,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:44,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435604242] [2023-12-21 01:48:44,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:44,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:44,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:44,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435604242] [2023-12-21 01:48:44,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435604242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:44,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:44,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:48:44,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742859719] [2023-12-21 01:48:44,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:44,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:48:44,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:48:44,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:48:44,249 INFO L87 Difference]: Start difference. First operand 737 states and 935 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:44,385 INFO L93 Difference]: Finished difference Result 1671 states and 2106 transitions. [2023-12-21 01:48:44,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:48:44,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-12-21 01:48:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:44,389 INFO L225 Difference]: With dead ends: 1671 [2023-12-21 01:48:44,390 INFO L226 Difference]: Without dead ends: 975 [2023-12-21 01:48:44,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:48:44,391 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 74 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:44,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 599 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:44,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2023-12-21 01:48:44,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 789. [2023-12-21 01:48:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 653 states have (on average 1.222052067381317) internal successors, (798), 659 states have internal predecessors, (798), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1010 transitions. [2023-12-21 01:48:44,516 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1010 transitions. Word has length 114 [2023-12-21 01:48:44,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:44,516 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1010 transitions. [2023-12-21 01:48:44,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1010 transitions. [2023-12-21 01:48:44,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:48:44,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:44,517 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:44,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 01:48:44,517 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:44,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1545119956, now seen corresponding path program 1 times [2023-12-21 01:48:44,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603636109] [2023-12-21 01:48:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:44,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:44,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603636109] [2023-12-21 01:48:44,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603636109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:44,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:44,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:44,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170522916] [2023-12-21 01:48:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:44,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:44,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:44,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:44,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:44,843 INFO L87 Difference]: Start difference. First operand 789 states and 1010 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:45,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:45,177 INFO L93 Difference]: Finished difference Result 1635 states and 2086 transitions. [2023-12-21 01:48:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 01:48:45,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 01:48:45,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:45,191 INFO L225 Difference]: With dead ends: 1635 [2023-12-21 01:48:45,191 INFO L226 Difference]: Without dead ends: 887 [2023-12-21 01:48:45,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:48:45,193 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 186 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:45,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 731 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:45,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-12-21 01:48:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 805. [2023-12-21 01:48:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 669 states have (on average 1.218236173393124) internal successors, (815), 675 states have internal predecessors, (815), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1027 transitions. [2023-12-21 01:48:45,315 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1027 transitions. Word has length 114 [2023-12-21 01:48:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:45,315 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1027 transitions. [2023-12-21 01:48:45,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1027 transitions. [2023-12-21 01:48:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:48:45,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:45,316 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:45,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 01:48:45,316 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:45,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:45,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1152092946, now seen corresponding path program 1 times [2023-12-21 01:48:45,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:45,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049663884] [2023-12-21 01:48:45,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:45,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:45,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:45,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049663884] [2023-12-21 01:48:45,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049663884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:45,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:45,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:48:45,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419394384] [2023-12-21 01:48:45,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:45,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:48:45,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:45,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:48:45,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:48:45,457 INFO L87 Difference]: Start difference. First operand 805 states and 1027 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:45,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:45,613 INFO L93 Difference]: Finished difference Result 1897 states and 2410 transitions. [2023-12-21 01:48:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:48:45,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 01:48:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:45,616 INFO L225 Difference]: With dead ends: 1897 [2023-12-21 01:48:45,616 INFO L226 Difference]: Without dead ends: 1133 [2023-12-21 01:48:45,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:48:45,618 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 54 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:45,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 604 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:48:45,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2023-12-21 01:48:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 951. [2023-12-21 01:48:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 815 states have (on average 1.2417177914110429) internal successors, (1012), 821 states have internal predecessors, (1012), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:45,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1224 transitions. [2023-12-21 01:48:45,724 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1224 transitions. Word has length 114 [2023-12-21 01:48:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:45,724 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1224 transitions. [2023-12-21 01:48:45,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:48:45,724 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1224 transitions. [2023-12-21 01:48:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:48:45,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:45,725 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:45,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 01:48:45,725 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:45,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:45,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1763974674, now seen corresponding path program 1 times [2023-12-21 01:48:45,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:45,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795911257] [2023-12-21 01:48:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:45,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:46,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:46,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795911257] [2023-12-21 01:48:46,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795911257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:46,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:46,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 01:48:46,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624677120] [2023-12-21 01:48:46,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:46,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 01:48:46,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 01:48:46,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:48:46,218 INFO L87 Difference]: Start difference. First operand 951 states and 1224 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:46,564 INFO L93 Difference]: Finished difference Result 1902 states and 2459 transitions. [2023-12-21 01:48:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:48:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-12-21 01:48:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:46,567 INFO L225 Difference]: With dead ends: 1902 [2023-12-21 01:48:46,567 INFO L226 Difference]: Without dead ends: 992 [2023-12-21 01:48:46,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:46,569 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 91 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:46,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 505 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2023-12-21 01:48:46,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2023-12-21 01:48:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 856 states have (on average 1.2476635514018692) internal successors, (1068), 861 states have internal predecessors, (1068), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 101 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-21 01:48:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1280 transitions. [2023-12-21 01:48:46,672 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1280 transitions. Word has length 114 [2023-12-21 01:48:46,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:46,672 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1280 transitions. [2023-12-21 01:48:46,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:46,672 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1280 transitions. [2023-12-21 01:48:46,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:48:46,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:46,673 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:46,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 01:48:46,673 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:46,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash 812691466, now seen corresponding path program 1 times [2023-12-21 01:48:46,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:46,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487591530] [2023-12-21 01:48:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:46,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:47,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:47,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487591530] [2023-12-21 01:48:47,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487591530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:47,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:47,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:48:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719160208] [2023-12-21 01:48:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:47,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:48:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:48:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:48:47,238 INFO L87 Difference]: Start difference. First operand 992 states and 1280 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:47,702 INFO L93 Difference]: Finished difference Result 1777 states and 2287 transitions. [2023-12-21 01:48:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:48:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2023-12-21 01:48:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:47,705 INFO L225 Difference]: With dead ends: 1777 [2023-12-21 01:48:47,706 INFO L226 Difference]: Without dead ends: 1083 [2023-12-21 01:48:47,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:48:47,707 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 89 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:47,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 462 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:47,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-21 01:48:47,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 925. [2023-12-21 01:48:47,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 792 states have (on average 1.220959595959596) internal successors, (967), 797 states have internal predecessors, (967), 102 states have call successors, (102), 30 states have call predecessors, (102), 30 states have return successors, (102), 97 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 01:48:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1171 transitions. [2023-12-21 01:48:47,896 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1171 transitions. Word has length 114 [2023-12-21 01:48:47,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:47,897 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1171 transitions. [2023-12-21 01:48:47,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1171 transitions. [2023-12-21 01:48:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 01:48:47,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:47,898 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:47,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 01:48:47,898 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:47,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:47,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2052729928, now seen corresponding path program 1 times [2023-12-21 01:48:47,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:47,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802182040] [2023-12-21 01:48:47,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:47,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:48,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:48,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802182040] [2023-12-21 01:48:48,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802182040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:48,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:48,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:48:48,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398288904] [2023-12-21 01:48:48,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:48,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:48:48,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:48,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:48:48,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:48:48,268 INFO L87 Difference]: Start difference. First operand 925 states and 1171 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:48,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:48,659 INFO L93 Difference]: Finished difference Result 1484 states and 1883 transitions. [2023-12-21 01:48:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:48:48,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2023-12-21 01:48:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:48,662 INFO L225 Difference]: With dead ends: 1484 [2023-12-21 01:48:48,662 INFO L226 Difference]: Without dead ends: 913 [2023-12-21 01:48:48,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:48:48,663 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 66 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:48,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 407 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:48,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2023-12-21 01:48:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 692. [2023-12-21 01:48:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 602 states have (on average 1.2142857142857142) internal successors, (731), 604 states have internal predecessors, (731), 68 states have call successors, (68), 21 states have call predecessors, (68), 21 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:48:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 867 transitions. [2023-12-21 01:48:48,754 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 867 transitions. Word has length 115 [2023-12-21 01:48:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:48,754 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 867 transitions. [2023-12-21 01:48:48,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 867 transitions. [2023-12-21 01:48:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 01:48:48,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:48,755 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:48,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 01:48:48,755 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:48,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:48,755 INFO L85 PathProgramCache]: Analyzing trace with hash -291367159, now seen corresponding path program 1 times [2023-12-21 01:48:48,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:48,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839562756] [2023-12-21 01:48:48,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:48,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:50,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:50,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839562756] [2023-12-21 01:48:50,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839562756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:50,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:50,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 01:48:50,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143220702] [2023-12-21 01:48:50,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:50,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 01:48:50,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 01:48:50,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2023-12-21 01:48:50,770 INFO L87 Difference]: Start difference. First operand 692 states and 867 transitions. Second operand has 16 states, 14 states have (on average 3.5) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:52,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:52,648 INFO L93 Difference]: Finished difference Result 1686 states and 2106 transitions. [2023-12-21 01:48:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-21 01:48:52,649 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.5) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2023-12-21 01:48:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:52,652 INFO L225 Difference]: With dead ends: 1686 [2023-12-21 01:48:52,652 INFO L226 Difference]: Without dead ends: 1269 [2023-12-21 01:48:52,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=264, Invalid=1218, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 01:48:52,653 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 470 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:52,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1557 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 01:48:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2023-12-21 01:48:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1009. [2023-12-21 01:48:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 901 states have (on average 1.2197558268590456) internal successors, (1099), 906 states have internal predecessors, (1099), 80 states have call successors, (80), 27 states have call predecessors, (80), 27 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:48:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1259 transitions. [2023-12-21 01:48:52,789 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1259 transitions. Word has length 116 [2023-12-21 01:48:52,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:52,789 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1259 transitions. [2023-12-21 01:48:52,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.5) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:48:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1259 transitions. [2023-12-21 01:48:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 01:48:52,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:52,790 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:52,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 01:48:52,790 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:52,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:52,791 INFO L85 PathProgramCache]: Analyzing trace with hash -576545312, now seen corresponding path program 1 times [2023-12-21 01:48:52,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:52,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313511716] [2023-12-21 01:48:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:52,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:53,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:53,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313511716] [2023-12-21 01:48:53,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313511716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:53,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:53,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 01:48:53,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289883721] [2023-12-21 01:48:53,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:53,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 01:48:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:53,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 01:48:53,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:48:53,233 INFO L87 Difference]: Start difference. First operand 1009 states and 1259 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:53,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:53,800 INFO L93 Difference]: Finished difference Result 2039 states and 2540 transitions. [2023-12-21 01:48:53,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:48:53,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 01:48:53,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:53,803 INFO L225 Difference]: With dead ends: 2039 [2023-12-21 01:48:53,803 INFO L226 Difference]: Without dead ends: 1445 [2023-12-21 01:48:53,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:48:53,804 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 122 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:53,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 993 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:48:53,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2023-12-21 01:48:53,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1149. [2023-12-21 01:48:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1041 states have (on average 1.2209414024975984) internal successors, (1271), 1046 states have internal predecessors, (1271), 80 states have call successors, (80), 27 states have call predecessors, (80), 27 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:48:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1431 transitions. [2023-12-21 01:48:53,942 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1431 transitions. Word has length 117 [2023-12-21 01:48:53,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:53,942 INFO L495 AbstractCegarLoop]: Abstraction has 1149 states and 1431 transitions. [2023-12-21 01:48:53,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1431 transitions. [2023-12-21 01:48:53,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 01:48:53,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:53,943 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:53,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 01:48:53,944 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:53,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:53,945 INFO L85 PathProgramCache]: Analyzing trace with hash -268507744, now seen corresponding path program 1 times [2023-12-21 01:48:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:53,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491564728] [2023-12-21 01:48:53,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:53,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:54,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:54,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491564728] [2023-12-21 01:48:54,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491564728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:54,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:54,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:48:54,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870599898] [2023-12-21 01:48:54,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:54,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:48:54,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:48:54,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:48:54,206 INFO L87 Difference]: Start difference. First operand 1149 states and 1431 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:54,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:54,433 INFO L93 Difference]: Finished difference Result 2123 states and 2628 transitions. [2023-12-21 01:48:54,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:48:54,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 01:48:54,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:54,436 INFO L225 Difference]: With dead ends: 2123 [2023-12-21 01:48:54,436 INFO L226 Difference]: Without dead ends: 1429 [2023-12-21 01:48:54,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:48:54,439 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 64 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:54,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 754 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:48:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2023-12-21 01:48:54,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1267. [2023-12-21 01:48:54,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1159 states have (on average 1.2122519413287316) internal successors, (1405), 1164 states have internal predecessors, (1405), 80 states have call successors, (80), 27 states have call predecessors, (80), 27 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:48:54,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1565 transitions. [2023-12-21 01:48:54,599 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1565 transitions. Word has length 117 [2023-12-21 01:48:54,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:54,599 INFO L495 AbstractCegarLoop]: Abstraction has 1267 states and 1565 transitions. [2023-12-21 01:48:54,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:48:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1565 transitions. [2023-12-21 01:48:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:48:54,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:54,600 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:54,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 01:48:54,600 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:54,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash -7599633, now seen corresponding path program 1 times [2023-12-21 01:48:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:54,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356007221] [2023-12-21 01:48:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:54,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:55,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:55,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356007221] [2023-12-21 01:48:55,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356007221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:55,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:55,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:48:55,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002738017] [2023-12-21 01:48:55,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:55,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:48:55,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:55,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:48:55,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:48:55,442 INFO L87 Difference]: Start difference. First operand 1267 states and 1565 transitions. Second operand has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:56,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:56,126 INFO L93 Difference]: Finished difference Result 2772 states and 3422 transitions. [2023-12-21 01:48:56,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:48:56,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 01:48:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:56,131 INFO L225 Difference]: With dead ends: 2772 [2023-12-21 01:48:56,131 INFO L226 Difference]: Without dead ends: 1963 [2023-12-21 01:48:56,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:48:56,133 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 188 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:56,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 938 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 01:48:56,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2023-12-21 01:48:56,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1434. [2023-12-21 01:48:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1326 states have (on average 1.2187028657616892) internal successors, (1616), 1331 states have internal predecessors, (1616), 80 states have call successors, (80), 27 states have call predecessors, (80), 27 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:48:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1776 transitions. [2023-12-21 01:48:56,282 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1776 transitions. Word has length 118 [2023-12-21 01:48:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:56,282 INFO L495 AbstractCegarLoop]: Abstraction has 1434 states and 1776 transitions. [2023-12-21 01:48:56,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1776 transitions. [2023-12-21 01:48:56,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:48:56,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:56,283 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:56,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 01:48:56,283 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:56,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:56,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1028667987, now seen corresponding path program 1 times [2023-12-21 01:48:56,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:56,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843305778] [2023-12-21 01:48:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:56,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:56,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843305778] [2023-12-21 01:48:56,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843305778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:56,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:56,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:48:56,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840356074] [2023-12-21 01:48:56,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:56,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:48:56,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:56,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:48:56,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:48:56,921 INFO L87 Difference]: Start difference. First operand 1434 states and 1776 transitions. Second operand has 8 states, 5 states have (on average 10.2) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:57,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:57,274 INFO L93 Difference]: Finished difference Result 3230 states and 3977 transitions. [2023-12-21 01:48:57,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:48:57,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 10.2) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 01:48:57,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:57,278 INFO L225 Difference]: With dead ends: 3230 [2023-12-21 01:48:57,278 INFO L226 Difference]: Without dead ends: 2347 [2023-12-21 01:48:57,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:48:57,280 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 121 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:57,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 672 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:48:57,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2023-12-21 01:48:57,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 1476. [2023-12-21 01:48:57,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1368 states have (on average 1.226608187134503) internal successors, (1678), 1373 states have internal predecessors, (1678), 80 states have call successors, (80), 27 states have call predecessors, (80), 27 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:48:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1838 transitions. [2023-12-21 01:48:57,443 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1838 transitions. Word has length 118 [2023-12-21 01:48:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:57,443 INFO L495 AbstractCegarLoop]: Abstraction has 1476 states and 1838 transitions. [2023-12-21 01:48:57,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 10.2) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1838 transitions. [2023-12-21 01:48:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:48:57,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:57,444 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:57,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 01:48:57,444 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:57,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:57,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2039785237, now seen corresponding path program 1 times [2023-12-21 01:48:57,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:57,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081730424] [2023-12-21 01:48:57,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:57,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:48:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:48:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:48:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:48:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:48:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:48:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:48:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:48:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:48:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:48:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:48:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:48:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:48:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:48:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:48:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:48:58,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:48:58,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081730424] [2023-12-21 01:48:58,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081730424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:48:58,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:48:58,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 01:48:58,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356937999] [2023-12-21 01:48:58,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:48:58,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 01:48:58,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:48:58,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 01:48:58,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:48:58,276 INFO L87 Difference]: Start difference. First operand 1476 states and 1838 transitions. Second operand has 13 states, 10 states have (on average 5.1) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:59,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:48:59,317 INFO L93 Difference]: Finished difference Result 2977 states and 3712 transitions. [2023-12-21 01:48:59,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 01:48:59,317 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.1) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 01:48:59,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:48:59,321 INFO L225 Difference]: With dead ends: 2977 [2023-12-21 01:48:59,321 INFO L226 Difference]: Without dead ends: 2055 [2023-12-21 01:48:59,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2023-12-21 01:48:59,322 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 283 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 01:48:59,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1111 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 01:48:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2023-12-21 01:48:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1477. [2023-12-21 01:48:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1368 states have (on average 1.2288011695906433) internal successors, (1681), 1373 states have internal predecessors, (1681), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:48:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 1841 transitions. [2023-12-21 01:48:59,456 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 1841 transitions. Word has length 118 [2023-12-21 01:48:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:48:59,456 INFO L495 AbstractCegarLoop]: Abstraction has 1477 states and 1841 transitions. [2023-12-21 01:48:59,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.1) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:48:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 1841 transitions. [2023-12-21 01:48:59,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:48:59,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:48:59,457 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:48:59,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 01:48:59,458 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:48:59,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:48:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash 81455407, now seen corresponding path program 1 times [2023-12-21 01:48:59,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:48:59,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202319212] [2023-12-21 01:48:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:48:59,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:48:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:00,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:00,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202319212] [2023-12-21 01:49:00,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202319212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:00,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:00,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:49:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568033543] [2023-12-21 01:49:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:00,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:49:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:00,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:49:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:00,271 INFO L87 Difference]: Start difference. First operand 1477 states and 1841 transitions. Second operand has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:49:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:00,869 INFO L93 Difference]: Finished difference Result 2857 states and 3588 transitions. [2023-12-21 01:49:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:49:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 01:49:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:00,872 INFO L225 Difference]: With dead ends: 2857 [2023-12-21 01:49:00,872 INFO L226 Difference]: Without dead ends: 2017 [2023-12-21 01:49:00,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:49:00,873 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 142 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:00,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 981 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 01:49:00,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2023-12-21 01:49:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1646. [2023-12-21 01:49:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1537 states have (on average 1.232921275211451) internal successors, (1895), 1542 states have internal predecessors, (1895), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2055 transitions. [2023-12-21 01:49:01,016 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2055 transitions. Word has length 118 [2023-12-21 01:49:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:01,017 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 2055 transitions. [2023-12-21 01:49:01,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:49:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2055 transitions. [2023-12-21 01:49:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:49:01,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:01,018 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:01,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 01:49:01,018 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:01,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:01,018 INFO L85 PathProgramCache]: Analyzing trace with hash -929661843, now seen corresponding path program 1 times [2023-12-21 01:49:01,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:01,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130230495] [2023-12-21 01:49:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:01,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:01,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:01,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130230495] [2023-12-21 01:49:01,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130230495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:01,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:01,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:49:01,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324923025] [2023-12-21 01:49:01,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:01,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:49:01,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:01,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:49:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:01,590 INFO L87 Difference]: Start difference. First operand 1646 states and 2055 transitions. Second operand has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:49:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:02,355 INFO L93 Difference]: Finished difference Result 3249 states and 4067 transitions. [2023-12-21 01:49:02,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 01:49:02,355 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2023-12-21 01:49:02,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:02,358 INFO L225 Difference]: With dead ends: 3249 [2023-12-21 01:49:02,358 INFO L226 Difference]: Without dead ends: 2254 [2023-12-21 01:49:02,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-21 01:49:02,360 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 261 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:02,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 739 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 01:49:02,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2023-12-21 01:49:02,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1651. [2023-12-21 01:49:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1542 states have (on average 1.2224383916990922) internal successors, (1885), 1547 states have internal predecessors, (1885), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2045 transitions. [2023-12-21 01:49:02,504 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2045 transitions. Word has length 118 [2023-12-21 01:49:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:02,504 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2045 transitions. [2023-12-21 01:49:02,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:49:02,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2045 transitions. [2023-12-21 01:49:02,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:49:02,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:02,505 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:02,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 01:49:02,506 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:02,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:02,506 INFO L85 PathProgramCache]: Analyzing trace with hash 295926953, now seen corresponding path program 1 times [2023-12-21 01:49:02,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:02,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500177077] [2023-12-21 01:49:02,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:02,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:03,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:03,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500177077] [2023-12-21 01:49:03,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500177077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:03,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:03,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:49:03,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112255327] [2023-12-21 01:49:03,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:03,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:49:03,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:49:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:03,041 INFO L87 Difference]: Start difference. First operand 1651 states and 2045 transitions. Second operand has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:49:03,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:03,668 INFO L93 Difference]: Finished difference Result 3235 states and 4009 transitions. [2023-12-21 01:49:03,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 01:49:03,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2023-12-21 01:49:03,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:03,671 INFO L225 Difference]: With dead ends: 3235 [2023-12-21 01:49:03,671 INFO L226 Difference]: Without dead ends: 2217 [2023-12-21 01:49:03,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2023-12-21 01:49:03,673 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 219 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:03,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 779 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 01:49:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2023-12-21 01:49:03,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 1657. [2023-12-21 01:49:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1548 states have (on average 1.2138242894056848) internal successors, (1879), 1553 states have internal predecessors, (1879), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2039 transitions. [2023-12-21 01:49:03,811 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2039 transitions. Word has length 118 [2023-12-21 01:49:03,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:03,812 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2039 transitions. [2023-12-21 01:49:03,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:49:03,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2039 transitions. [2023-12-21 01:49:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:49:03,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:03,813 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:03,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 01:49:03,814 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:03,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:03,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1736258651, now seen corresponding path program 1 times [2023-12-21 01:49:03,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253054240] [2023-12-21 01:49:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:03,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:04,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253054240] [2023-12-21 01:49:04,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253054240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:04,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:04,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 01:49:04,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261552062] [2023-12-21 01:49:04,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:04,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 01:49:04,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:04,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 01:49:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:49:04,535 INFO L87 Difference]: Start difference. First operand 1657 states and 2039 transitions. Second operand has 13 states, 10 states have (on average 5.1) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:49:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:05,672 INFO L93 Difference]: Finished difference Result 3167 states and 3916 transitions. [2023-12-21 01:49:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 01:49:05,672 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.1) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 01:49:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:05,674 INFO L225 Difference]: With dead ends: 3167 [2023-12-21 01:49:05,674 INFO L226 Difference]: Without dead ends: 2173 [2023-12-21 01:49:05,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2023-12-21 01:49:05,676 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 277 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:05,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1048 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 01:49:05,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2173 states. [2023-12-21 01:49:05,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2173 to 1623. [2023-12-21 01:49:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1514 states have (on average 1.2133421400264202) internal successors, (1837), 1519 states have internal predecessors, (1837), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 1997 transitions. [2023-12-21 01:49:05,818 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 1997 transitions. Word has length 118 [2023-12-21 01:49:05,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:05,818 INFO L495 AbstractCegarLoop]: Abstraction has 1623 states and 1997 transitions. [2023-12-21 01:49:05,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.1) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:49:05,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 1997 transitions. [2023-12-21 01:49:05,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:49:05,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:05,819 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:05,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 01:49:05,820 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:05,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:05,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1858691545, now seen corresponding path program 1 times [2023-12-21 01:49:05,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:05,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208532735] [2023-12-21 01:49:05,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:05,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:06,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:06,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208532735] [2023-12-21 01:49:06,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208532735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:06,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:06,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 01:49:06,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599424998] [2023-12-21 01:49:06,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:06,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 01:49:06,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 01:49:06,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:49:06,342 INFO L87 Difference]: Start difference. First operand 1623 states and 1997 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:49:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:07,201 INFO L93 Difference]: Finished difference Result 3163 states and 3956 transitions. [2023-12-21 01:49:07,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 01:49:07,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2023-12-21 01:49:07,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:07,206 INFO L225 Difference]: With dead ends: 3163 [2023-12-21 01:49:07,206 INFO L226 Difference]: Without dead ends: 2143 [2023-12-21 01:49:07,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-12-21 01:49:07,208 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 179 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:07,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 946 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 01:49:07,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2023-12-21 01:49:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1647. [2023-12-21 01:49:07,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1538 states have (on average 1.2100130039011703) internal successors, (1861), 1543 states have internal predecessors, (1861), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2021 transitions. [2023-12-21 01:49:07,355 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2021 transitions. Word has length 118 [2023-12-21 01:49:07,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:07,355 INFO L495 AbstractCegarLoop]: Abstraction has 1647 states and 2021 transitions. [2023-12-21 01:49:07,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:49:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2021 transitions. [2023-12-21 01:49:07,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 01:49:07,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:07,357 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:07,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 01:49:07,357 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:07,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:07,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1926802661, now seen corresponding path program 1 times [2023-12-21 01:49:07,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:07,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552021256] [2023-12-21 01:49:07,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:07,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:07,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:07,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552021256] [2023-12-21 01:49:07,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552021256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:07,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:07,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 01:49:07,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830756063] [2023-12-21 01:49:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:07,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 01:49:07,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:07,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 01:49:07,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:49:07,975 INFO L87 Difference]: Start difference. First operand 1647 states and 2021 transitions. Second operand has 15 states, 12 states have (on average 4.25) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:49:09,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:09,260 INFO L93 Difference]: Finished difference Result 3016 states and 3730 transitions. [2023-12-21 01:49:09,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 01:49:09,261 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.25) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 01:49:09,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:09,263 INFO L225 Difference]: With dead ends: 3016 [2023-12-21 01:49:09,264 INFO L226 Difference]: Without dead ends: 2063 [2023-12-21 01:49:09,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2023-12-21 01:49:09,266 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 305 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:09,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1144 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 01:49:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2023-12-21 01:49:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1639. [2023-12-21 01:49:09,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1529 states have (on average 1.20863309352518) internal successors, (1848), 1534 states have internal predecessors, (1848), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2008 transitions. [2023-12-21 01:49:09,411 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2008 transitions. Word has length 118 [2023-12-21 01:49:09,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:09,411 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 2008 transitions. [2023-12-21 01:49:09,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.25) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 01:49:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2008 transitions. [2023-12-21 01:49:09,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 01:49:09,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:09,412 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:09,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 01:49:09,412 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:09,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:09,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1792600725, now seen corresponding path program 1 times [2023-12-21 01:49:09,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:09,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873972869] [2023-12-21 01:49:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:09,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:10,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:10,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873972869] [2023-12-21 01:49:10,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873972869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:10,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:10,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 01:49:10,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689167398] [2023-12-21 01:49:10,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:10,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 01:49:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 01:49:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2023-12-21 01:49:10,318 INFO L87 Difference]: Start difference. First operand 1639 states and 2008 transitions. Second operand has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:49:11,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:11,806 INFO L93 Difference]: Finished difference Result 3410 states and 4221 transitions. [2023-12-21 01:49:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 01:49:11,807 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2023-12-21 01:49:11,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:11,809 INFO L225 Difference]: With dead ends: 3410 [2023-12-21 01:49:11,809 INFO L226 Difference]: Without dead ends: 2482 [2023-12-21 01:49:11,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=1092, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 01:49:11,811 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 358 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:11,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1532 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 01:49:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2023-12-21 01:49:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1827. [2023-12-21 01:49:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1717 states have (on average 1.2242283051834595) internal successors, (2102), 1722 states have internal predecessors, (2102), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2262 transitions. [2023-12-21 01:49:11,960 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2262 transitions. Word has length 120 [2023-12-21 01:49:11,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:11,961 INFO L495 AbstractCegarLoop]: Abstraction has 1827 states and 2262 transitions. [2023-12-21 01:49:11,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 01:49:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2262 transitions. [2023-12-21 01:49:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 01:49:11,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:11,962 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:11,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 01:49:11,962 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:11,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:11,962 INFO L85 PathProgramCache]: Analyzing trace with hash 781483475, now seen corresponding path program 1 times [2023-12-21 01:49:11,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:11,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259901857] [2023-12-21 01:49:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:11,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:12,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:12,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259901857] [2023-12-21 01:49:12,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259901857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:12,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:12,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:49:12,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182217379] [2023-12-21 01:49:12,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:12,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:12,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:12,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:12,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:12,101 INFO L87 Difference]: Start difference. First operand 1827 states and 2262 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:12,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:12,386 INFO L93 Difference]: Finished difference Result 3598 states and 4454 transitions. [2023-12-21 01:49:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:49:12,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2023-12-21 01:49:12,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:12,389 INFO L225 Difference]: With dead ends: 3598 [2023-12-21 01:49:12,389 INFO L226 Difference]: Without dead ends: 2528 [2023-12-21 01:49:12,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:12,390 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 110 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:12,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 434 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:12,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2023-12-21 01:49:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1827. [2023-12-21 01:49:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1717 states have (on average 1.2090856144437974) internal successors, (2076), 1722 states have internal predecessors, (2076), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2236 transitions. [2023-12-21 01:49:12,551 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2236 transitions. Word has length 120 [2023-12-21 01:49:12,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:12,551 INFO L495 AbstractCegarLoop]: Abstraction has 1827 states and 2236 transitions. [2023-12-21 01:49:12,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:12,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2236 transitions. [2023-12-21 01:49:12,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 01:49:12,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:12,552 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:12,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 01:49:12,552 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:12,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash -919060989, now seen corresponding path program 1 times [2023-12-21 01:49:12,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:12,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520078993] [2023-12-21 01:49:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:12,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:13,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:13,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520078993] [2023-12-21 01:49:13,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520078993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:13,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:13,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 01:49:13,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7012651] [2023-12-21 01:49:13,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:13,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 01:49:13,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:13,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 01:49:13,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:49:13,255 INFO L87 Difference]: Start difference. First operand 1827 states and 2236 transitions. Second operand has 11 states, 7 states have (on average 7.571428571428571) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-21 01:49:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:13,852 INFO L93 Difference]: Finished difference Result 3182 states and 3932 transitions. [2023-12-21 01:49:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:49:13,853 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 7.571428571428571) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 120 [2023-12-21 01:49:13,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:13,855 INFO L225 Difference]: With dead ends: 3182 [2023-12-21 01:49:13,855 INFO L226 Difference]: Without dead ends: 2062 [2023-12-21 01:49:13,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-12-21 01:49:13,857 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 143 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:13,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 660 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:49:13,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2023-12-21 01:49:14,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1819. [2023-12-21 01:49:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1709 states have (on average 1.2088940901111762) internal successors, (2066), 1714 states have internal predecessors, (2066), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2226 transitions. [2023-12-21 01:49:14,005 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2226 transitions. Word has length 120 [2023-12-21 01:49:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:14,005 INFO L495 AbstractCegarLoop]: Abstraction has 1819 states and 2226 transitions. [2023-12-21 01:49:14,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 7.571428571428571) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-21 01:49:14,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2226 transitions. [2023-12-21 01:49:14,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 01:49:14,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:14,006 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:14,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 01:49:14,006 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:14,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:14,007 INFO L85 PathProgramCache]: Analyzing trace with hash -896428735, now seen corresponding path program 1 times [2023-12-21 01:49:14,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:14,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83901015] [2023-12-21 01:49:14,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:14,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:14,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:14,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83901015] [2023-12-21 01:49:14,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83901015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:14,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:14,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 01:49:14,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813658762] [2023-12-21 01:49:14,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:14,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 01:49:14,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 01:49:14,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:49:14,906 INFO L87 Difference]: Start difference. First operand 1819 states and 2226 transitions. Second operand has 14 states, 10 states have (on average 5.3) internal successors, (53), 14 states have internal predecessors, (53), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-21 01:49:15,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:15,973 INFO L93 Difference]: Finished difference Result 3244 states and 4005 transitions. [2023-12-21 01:49:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 01:49:15,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.3) internal successors, (53), 14 states have internal predecessors, (53), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 120 [2023-12-21 01:49:15,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:15,976 INFO L225 Difference]: With dead ends: 3244 [2023-12-21 01:49:15,976 INFO L226 Difference]: Without dead ends: 2174 [2023-12-21 01:49:15,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2023-12-21 01:49:15,977 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 246 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:15,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 1059 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 01:49:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2023-12-21 01:49:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1827. [2023-12-21 01:49:16,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1717 states have (on average 1.2079207920792079) internal successors, (2074), 1722 states have internal predecessors, (2074), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:16,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2234 transitions. [2023-12-21 01:49:16,133 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2234 transitions. Word has length 120 [2023-12-21 01:49:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:16,134 INFO L495 AbstractCegarLoop]: Abstraction has 1827 states and 2234 transitions. [2023-12-21 01:49:16,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.3) internal successors, (53), 14 states have internal predecessors, (53), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-21 01:49:16,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2234 transitions. [2023-12-21 01:49:16,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 01:49:16,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:16,135 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:16,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-21 01:49:16,135 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:16,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:16,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1613862443, now seen corresponding path program 1 times [2023-12-21 01:49:16,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:16,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418110375] [2023-12-21 01:49:16,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:16,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:16,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418110375] [2023-12-21 01:49:16,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418110375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:16,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:16,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:49:16,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309358159] [2023-12-21 01:49:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:16,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:16,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:16,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:16,272 INFO L87 Difference]: Start difference. First operand 1827 states and 2234 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:16,622 INFO L93 Difference]: Finished difference Result 3225 states and 3958 transitions. [2023-12-21 01:49:16,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:49:16,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2023-12-21 01:49:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:16,625 INFO L225 Difference]: With dead ends: 3225 [2023-12-21 01:49:16,625 INFO L226 Difference]: Without dead ends: 2055 [2023-12-21 01:49:16,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:49:16,627 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 80 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:16,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 441 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2023-12-21 01:49:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1648. [2023-12-21 01:49:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1538 states have (on average 1.20481144343303) internal successors, (1853), 1543 states have internal predecessors, (1853), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 01:49:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2013 transitions. [2023-12-21 01:49:16,781 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2013 transitions. Word has length 122 [2023-12-21 01:49:16,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:16,781 INFO L495 AbstractCegarLoop]: Abstraction has 1648 states and 2013 transitions. [2023-12-21 01:49:16,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:16,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2013 transitions. [2023-12-21 01:49:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 01:49:16,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:16,783 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:16,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 01:49:16,783 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:16,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:16,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1632660837, now seen corresponding path program 1 times [2023-12-21 01:49:16,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:16,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027596866] [2023-12-21 01:49:16,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:16,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:17,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:17,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027596866] [2023-12-21 01:49:17,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027596866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:17,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:17,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-21 01:49:17,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830047157] [2023-12-21 01:49:17,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:17,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 01:49:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 01:49:17,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-12-21 01:49:17,538 INFO L87 Difference]: Start difference. First operand 1648 states and 2013 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:49:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:19,276 INFO L93 Difference]: Finished difference Result 4095 states and 5082 transitions. [2023-12-21 01:49:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-21 01:49:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2023-12-21 01:49:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:19,279 INFO L225 Difference]: With dead ends: 4095 [2023-12-21 01:49:19,279 INFO L226 Difference]: Without dead ends: 3104 [2023-12-21 01:49:19,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=388, Invalid=1682, Unknown=0, NotChecked=0, Total=2070 [2023-12-21 01:49:19,280 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 601 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:19,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 2246 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 01:49:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2023-12-21 01:49:19,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 2122. [2023-12-21 01:49:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 1959 states have (on average 1.2036753445635529) internal successors, (2358), 1966 states have internal predecessors, (2358), 120 states have call successors, (120), 42 states have call predecessors, (120), 42 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2598 transitions. [2023-12-21 01:49:19,499 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2598 transitions. Word has length 122 [2023-12-21 01:49:19,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:19,500 INFO L495 AbstractCegarLoop]: Abstraction has 2122 states and 2598 transitions. [2023-12-21 01:49:19,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:49:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2598 transitions. [2023-12-21 01:49:19,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-21 01:49:19,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:19,502 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:19,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 01:49:19,502 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:19,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:19,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1430054365, now seen corresponding path program 1 times [2023-12-21 01:49:19,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:19,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664923409] [2023-12-21 01:49:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:19,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 01:49:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 01:49:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 01:49:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-21 01:49:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-21 01:49:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-21 01:49:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-21 01:49:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-21 01:49:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-21 01:49:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-21 01:49:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-21 01:49:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-21 01:49:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-21 01:49:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-21 01:49:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2023-12-21 01:49:21,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:21,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664923409] [2023-12-21 01:49:21,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664923409] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:21,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993189522] [2023-12-21 01:49:21,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:21,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:21,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:21,719 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) [2023-12-21 01:49:21,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 01:49:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:21,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 01:49:21,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:22,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-21 01:49:22,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:22,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 52 [2023-12-21 01:49:22,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:22,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 28 [2023-12-21 01:49:22,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:22,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 28 [2023-12-21 01:49:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 388 proven. 9 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2023-12-21 01:49:22,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:49:22,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2023-12-21 01:49:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 97 proven. 9 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2023-12-21 01:49:22,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993189522] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:49:22,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 01:49:22,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 26 [2023-12-21 01:49:22,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355527475] [2023-12-21 01:49:22,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 01:49:22,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 01:49:22,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:22,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 01:49:22,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2023-12-21 01:49:22,507 INFO L87 Difference]: Start difference. First operand 2122 states and 2598 transitions. Second operand has 26 states, 21 states have (on average 5.095238095238095) internal successors, (107), 26 states have internal predecessors, (107), 8 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 8 states have call successors, (25) [2023-12-21 01:49:26,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:26,437 INFO L93 Difference]: Finished difference Result 3914 states and 4843 transitions. [2023-12-21 01:49:26,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-12-21 01:49:26,438 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 5.095238095238095) internal successors, (107), 26 states have internal predecessors, (107), 8 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 8 states have call successors, (25) Word has length 215 [2023-12-21 01:49:26,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:26,441 INFO L225 Difference]: With dead ends: 3914 [2023-12-21 01:49:26,441 INFO L226 Difference]: Without dead ends: 2482 [2023-12-21 01:49:26,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1908 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1058, Invalid=6598, Unknown=0, NotChecked=0, Total=7656 [2023-12-21 01:49:26,444 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 624 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:26,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 971 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2588 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 01:49:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2023-12-21 01:49:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 2299. [2023-12-21 01:49:26,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2128 states have (on average 1.1968984962406015) internal successors, (2547), 2135 states have internal predecessors, (2547), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2787 transitions. [2023-12-21 01:49:26,714 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2787 transitions. Word has length 215 [2023-12-21 01:49:26,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:26,714 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 2787 transitions. [2023-12-21 01:49:26,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 5.095238095238095) internal successors, (107), 26 states have internal predecessors, (107), 8 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 8 states have call successors, (25) [2023-12-21 01:49:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2787 transitions. [2023-12-21 01:49:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-21 01:49:26,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:26,718 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:26,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:26,918 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,SelfDestructingSolverStorable56 [2023-12-21 01:49:26,919 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:26,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:26,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1248768388, now seen corresponding path program 1 times [2023-12-21 01:49:26,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:26,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261976519] [2023-12-21 01:49:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:26,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 01:49:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 01:49:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 01:49:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 01:49:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 01:49:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 01:49:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 01:49:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 01:49:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 01:49:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 01:49:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 01:49:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 01:49:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 01:49:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 01:49:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2023-12-21 01:49:27,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:27,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261976519] [2023-12-21 01:49:27,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261976519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:27,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:27,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532467562] [2023-12-21 01:49:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:27,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:49:27,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:27,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:49:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:27,177 INFO L87 Difference]: Start difference. First operand 2299 states and 2787 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:27,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:27,534 INFO L93 Difference]: Finished difference Result 4669 states and 5636 transitions. [2023-12-21 01:49:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:49:27,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 227 [2023-12-21 01:49:27,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:27,537 INFO L225 Difference]: With dead ends: 4669 [2023-12-21 01:49:27,538 INFO L226 Difference]: Without dead ends: 2493 [2023-12-21 01:49:27,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:27,540 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 50 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 579 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 [2023-12-21 01:49:27,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 579 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2023-12-21 01:49:27,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2299. [2023-12-21 01:49:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2128 states have (on average 1.1921992481203008) internal successors, (2537), 2135 states have internal predecessors, (2537), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2777 transitions. [2023-12-21 01:49:27,788 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2777 transitions. Word has length 227 [2023-12-21 01:49:27,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:27,788 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 2777 transitions. [2023-12-21 01:49:27,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:27,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2777 transitions. [2023-12-21 01:49:27,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-21 01:49:27,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:27,792 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:27,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 01:49:27,792 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:27,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:27,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1641795398, now seen corresponding path program 1 times [2023-12-21 01:49:27,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:27,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866020300] [2023-12-21 01:49:27,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:27,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 01:49:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 01:49:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 01:49:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 01:49:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 01:49:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 01:49:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 01:49:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 01:49:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 01:49:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 01:49:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 01:49:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 01:49:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 01:49:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 01:49:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2023-12-21 01:49:28,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:28,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866020300] [2023-12-21 01:49:28,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866020300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:28,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:28,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:49:28,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758893757] [2023-12-21 01:49:28,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:28,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:28,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:28,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:28,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:28,189 INFO L87 Difference]: Start difference. First operand 2299 states and 2777 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:28,741 INFO L93 Difference]: Finished difference Result 5084 states and 6117 transitions. [2023-12-21 01:49:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 01:49:28,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 227 [2023-12-21 01:49:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:28,745 INFO L225 Difference]: With dead ends: 5084 [2023-12-21 01:49:28,745 INFO L226 Difference]: Without dead ends: 2908 [2023-12-21 01:49:28,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:49:28,747 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 116 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:28,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 996 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2023-12-21 01:49:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2291. [2023-12-21 01:49:29,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 2120 states have (on average 1.1919811320754716) internal successors, (2527), 2127 states have internal predecessors, (2527), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 2767 transitions. [2023-12-21 01:49:29,029 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 2767 transitions. Word has length 227 [2023-12-21 01:49:29,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:29,029 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 2767 transitions. [2023-12-21 01:49:29,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 2767 transitions. [2023-12-21 01:49:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-21 01:49:29,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:29,032 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:29,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-21 01:49:29,032 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:29,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash 639980370, now seen corresponding path program 1 times [2023-12-21 01:49:29,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:29,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612530771] [2023-12-21 01:49:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:29,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-21 01:49:29,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:29,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612530771] [2023-12-21 01:49:29,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612530771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:29,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:29,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:49:29,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412306553] [2023-12-21 01:49:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:29,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:29,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:29,231 INFO L87 Difference]: Start difference. First operand 2291 states and 2767 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:29,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:29,593 INFO L93 Difference]: Finished difference Result 3808 states and 4637 transitions. [2023-12-21 01:49:29,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:49:29,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 227 [2023-12-21 01:49:29,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:29,596 INFO L225 Difference]: With dead ends: 3808 [2023-12-21 01:49:29,596 INFO L226 Difference]: Without dead ends: 2235 [2023-12-21 01:49:29,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:29,597 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 35 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:29,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 323 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2023-12-21 01:49:29,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2187. [2023-12-21 01:49:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2016 states have (on average 1.1780753968253967) internal successors, (2375), 2023 states have internal predecessors, (2375), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 2615 transitions. [2023-12-21 01:49:29,846 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 2615 transitions. Word has length 227 [2023-12-21 01:49:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:29,846 INFO L495 AbstractCegarLoop]: Abstraction has 2187 states and 2615 transitions. [2023-12-21 01:49:29,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 2615 transitions. [2023-12-21 01:49:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-21 01:49:29,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:29,849 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:29,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 01:49:29,849 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:29,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:29,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1407534348, now seen corresponding path program 1 times [2023-12-21 01:49:29,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:29,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156507015] [2023-12-21 01:49:29,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:29,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 01:49:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 01:49:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 01:49:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 01:49:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 01:49:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 01:49:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 01:49:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 01:49:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 01:49:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 01:49:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 01:49:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 01:49:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 01:49:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 01:49:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:29,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1547 trivial. 0 not checked. [2023-12-21 01:49:29,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:29,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156507015] [2023-12-21 01:49:29,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156507015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:29,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:29,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:49:29,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269924832] [2023-12-21 01:49:29,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:29,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:49:29,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:29,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:49:29,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:49:29,922 INFO L87 Difference]: Start difference. First operand 2187 states and 2615 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:30,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:30,182 INFO L93 Difference]: Finished difference Result 3541 states and 4273 transitions. [2023-12-21 01:49:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:49:30,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 230 [2023-12-21 01:49:30,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:30,184 INFO L225 Difference]: With dead ends: 3541 [2023-12-21 01:49:30,184 INFO L226 Difference]: Without dead ends: 1893 [2023-12-21 01:49:30,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:49:30,186 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 206 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 [2023-12-21 01:49:30,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:30,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2023-12-21 01:49:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1885. [2023-12-21 01:49:30,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1714 states have (on average 1.1662777129521587) internal successors, (1999), 1721 states have internal predecessors, (1999), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2239 transitions. [2023-12-21 01:49:30,430 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2239 transitions. Word has length 230 [2023-12-21 01:49:30,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:30,430 INFO L495 AbstractCegarLoop]: Abstraction has 1885 states and 2239 transitions. [2023-12-21 01:49:30,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:30,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2239 transitions. [2023-12-21 01:49:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-21 01:49:30,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:30,433 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:30,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 01:49:30,433 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:30,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:30,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1266985738, now seen corresponding path program 1 times [2023-12-21 01:49:30,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:30,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907596203] [2023-12-21 01:49:30,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:30,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 01:49:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 01:49:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 01:49:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 01:49:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 01:49:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 01:49:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 01:49:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 01:49:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 01:49:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 01:49:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 01:49:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 01:49:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 01:49:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 01:49:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2023-12-21 01:49:30,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:30,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907596203] [2023-12-21 01:49:30,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907596203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:30,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:30,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:49:30,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101738770] [2023-12-21 01:49:30,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:30,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:30,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:30,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:30,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:30,845 INFO L87 Difference]: Start difference. First operand 1885 states and 2239 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:31,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:31,188 INFO L93 Difference]: Finished difference Result 3409 states and 4051 transitions. [2023-12-21 01:49:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 01:49:31,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 230 [2023-12-21 01:49:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:31,191 INFO L225 Difference]: With dead ends: 3409 [2023-12-21 01:49:31,191 INFO L226 Difference]: Without dead ends: 2045 [2023-12-21 01:49:31,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:31,193 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 105 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:31,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 554 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:31,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2023-12-21 01:49:31,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1798. [2023-12-21 01:49:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1627 states have (on average 1.1573448063921328) internal successors, (1883), 1634 states have internal predecessors, (1883), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2123 transitions. [2023-12-21 01:49:31,439 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2123 transitions. Word has length 230 [2023-12-21 01:49:31,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:31,439 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2123 transitions. [2023-12-21 01:49:31,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:31,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2123 transitions. [2023-12-21 01:49:31,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-21 01:49:31,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:31,441 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:31,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-21 01:49:31,442 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:31,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:31,442 INFO L85 PathProgramCache]: Analyzing trace with hash 520891488, now seen corresponding path program 1 times [2023-12-21 01:49:31,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:31,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585860778] [2023-12-21 01:49:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:31,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2023-12-21 01:49:32,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:32,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585860778] [2023-12-21 01:49:32,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585860778] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:32,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372876771] [2023-12-21 01:49:32,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:32,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:32,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:32,376 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) [2023-12-21 01:49:32,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 01:49:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:32,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 01:49:32,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:32,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-21 01:49:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2023-12-21 01:49:32,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:32,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372876771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:32,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 01:49:32,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-21 01:49:32,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026743170] [2023-12-21 01:49:32,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:32,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:32,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:32,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:32,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:49:32,690 INFO L87 Difference]: Start difference. First operand 1798 states and 2123 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:33,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:33,041 INFO L93 Difference]: Finished difference Result 3301 states and 3940 transitions. [2023-12-21 01:49:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:49:33,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 231 [2023-12-21 01:49:33,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:33,044 INFO L225 Difference]: With dead ends: 3301 [2023-12-21 01:49:33,044 INFO L226 Difference]: Without dead ends: 2112 [2023-12-21 01:49:33,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:49:33,045 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 65 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:33,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 350 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2023-12-21 01:49:33,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 1834. [2023-12-21 01:49:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1663 states have (on average 1.153938665063139) internal successors, (1919), 1670 states have internal predecessors, (1919), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2159 transitions. [2023-12-21 01:49:33,310 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2159 transitions. Word has length 231 [2023-12-21 01:49:33,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:33,310 INFO L495 AbstractCegarLoop]: Abstraction has 1834 states and 2159 transitions. [2023-12-21 01:49:33,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2159 transitions. [2023-12-21 01:49:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-21 01:49:33,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:33,313 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:33,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 01:49:33,518 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,SelfDestructingSolverStorable62 [2023-12-21 01:49:33,521 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:33,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:33,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1067456414, now seen corresponding path program 1 times [2023-12-21 01:49:33,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:33,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525897143] [2023-12-21 01:49:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:33,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-21 01:49:34,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525897143] [2023-12-21 01:49:34,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525897143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:34,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:34,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:49:34,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028762625] [2023-12-21 01:49:34,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:34,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:34,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:34,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:34,026 INFO L87 Difference]: Start difference. First operand 1834 states and 2159 transitions. Second operand has 7 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:34,419 INFO L93 Difference]: Finished difference Result 2711 states and 3214 transitions. [2023-12-21 01:49:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:49:34,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 231 [2023-12-21 01:49:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:34,421 INFO L225 Difference]: With dead ends: 2711 [2023-12-21 01:49:34,421 INFO L226 Difference]: Without dead ends: 1828 [2023-12-21 01:49:34,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:49:34,423 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 77 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:34,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 330 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2023-12-21 01:49:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1792. [2023-12-21 01:49:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1621 states have (on average 1.148056755089451) internal successors, (1861), 1628 states have internal predecessors, (1861), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2101 transitions. [2023-12-21 01:49:34,667 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2101 transitions. Word has length 231 [2023-12-21 01:49:34,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:34,667 INFO L495 AbstractCegarLoop]: Abstraction has 1792 states and 2101 transitions. [2023-12-21 01:49:34,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2101 transitions. [2023-12-21 01:49:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-21 01:49:34,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:34,670 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:34,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-21 01:49:34,670 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:34,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:34,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2073169958, now seen corresponding path program 1 times [2023-12-21 01:49:34,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:34,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832686036] [2023-12-21 01:49:34,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:34,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:35,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1536 trivial. 0 not checked. [2023-12-21 01:49:35,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:35,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832686036] [2023-12-21 01:49:35,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832686036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:35,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:35,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:49:35,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38626345] [2023-12-21 01:49:35,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:35,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:35,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:35,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:35,209 INFO L87 Difference]: Start difference. First operand 1792 states and 2101 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 01:49:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:35,704 INFO L93 Difference]: Finished difference Result 3048 states and 3599 transitions. [2023-12-21 01:49:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:49:35,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 231 [2023-12-21 01:49:35,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:35,706 INFO L225 Difference]: With dead ends: 3048 [2023-12-21 01:49:35,707 INFO L226 Difference]: Without dead ends: 1868 [2023-12-21 01:49:35,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:49:35,708 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 161 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:35,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 359 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:49:35,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2023-12-21 01:49:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1756. [2023-12-21 01:49:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1585 states have (on average 1.1324921135646688) internal successors, (1795), 1592 states have internal predecessors, (1795), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2035 transitions. [2023-12-21 01:49:35,968 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2035 transitions. Word has length 231 [2023-12-21 01:49:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:35,968 INFO L495 AbstractCegarLoop]: Abstraction has 1756 states and 2035 transitions. [2023-12-21 01:49:35,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 01:49:35,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2035 transitions. [2023-12-21 01:49:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-21 01:49:35,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:35,971 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:35,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-21 01:49:35,971 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:35,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:35,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1062052708, now seen corresponding path program 1 times [2023-12-21 01:49:35,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:35,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626596424] [2023-12-21 01:49:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:35,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-21 01:49:36,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:36,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626596424] [2023-12-21 01:49:36,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626596424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:36,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:36,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:36,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624680007] [2023-12-21 01:49:36,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:36,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:49:36,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:49:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:36,446 INFO L87 Difference]: Start difference. First operand 1756 states and 2035 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:36,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:36,833 INFO L93 Difference]: Finished difference Result 3012 states and 3503 transitions. [2023-12-21 01:49:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:49:36,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 231 [2023-12-21 01:49:36,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:36,835 INFO L225 Difference]: With dead ends: 3012 [2023-12-21 01:49:36,835 INFO L226 Difference]: Without dead ends: 1868 [2023-12-21 01:49:36,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:36,837 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 60 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:36,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 388 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2023-12-21 01:49:37,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1756. [2023-12-21 01:49:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1585 states have (on average 1.113564668769716) internal successors, (1765), 1592 states have internal predecessors, (1765), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2005 transitions. [2023-12-21 01:49:37,082 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2005 transitions. Word has length 231 [2023-12-21 01:49:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:37,082 INFO L495 AbstractCegarLoop]: Abstraction has 1756 states and 2005 transitions. [2023-12-21 01:49:37,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2005 transitions. [2023-12-21 01:49:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-21 01:49:37,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:37,084 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:37,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 01:49:37,085 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:37,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1438417759, now seen corresponding path program 1 times [2023-12-21 01:49:37,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:37,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941661137] [2023-12-21 01:49:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:37,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-21 01:49:37,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:37,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941661137] [2023-12-21 01:49:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941661137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:37,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:37,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:49:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375664888] [2023-12-21 01:49:37,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:37,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:37,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:37,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:37,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:37,873 INFO L87 Difference]: Start difference. First operand 1756 states and 2005 transitions. Second operand has 7 states, 5 states have (on average 17.0) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 01:49:38,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:38,353 INFO L93 Difference]: Finished difference Result 3036 states and 3435 transitions. [2023-12-21 01:49:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:49:38,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 17.0) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 236 [2023-12-21 01:49:38,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:38,356 INFO L225 Difference]: With dead ends: 3036 [2023-12-21 01:49:38,356 INFO L226 Difference]: Without dead ends: 2228 [2023-12-21 01:49:38,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:49:38,358 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 96 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:38,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 569 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:49:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2023-12-21 01:49:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1727. [2023-12-21 01:49:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1556 states have (on average 1.108611825192802) internal successors, (1725), 1563 states have internal predecessors, (1725), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 1965 transitions. [2023-12-21 01:49:38,619 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 1965 transitions. Word has length 236 [2023-12-21 01:49:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:38,619 INFO L495 AbstractCegarLoop]: Abstraction has 1727 states and 1965 transitions. [2023-12-21 01:49:38,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 17.0) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 01:49:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 1965 transitions. [2023-12-21 01:49:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-21 01:49:38,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:38,622 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:38,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-21 01:49:38,622 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:38,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:38,622 INFO L85 PathProgramCache]: Analyzing trace with hash 868527459, now seen corresponding path program 1 times [2023-12-21 01:49:38,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:38,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341977286] [2023-12-21 01:49:38,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:38,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-21 01:49:39,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:39,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341977286] [2023-12-21 01:49:39,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341977286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:39,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:39,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:49:39,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191214136] [2023-12-21 01:49:39,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:39,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:49:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:39,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:49:39,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:39,871 INFO L87 Difference]: Start difference. First operand 1727 states and 1965 transitions. Second operand has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 01:49:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:40,476 INFO L93 Difference]: Finished difference Result 2707 states and 3074 transitions. [2023-12-21 01:49:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 01:49:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) Word has length 236 [2023-12-21 01:49:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:40,479 INFO L225 Difference]: With dead ends: 2707 [2023-12-21 01:49:40,479 INFO L226 Difference]: Without dead ends: 1899 [2023-12-21 01:49:40,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:49:40,480 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 152 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:40,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 786 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:49:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2023-12-21 01:49:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1715. [2023-12-21 01:49:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1544 states have (on average 1.1055699481865284) internal successors, (1707), 1551 states have internal predecessors, (1707), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 1947 transitions. [2023-12-21 01:49:40,726 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 1947 transitions. Word has length 236 [2023-12-21 01:49:40,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:40,726 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 1947 transitions. [2023-12-21 01:49:40,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 01:49:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 1947 transitions. [2023-12-21 01:49:40,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-21 01:49:40,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:40,729 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:40,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-21 01:49:40,729 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:40,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:40,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1163658145, now seen corresponding path program 1 times [2023-12-21 01:49:40,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:40,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705867024] [2023-12-21 01:49:40,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:40,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2023-12-21 01:49:45,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:45,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705867024] [2023-12-21 01:49:45,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705867024] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:45,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015628872] [2023-12-21 01:49:45,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:45,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:45,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:45,582 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) [2023-12-21 01:49:45,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 01:49:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-21 01:49:45,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:46,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:46,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 35 [2023-12-21 01:49:46,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:46,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 25 [2023-12-21 01:49:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-21 01:49:46,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:46,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015628872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:46,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 01:49:46,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 28 [2023-12-21 01:49:46,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102530993] [2023-12-21 01:49:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:46,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:49:46,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:46,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:49:46,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-21 01:49:46,304 INFO L87 Difference]: Start difference. First operand 1715 states and 1947 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:46,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:46,844 INFO L93 Difference]: Finished difference Result 2676 states and 3018 transitions. [2023-12-21 01:49:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:49:46,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-21 01:49:46,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:46,847 INFO L225 Difference]: With dead ends: 2676 [2023-12-21 01:49:46,847 INFO L226 Difference]: Without dead ends: 1880 [2023-12-21 01:49:46,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2023-12-21 01:49:46,848 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 146 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:46,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 303 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:49:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2023-12-21 01:49:47,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1655. [2023-12-21 01:49:47,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1484 states have (on average 1.1004043126684635) internal successors, (1633), 1491 states have internal predecessors, (1633), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:47,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 1873 transitions. [2023-12-21 01:49:47,120 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 1873 transitions. Word has length 236 [2023-12-21 01:49:47,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:47,120 INFO L495 AbstractCegarLoop]: Abstraction has 1655 states and 1873 transitions. [2023-12-21 01:49:47,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:47,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 1873 transitions. [2023-12-21 01:49:47,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-21 01:49:47,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:47,123 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:47,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:47,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:47,324 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:47,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:47,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1532554973, now seen corresponding path program 1 times [2023-12-21 01:49:47,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:47,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950897342] [2023-12-21 01:49:47,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:47,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2023-12-21 01:49:47,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950897342] [2023-12-21 01:49:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950897342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:47,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:47,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:47,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54752830] [2023-12-21 01:49:47,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:47,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:49:47,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:47,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:49:47,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:47,885 INFO L87 Difference]: Start difference. First operand 1655 states and 1873 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:48,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:48,348 INFO L93 Difference]: Finished difference Result 2597 states and 2912 transitions. [2023-12-21 01:49:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:49:48,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 236 [2023-12-21 01:49:48,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:48,351 INFO L225 Difference]: With dead ends: 2597 [2023-12-21 01:49:48,351 INFO L226 Difference]: Without dead ends: 1861 [2023-12-21 01:49:48,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:49:48,352 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 70 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:48,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 470 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2023-12-21 01:49:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1619. [2023-12-21 01:49:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1448 states have (on average 1.0959944751381216) internal successors, (1587), 1455 states have internal predecessors, (1587), 120 states have call successors, (120), 50 states have call predecessors, (120), 50 states have return successors, (120), 113 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 01:49:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 1827 transitions. [2023-12-21 01:49:48,601 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 1827 transitions. Word has length 236 [2023-12-21 01:49:48,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:48,601 INFO L495 AbstractCegarLoop]: Abstraction has 1619 states and 1827 transitions. [2023-12-21 01:49:48,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 01:49:48,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 1827 transitions. [2023-12-21 01:49:48,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-21 01:49:48,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:48,603 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:48,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-21 01:49:48,604 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:48,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:48,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1509922719, now seen corresponding path program 1 times [2023-12-21 01:49:48,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:48,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939558163] [2023-12-21 01:49:48,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:48,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-21 01:49:49,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:49,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939558163] [2023-12-21 01:49:49,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939558163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:49,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:49,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:49:49,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058517263] [2023-12-21 01:49:49,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:49,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:49:49,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:49,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:49:49,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:49,673 INFO L87 Difference]: Start difference. First operand 1619 states and 1827 transitions. Second operand has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 01:49:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:50,429 INFO L93 Difference]: Finished difference Result 2947 states and 3317 transitions. [2023-12-21 01:49:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:49:50,430 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) Word has length 236 [2023-12-21 01:49:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:50,432 INFO L225 Difference]: With dead ends: 2947 [2023-12-21 01:49:50,432 INFO L226 Difference]: Without dead ends: 1911 [2023-12-21 01:49:50,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:49:50,433 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 109 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:50,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 903 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 01:49:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2023-12-21 01:49:50,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1695. [2023-12-21 01:49:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1511 states have (on average 1.0840502978160158) internal successors, (1638), 1520 states have internal predecessors, (1638), 128 states have call successors, (128), 55 states have call predecessors, (128), 55 states have return successors, (128), 119 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-21 01:49:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 1894 transitions. [2023-12-21 01:49:50,731 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 1894 transitions. Word has length 236 [2023-12-21 01:49:50,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:50,731 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 1894 transitions. [2023-12-21 01:49:50,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 01:49:50,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 1894 transitions. [2023-12-21 01:49:50,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-21 01:49:50,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:50,734 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:50,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-21 01:49:50,734 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:50,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1773927327, now seen corresponding path program 1 times [2023-12-21 01:49:50,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:50,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441445229] [2023-12-21 01:49:50,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:50,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2023-12-21 01:49:52,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:52,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441445229] [2023-12-21 01:49:52,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441445229] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:52,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368459107] [2023-12-21 01:49:52,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:52,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:52,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:52,720 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) [2023-12-21 01:49:52,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 01:49:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 01:49:52,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:53,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:53,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 33 [2023-12-21 01:49:53,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:53,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 23 [2023-12-21 01:49:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-21 01:49:53,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:53,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368459107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:53,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 01:49:53,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2023-12-21 01:49:53,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181324943] [2023-12-21 01:49:53,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:53,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:49:53,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:53,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:49:53,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-12-21 01:49:53,395 INFO L87 Difference]: Start difference. First operand 1695 states and 1894 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:53,998 INFO L93 Difference]: Finished difference Result 2873 states and 3211 transitions. [2023-12-21 01:49:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:49:53,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2023-12-21 01:49:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:54,000 INFO L225 Difference]: With dead ends: 2873 [2023-12-21 01:49:54,001 INFO L226 Difference]: Without dead ends: 1765 [2023-12-21 01:49:54,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2023-12-21 01:49:54,002 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 102 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:54,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 351 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:49:54,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2023-12-21 01:49:54,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1692. [2023-12-21 01:49:54,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1508 states have (on average 1.0762599469496021) internal successors, (1623), 1517 states have internal predecessors, (1623), 128 states have call successors, (128), 55 states have call predecessors, (128), 55 states have return successors, (128), 119 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-21 01:49:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 1879 transitions. [2023-12-21 01:49:54,280 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 1879 transitions. Word has length 236 [2023-12-21 01:49:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:54,280 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 1879 transitions. [2023-12-21 01:49:54,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:54,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 1879 transitions. [2023-12-21 01:49:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-21 01:49:54,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:54,283 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:54,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-21 01:49:54,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:54,490 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:54,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:54,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1486579015, now seen corresponding path program 1 times [2023-12-21 01:49:54,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:54,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78903114] [2023-12-21 01:49:54,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:54,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-21 01:49:55,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:55,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78903114] [2023-12-21 01:49:55,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78903114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:55,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:55,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:49:55,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448297410] [2023-12-21 01:49:55,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:55,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:55,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:55,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:55,274 INFO L87 Difference]: Start difference. First operand 1692 states and 1879 transitions. Second operand has 7 states, 5 states have (on average 17.4) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 01:49:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:55,810 INFO L93 Difference]: Finished difference Result 2860 states and 3165 transitions. [2023-12-21 01:49:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 01:49:55,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 17.4) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 238 [2023-12-21 01:49:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:55,812 INFO L225 Difference]: With dead ends: 2860 [2023-12-21 01:49:55,813 INFO L226 Difference]: Without dead ends: 1752 [2023-12-21 01:49:55,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:49:55,815 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 75 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:55,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 500 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:49:55,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2023-12-21 01:49:56,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1562. [2023-12-21 01:49:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1378 states have (on average 1.0616835994194485) internal successors, (1463), 1387 states have internal predecessors, (1463), 128 states have call successors, (128), 55 states have call predecessors, (128), 55 states have return successors, (128), 119 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-21 01:49:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1719 transitions. [2023-12-21 01:49:56,100 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1719 transitions. Word has length 238 [2023-12-21 01:49:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:56,100 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 1719 transitions. [2023-12-21 01:49:56,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 17.4) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 01:49:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1719 transitions. [2023-12-21 01:49:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-21 01:49:56,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:56,102 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 01:49:56,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-21 01:49:56,103 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:56,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:56,103 INFO L85 PathProgramCache]: Analyzing trace with hash -545606589, now seen corresponding path program 1 times [2023-12-21 01:49:56,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:56,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525368780] [2023-12-21 01:49:56,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:56,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:49:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 01:49:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 01:49:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 01:49:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 01:49:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 01:49:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 01:49:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 01:49:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 01:49:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 01:49:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:49:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:49:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 01:49:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 01:49:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 01:49:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 01:49:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 01:49:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:49:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:49:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 01:49:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 01:49:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 01:49:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 01:49:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 01:49:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 01:49:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 01:49:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 01:49:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 01:49:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 1536 trivial. 0 not checked. [2023-12-21 01:49:58,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:58,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525368780] [2023-12-21 01:49:58,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525368780] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:58,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405126083] [2023-12-21 01:49:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:58,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:58,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:58,555 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) [2023-12-21 01:49:58,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 01:49:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:58,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-21 01:49:58,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:59,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-12-21 01:49:59,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:59,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 14 [2023-12-21 01:49:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 19 proven. 85 refuted. 0 times theorem prover too weak. 1462 trivial. 0 not checked. [2023-12-21 01:49:59,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:49:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-12-21 01:49:59,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405126083] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:59,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:49:59,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [23, 14] total 39 [2023-12-21 01:49:59,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479128961] [2023-12-21 01:49:59,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:59,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 01:49:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:59,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 01:49:59,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1374, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 01:49:59,613 INFO L87 Difference]: Start difference. First operand 1562 states and 1719 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:50:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:50:00,553 INFO L93 Difference]: Finished difference Result 2371 states and 2608 transitions. [2023-12-21 01:50:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 01:50:00,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 238 [2023-12-21 01:50:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:50:00,554 INFO L225 Difference]: With dead ends: 2371 [2023-12-21 01:50:00,554 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 01:50:00,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 535 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=2157, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 01:50:00,557 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 173 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:50:00,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1159 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:50:00,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 01:50:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 01:50:00,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 01:50:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 01:50:00,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 238 [2023-12-21 01:50:00,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:50:00,557 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 01:50:00,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:50:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 01:50:00,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 01:50:00,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 01:50:00,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 01:50:00,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:50:00,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 01:50:13,423 WARN L293 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 331 DAG size of output: 463 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-21 01:51:12,607 WARN L293 SmtUtils]: Spent 58.48s on a formula simplification. DAG size of input: 459 DAG size of output: 573 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-21 02:02:04,656 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-20-30-4-11-5-6-5-14-5-6-5-10-5-10-5-11-4-11-4-11-4-11-4-11-4-11-4-11-4-11-4-9-4-9-3-9-3-4-2-4-2-4-2-4-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-66-24-4-11-5-11-5-14-5-11-5-11-5-11-5-11-4-11-4-11-4-11-4-11-4-11-4-11-4-11-4-9-4-9-3-9-3-4-2-4-2-4-2-4-2-2-1 context. [2023-12-21 02:02:04,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:02:04,664 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-21 02:02:04,666 INFO L158 Benchmark]: Toolchain (without parser) took 840027.17ms. Allocated memory was 307.2MB in the beginning and 1.2GB in the end (delta: 921.7MB). Free memory was 265.2MB in the beginning and 633.8MB in the end (delta: -368.6MB). Peak memory consumption was 553.6MB. Max. memory is 8.0GB. [2023-12-21 02:02:04,666 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:02:04,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.40ms. Allocated memory is still 307.2MB. Free memory was 264.7MB in the beginning and 249.3MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 02:02:04,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.04ms. Allocated memory is still 307.2MB. Free memory was 249.3MB in the beginning and 244.7MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:02:04,666 INFO L158 Benchmark]: Boogie Preprocessor took 76.86ms. Allocated memory is still 307.2MB. Free memory was 244.7MB in the beginning and 238.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-21 02:02:04,666 INFO L158 Benchmark]: RCFGBuilder took 510.76ms. Allocated memory is still 307.2MB. Free memory was 238.9MB in the beginning and 206.5MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-21 02:02:04,666 INFO L158 Benchmark]: TraceAbstraction took 839128.21ms. Allocated memory was 307.2MB in the beginning and 1.2GB in the end (delta: 921.7MB). Free memory was 206.0MB in the beginning and 633.8MB in the end (delta: -427.9MB). Peak memory consumption was 494.9MB. Max. memory is 8.0GB. [2023-12-21 02:02:04,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.40ms. Allocated memory is still 307.2MB. Free memory was 264.7MB in the beginning and 249.3MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.04ms. Allocated memory is still 307.2MB. Free memory was 249.3MB in the beginning and 244.7MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 76.86ms. Allocated memory is still 307.2MB. Free memory was 244.7MB in the beginning and 238.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 510.76ms. Allocated memory is still 307.2MB. Free memory was 238.9MB in the beginning and 206.5MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 839128.21ms. Allocated memory was 307.2MB in the beginning and 1.2GB in the end (delta: 921.7MB). Free memory was 206.0MB in the beginning and 633.8MB in the end (delta: -427.9MB). Peak memory consumption was 494.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-8-16-3-8-6-10-6-10-5-7-4-7-2-7-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-18-16-5-8-6-10-6-10-5-7-4-7-2-7-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown